WO2017043663A1 - Antenna device - Google Patents

Antenna device Download PDF

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Publication number
WO2017043663A1
WO2017043663A1 PCT/JP2016/076871 JP2016076871W WO2017043663A1 WO 2017043663 A1 WO2017043663 A1 WO 2017043663A1 JP 2016076871 W JP2016076871 W JP 2016076871W WO 2017043663 A1 WO2017043663 A1 WO 2017043663A1
Authority
WO
WIPO (PCT)
Prior art keywords
support
support surface
antenna
antenna device
cable
Prior art date
Application number
PCT/JP2016/076871
Other languages
French (fr)
Japanese (ja)
Inventor
佳紘 新原
佑一郎 山口
千葉 洋
昌輝 上山
官 寧
博育 田山
Original Assignee
株式会社フジクラ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2016117497A external-priority patent/JP6595409B2/en
Application filed by 株式会社フジクラ filed Critical 株式会社フジクラ
Priority to CN201680002379.7A priority Critical patent/CN107078388B/en
Priority to US15/508,993 priority patent/US10170825B2/en
Priority to EP16838078.0A priority patent/EP3182508B1/en
Priority claimed from JP2016178056A external-priority patent/JP6842263B2/en
Publication of WO2017043663A1 publication Critical patent/WO2017043663A1/en

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/16Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/30Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/40Element having extended radiating surface

Definitions

  • the present invention relates to an antenna device including a film antenna and a cable connected to the film antenna.
  • a flexible film antenna is widely used as an antenna that can be easily mounted.
  • the film antenna refers to an antenna having a flexible dielectric film and an antenna conductor formed on the surface of the dielectric film.
  • film antennas that are used by being attached to automobile windows are widely known.
  • a three-dimensional antenna When a three-dimensional antenna is configured using a flexible film antenna, it is preferable to maintain or maintain the three-dimensional structure of the antenna conductor by attaching or winding a film athena on a rigid support. This is because the antenna characteristics change when the three-dimensional structure of the antenna conductor changes.
  • high-frequency current input / output to / from the film antenna is performed using a cable (for example, a coaxial cable) connected to a power feeding unit including two connection points.
  • the film antenna and the cable are usually connected by soldering two connection points provided on the antenna conductor of the film antenna and the hot side / cold side conductor of the cable (inner side / outer side conductor of the coaxial cable). Yes.
  • the gable may be disconnected from the feeding portion (two connection points) of the film antenna.
  • a holding member described in Patent Document 1 is known as a technique that can be used to increase durability against cable pulling.
  • a cable is fitted into a groove formed in a holding member, and the cable is held by the holding member so that even if one end of the cable is pulled, the force is not easily transmitted to the other end. Therefore, if the holding member holds the cable connected to the film antenna, durability against cable pulling can be enhanced.
  • the holding member described in Patent Document 1 has a function of enhancing durability against cable pulling, it does not have a function of maintaining the three-dimensional structure of the antenna conductor. Therefore, the antenna characteristics cannot be made constant simply by holding the cable connected to the film antenna by the holding member described in Patent Document 1.
  • problems such as a complicated structure and an increase in size are caused. To do.
  • the present invention has been made in view of the above problems, and an object of the present invention is to increase the complexity and size of the structure of an antenna device including a film antenna and a cable connected to the film antenna. In other words, it is to improve the uniformity of antenna characteristics and durability against cable pulling.
  • an antenna device includes a film antenna, a cable connected to a feeding portion of the film antenna, and a support around which at least a part of the film antenna is wound.
  • the support has a holding means for holding the cable.
  • the present invention relates to an antenna device including a film antenna and a cable connected to the film antenna, and does not cause a complicated structure or an increase in size, and the antenna characteristics are constant and the cable is durable against pulling. And can be enhanced.
  • FIG. 1 is a perspective view of an antenna device according to a first embodiment. It is a perspective view of the support body with which the antenna apparatus shown in FIG. 1 is provided. It is a top view of the film antenna with which the antenna apparatus shown in FIG. 1 is provided.
  • A) is a perspective view of the film antenna and cable with which the antenna apparatus shown in FIG. 1 is equipped.
  • B is a perspective view of the film antenna with which the antenna apparatus is provided.
  • A) is a perspective view of the modification of the resin mold part with which the antenna apparatus which concerns on 1st Embodiment is provided.
  • (B) is a side view which shows the left side surface of the resin mold part shown to (a).
  • FIG. 1 A plan view, a front view, a right side view, and a bottom view of the antenna device shown in FIG. 1, respectively.
  • A is a perspective view of the vehicle body carrying the spoiler which incorporates the antenna device which concerns on 2nd Embodiment.
  • B is a perspective view of the spoiler.
  • A) is a perspective view of the antenna device which concerns on 2nd Embodiment.
  • B) is an exploded perspective view of the antenna device. It is a top view of the film antenna with which the antenna apparatus which concerns on 2nd Embodiment is provided.
  • A) is an enlarged plan view of the support body with which the antenna apparatus which concerns on 2nd Embodiment is provided.
  • B is an enlarged perspective view of the support.
  • (A) is a top view of the 3rd support surface of the support body with which the modification of the antenna device which concerns on 3rd Embodiment is provided.
  • (B) is an expanded sectional view of the modification of the antenna device which concerns on 2nd Embodiment. It is a figure which shows the method of accommodating the antenna apparatus shown in FIG. 1 in a spoiler. It is the perspective view and top view of an antenna device which concern on 4th Embodiment. It is a figure which shows the method of accommodating the antenna apparatus shown in FIG. 19 in a spoiler.
  • FIG. 1 is a perspective view of the antenna device 1.
  • 2A is a top perspective view of the support 30 included in the antenna device 1
  • FIG. 2B is a bottom perspective view of the support 30.
  • FIG. 3 is a plan view of the film antenna 10 included in the antenna device 1.
  • up, down, left, right, front, rear of the antenna device means “up on z-axis positive direction” and “down on z-axis negative direction” based on the xyz coordinate system of each drawing.
  • Y axis positive direction is right
  • y axis negative direction is left
  • x axis positive direction is rear
  • x axis negative direction is front
  • the antenna device 1 includes a film antenna 10, a coaxial cable 20, and a support 30 as shown in FIG.
  • the film antenna 10 is wound around the support 30 so as to have a predetermined three-dimensional structure. Further, the coaxial cable 20 connected to the power feeding unit 14 including the two connection points 14a and 14b of the film antenna 10 is held by the support 30 so as to pass through a predetermined wiring path.
  • the support 30 includes a first support surface 31, a second support surface 32 that intersects with the first support surface 31 (orthogonal in the present embodiment), the first support surface 31, and the second support surface 32. It is a structure having a third support surface 33 that intersects (orthogonally in the present embodiment).
  • the film antenna 10 is wound around the support 30 so that the front surface or the back surface thereof is in contact with the first support surface 31, the second support surface 32, and the third support surface 33.
  • the box-shaped resin molded product shown in FIG. 2 is used as the support 30, the upper surface is the first support surface 31, and the rear side surface (the side surface on the x-axis positive direction side in the illustrated coordinate system)
  • the second support surface 32 and its lower surface are referred to as a third support surface 33. Since this resin molded product is thinned from the upper surface side, the upper end surface of the partition wall that remains without being thinned (the hatched portion in FIG. 2A) hatches the first support surface 31. Constitute.
  • the third support surface 33 of the support 30 protrudes forward (the negative x-axis direction in the illustrated coordinate system) from the first support surface 31 and is opposed to the region where the first support surface 31 is formed. 33a and a non-opposing region 33b that does not face the region where the first support surface 31 is formed.
  • the support 30 holds the coaxial cable 20 so as to pass through a predetermined wiring path, and as a holding means for enhancing durability against pulling of the coaxial cable 20, a first holding part 34, a second holding part 35, And the 3rd holding
  • the third support surface 33 of the support 30 is formed with a first recess 37 and a second recess 38 that communicates with the first recess 37 and extends toward the end of the third support surface 33.
  • the first and second concave portions 37 and 38 correspond to the concave accommodating portion in the present invention, and accommodate the connection portion between the end portion of the coaxial cable 20 and the power feeding portion 14, and the coaxial cable 20 extending therefrom is inserted therethrough. To do.
  • the connection portion between the end portion of the coaxial cable 20 and the power feeding portion 14 is covered with a resin mold portion 21 described later (see FIG. 4).
  • the first recess 37 is a recess formed in the vicinity of the boundary between the third support surface 33 and the second support surface 32 in the third support surface 33, and extends along the boundary between the third and second support surfaces. It is a long recess extending in the direction (y-axis direction in the illustrated coordinate system), and is recessed in the direction from the third support surface 33 toward the first support surface 31 (z-axis positive direction in the illustrated coordinate system). It is a recess.
  • the 1st recessed part 37 has a magnitude
  • the second concave portion 38 is a concave portion whose width is smaller than that of the first concave portion 37, one end portion communicating with the first concave portion 37, and the other end portion supporting the third. It extends to the end of the surface 33. Similarly to the first concave portion 37, the concave portion extends in the direction along the boundary between the third and second support surfaces 32 (y-axis direction in the illustrated coordinate system) and is supported from the third support surface 33 to the first support. The concave portion is recessed in the direction toward the surface 31 (z-axis positive direction in the illustrated coordinate system).
  • the 2nd recessed part 38 has a magnitude
  • the film antenna 10 includes a first and a second connecting portion between the end portion of the coaxial cable 20 and the feeding portion 14 provided in the vicinity of the boundary between the third supporting surface 33 and the second supporting surface 32. It is attached to the support body 30 so as to be accommodated in the recesses 37 and 38, and is further wound around the support body 30 so as to contact the first support surface 31, the second support surface 32, and the third support surface 33. ing.
  • the film antenna 10 has one end (an end side on the first antenna conductor 12 side, which will be described later) disposed at the end of the first support surface 31 opposite to the second support surface 32 side,
  • the other end of the third support surface 33 is wound around the support body 30 so as to extend forward from the end of the third support surface 33 opposite to the second support surface 32 side.
  • the first holding portion 34 is provided in a region protruding forward from the end portion of the first support surface 31 opposite to the second support surface 32 side. That is, it is provided on the upper surface side (the z-axis positive direction side in the illustrated coordinate system) of the non-facing region 33b of the third support surface 33.
  • the first holding portion 34 is configured so that a part of the coaxial cable 20 extends along both the first support surface 31 and the second support surface 32 (parallel in the present embodiment) (in the illustrated coordinate system, y (Axial direction) so as to extend.
  • the coaxial cable 20 can be attached to the first holding portion 34.
  • a plurality of (four in the present embodiment) partition walls 34a disposed so that the wall surfaces thereof are perpendicular to both the third support surface 33 and the second support surface 32, and the partition walls A concave portion 34b (slit) formed in the upper portion 34a is used as the holding portion 34.
  • the front end face of the partition wall 34c is inclined so as to protrude forward as it goes downward. For this reason, when the coaxial cable 20 is fitted deeply into the recess 34b of the partition wall 34a, the coaxial cable 20 meanders by being pushed forward by the partition wall 34c, and is more strongly pressed against the partition wall 34a. For this reason, the frictional force that the coaxial cable 20 receives from the partition wall 34a increases, and the coaxial cable 20 is difficult to come off.
  • the second holding portion 35 is provided on the left side surface of the support 30 (the side surface on the y-axis negative direction side in the illustrated coordinate system).
  • the second holding unit 35 holds a part of the coaxial cable 20 so as to extend in a direction perpendicular to the second support surface 32 (x-axis direction in the illustrated coordinate system).
  • the 2nd holding member 35 is the resin mold part accommodated in the concave shape accommodating part (1st and 2nd recessed part 37,38) formed in the boundary vicinity with the 2nd support surface 32 of the 3rd support surface 33.
  • the coaxial cable 20 extending from 21 is bent and guided toward the front (the end opposite to the second support surface 32), and functions to guide the coaxial cable 20 to the first holding member 34.
  • the second holding portion 35 is provided outside the space region sandwiched between the region in contact with the first support surface 31 of the film antenna 10 and the region in contact with the third support surface 33 of the film antenna 10, Even after the film antenna 10 is wound around the support 30, the coaxial cable 20 can be attached to the second holding portion 35.
  • a rectangular parallelepiped protruding portion 35 a protruding leftward from the lower end of the left side surface of the support 30 is used as the second holding portion 35.
  • the protruding portion 35a is formed with a recessed portion 35b that opens from the end surface on the second support surface 32 side to the opposite end surface.
  • the third holding portion 36 is provided on the right side surface of the support 30 (the side surface on the y-axis positive side in the illustrated coordinate system).
  • the third holding unit 36 holds a part of the coaxial cable 20 so as to extend in a direction perpendicular to the second support surface 32 (x-axis direction in the illustrated coordinate system). Then, the third holding member 36 bends the coaxial cable 20 extending from the first holding member 34 and guides it forward. Since the third holding portion 36 is provided outside the space region sandwiched between the region in contact with the first support surface 31 of the film antenna 10 and the region in contact with the third support surface 33 of the film antenna 10, Even after the film antenna 10 is wound around the support 30, the coaxial cable 20 can be attached to the third holding portion 36.
  • a rectangular parallelepiped protruding portion 36a protruding rightward from the lower end of the right side surface of the support 30 is used as the third holding portion 36.
  • the projecting portion 36a is formed with a recess 36b that opens from the end surface on the second support surface 32 side to the end surface on the opposite side.
  • connection portion for accommodating the part covered with (3) is formed.
  • a first holding member 34 for holding the coaxial cable 20 is formed on the surface of the support 30 opposite to the third support surface 33 (on the first support surface 31 side).
  • the support 30 further has two holding members (second and third holding members 35 and 36). These second and third holding members 35, 36 are provided with recesses 35 b, 36 b that open on the opposite side to the surface on which the first holding member 34 is formed, and are respectively disposed on the left side surface and the right side surface of the support 30. Yes.
  • the L-type protrusions 31a and I-type protrusions 31b are formed on the first support surface 31 (the upper end surface of the partition walls).
  • the L-shaped protrusion 31a includes a first columnar portion that extends upward from the first support surface 31 and a second columnar portion that extends forward from the upper end of the first columnar portion.
  • the L-shaped protrusion 31a is hooked on the rectangular opening 12c (see FIG. 3) formed in the film antenna 10, whereby the film antenna 10 is positioned with respect to the support 30 and the first support surface 31 of the film antenna 10 is placed. Even if the contacting part is pulled backward (even if the part contacting the third support surface 33 of the film antenna 10 is pulled forward), the film antenna 10 can be prevented from being detached from the support 30.
  • the I-shaped protrusion 31 b is configured by a columnar portion extending upward from the first support surface 31.
  • the film antenna 10 is positioned with respect to the support 30.
  • an L-shaped guide 32a is formed at the right end of the second support surface 32. Yes.
  • the L-shaped guide 32a is composed of a first plate-like portion extending backward from the second support surface 32 and a second plate-like portion extending rightward from the rear end of the first plate-like portion.
  • an L-shaped guide 32b is formed at the left end of the second support surface 32 (see FIG. 2B).
  • the L-shaped guide 32b includes a first plate-like portion extending backward from the second support surface 32 and a second plate-like portion extending leftward from the rear end of the first plate-like portion.
  • the right end of the film antenna 10 is sandwiched between the second plate-shaped portion of the L-shaped guide 32a and the second support surface 32, and the left end of the film antenna 10 is sandwiched between the second plate-shaped portion of the L-shaped guide 32b and the second support surface 32.
  • the film antenna 10 can be brought into close contact with the second support surface 31.
  • an I-type protrusion 33 d is formed on the third support surface 33.
  • the I-type protrusion 33d is constituted by a columnar portion extending downward from the third support surface 33.
  • a guide ring 33c is formed at the front end of the third support surface 33 (see FIG. 2A).
  • the film antenna 10 can be supported along the third support surface 33 by passing the film antenna 10 through the guide ring 33c. That is, the film antenna 10 penetrates the guide ring 33c and is supported by the guide ring 33c.
  • PC-ABS resin in which a polycarbonate resin (PC resin) is mixed with acrylonitrile, butadiene, and a styrene copolymer synthetic resin (ABS resin), but is not limited thereto. Is not to be done.
  • the film antenna 10 includes a dielectric film 11 and a pair of antenna conductors 12 and 13 formed as a pattern on the surface of the dielectric film 11.
  • the first antenna conductor 12 is provided with a first connection point 14a to which the inner conductor (hot-side conductor) of the coaxial cable 20 is connected.
  • the second antenna conductor 13 is provided with a second connection point 14b to which the outer conductor (cold side conductor) of the coaxial cable 20 is connected.
  • the first connection point 14 a and the second connection point 14 b constitute the power feeding unit 14 of the film antenna 10.
  • the edge part of the coaxial cable 20 is connected to the electric power feeding part 14 (1st and 2nd connection point 14a, 14b) of the film antenna 10.
  • FIG. Specifically, the inner conductor of the coaxial cable 20 is connected to the first connection point 14a by soldering, and the outer conductor of the coaxial cable 20 is connected to the second connection point 14b by soldering.
  • the first antenna conductor 12 and the second antenna conductor 13 constitute a dipole antenna having the former and the latter as radiating elements, or a monopole antenna having the former as a radiating element and the latter as a ground plane.
  • a bell-shaped conductor foil (for example, a copper foil) in which two corners adjacent to each other through a rectangular short side are replaced with quadrants 12a and 12b is used as the first antenna conductor 12.
  • a convex portion is provided on a side between the quadrant ellipses 12 a and 12 b of the first antenna conductor 12, and the first connection point 14 a described above is disposed on the convex portion.
  • a rectangular conductor foil (for example, copper foil) is used as the second antenna conductor 13.
  • a concave portion is provided on the short side of the second antenna conductor 13, and the second connection point 14b described above is disposed in the vicinity of the concave portion.
  • the first antenna conductor 12 and the second antenna conductor 13 are combined so that the former convex portion enters the latter concave portion, and the first connection point 14 a and the second connection point 14 b are the first antenna conductor 12. And the second antenna conductor 13 are opposed to each other through a gap.
  • an opening 13b for improving the adhesive strength between a resin mold portion 21 and a film antenna 10, which will be described later, is formed at an end portion of the second antenna conductor 13 that is close to the first antenna conductor 12.
  • Resin which forms resin mold part 21 by forming resin mold part 21 which covers feeding part 14 of film antenna 10 and a coaxial cable end connected to this feeding part 14 in a field containing this opening 13b The material can reach the front and back surfaces of the film antenna 10 through the opening 13, and the adhesive strength between the resin mold portion 21 and the film antenna 10 can be improved.
  • the film antenna 10 is bent in a U shape with a straight line AA ′ crossing the first antenna conductor 12 and a straight line BB ′ crossing between the first antenna conductor 12 and the second antenna conductor 13 as ridge lines, It is wound around the support 30. That is, the film antenna 10 wound around the support 30 has a bent portion that is bent along a straight line AA ′ along the boundary between the first and second support surfaces 31 and 32 of the support 30, and the second and third supports. A curved portion that is bent along a straight line BB ′ is formed along the boundary between the surfaces 32 and 33.
  • a region 10a (first region: a main portion of the first antenna conductor 12) from the end on the first antenna conductor 12 side to the straight line AA ′ comes into contact with the first support surface 31 of the support 30 and the straight line AA.
  • a region 10b (second region) from 'to the straight line BB' is in contact with the second support surface 32 of the support 30, and a straight line CC '(third region: second region) crossing the second antenna conductor 13 from the straight line BB'.
  • the region 10 c to the main portion of the antenna conductor 13 is in contact with the third support surface 33 of the support 30. Note that the region 10 d from the CC ′ straight line to the end on the second antenna conductor 13 side does not contact any surface of the support 30.
  • An example of the material constituting the dielectric film 11 is polyimide, and an example of the material constituting the pair of antenna conductors 12 and 13 is copper.
  • the film antenna 10 preferably has high flexibility. Therefore, the dielectric film 11 and the antenna conductors 12 and 13 are preferably thin.
  • a copper foil having a thickness of 20 ⁇ m is employed as the antenna conductors 12 and 13, and (2) a polyimide film having an adhesive applied to one surface as the dielectric film 11, including the adhesive A polyimide film having a thickness of 35 ⁇ m can be employed.
  • the film antenna 10 may further include a dielectric film that covers the surfaces of the antenna conductors 12 and 13. That is, the film antenna 10 may have a configuration in which the antenna conductors 12 and 13 are sandwiched between two dielectric films. By covering both surfaces of the antenna conductors 12 and 13 with a dielectric film, damage or deterioration of the antenna conductors 12 and 13 can be prevented.
  • FIG. 4A is a perspective view of the antenna device 1, and illustration of the support 30 is omitted.
  • FIG. 4B is a perspective view of the film antenna 10 provided in the antenna device 1 shown in FIG.
  • the inner and outer conductors of the coaxial cable 20 and the feeder 14 are connected without gaps at the connection portion between the end of the coaxial cable 20 and the feeder 14 and in the vicinity thereof.
  • the covering resin mold part 21 is formed.
  • the resin mold part 21 consists of a resin molding. According to this configuration, it is possible to prevent the inner and outer conductors of the coaxial cable 20 and the power feeding unit 14 from being exposed. Therefore, the connection part between the coaxial cable 20 and the power feeding part 14 is waterproofed by the resin mold part 21, preventing the solder of the power feeding part 14 from being deteriorated due to moisture in the atmosphere, and the water resistance of the film antenna 10. Can be improved.
  • the resin material forming the resin mold portion 21 has the opening 13b when the resin mold portion 21 is molded.
  • the resin mold portion 21 is formed in a shape in which the film antenna 10 is sandwiched from the front surface and the back surface and the resins on both surfaces are connected through the opening 13b. According to this configuration, the adhesive strength between the resin mold part 21 and the film antenna 10 can be improved, and the resin mold part 21 can be prevented from peeling off from the film antenna 10.
  • a resin mold portion 21 ⁇ which is a modification of the resin mold portion 21, will be described with reference to FIG. (A) of FIG. 5 is a perspective view of the antenna apparatus 1 provided with the resin mold part 21 ⁇ .
  • FIG. 5B is a right side view of the resin mold portion 21 ⁇ (a side view obtained when viewed from the y-axis negative direction side in the illustrated coordinate system).
  • illustration of parts (cable parts) other than the support body 30 and the resin mold part 21 ⁇ of the coaxial cable 20 is omitted.
  • the resin mold portion 21 ⁇ is constituted by a first covering portion 22 ⁇ , a second covering portion 23 ⁇ , and a third covering portion 24.
  • the first covering portion 22 ⁇ is formed on the surface of the film antenna 10 (the surface on the z-axis positive direction side in the illustrated coordinate system), and the second covering portion 23 ⁇ is formed on the back surface of the film antenna 10 (in the illustrated coordinate system). z-axis negative direction side surface).
  • coated part 24 is formed in the edge part from which the cable part of the coaxial cable 20 is pulled out.
  • the region where the first covering portion 22 ⁇ is in contact with the surface of the film antenna 10 and the region where the second covering portion 23 ⁇ is in contact with the back surface of the film antenna 10 are relative to the third region 10c. When viewed from the vertical direction (z-axis direction in the illustrated coordinate system), they overlap with each other without excess or deficiency.
  • the thickness of the first covering portion 22 ⁇ (height when measured from the surface of the film antenna 10) approaches the BB ′ line from the center of the coaxial cable 20, in other words, the third region 10c of the film antenna 10. And the second region 10b are configured to gradually become thinner as they approach the bent portion.
  • the portion where the thickness is gradually reduced is referred to as a skirt portion 22 ⁇ 1 of the first covering portion 22 ⁇ .
  • the skirt portion 22 ⁇ 1 includes an end side along the BB ′ line (an end side closer to the BB ′ line) among the end sides of the first covering portion 22 ⁇ .
  • the thickness of the second covering portion 23 ⁇ (height when measured from the surface of the film antenna 10) is closer to the line BB ′ from the center of the coaxial cable 20, in other words, the thickness of the film antenna 10 is increased. It is comprised so that it may become thin gradually as the bending part between 3 area
  • the portion where the thickness is gradually reduced is referred to as a skirt portion 23 ⁇ 1 of the second covering portion 23 ⁇ .
  • the skirt portion 23 ⁇ 1 includes an end side along the BB ′ line (an end side closer to the BB ′ line) among the end sides of the second covering portion 23 ⁇ .
  • the skirt portion 22 ⁇ 1 of the first covering portion 22 ⁇ and the skirt portion 23 ⁇ 1 of the second covering portion 23 ⁇ are formed opposite to each other on the front and back of the same region. Therefore, when the film antenna 10 is bent with the BB ′ line as a ridgeline, the stress generated by the bending can be distributed to the skirt portion 22 ⁇ 1 of the first covering portion 22 ⁇ and the skirt portion 23 ⁇ 1 of the second covering portion 23 ⁇ .
  • the thickness of the skirt portions 22 ⁇ 1 and 23 ⁇ 1 is configured to gradually decrease as it approaches the BB ′ line, when the film antenna 10 is bent, the first covering portion 22 ⁇ and the second covering portion 23 ⁇ are formed. Each of these is configured to be more flexible with respect to the force acting in the z-axis direction as it approaches the BB ′ line. Accordingly, the stress generated by the bending of the film antenna 10 does not concentrate on the end sides along the BB ′ line of the first covering portion 22 ⁇ and the second covering portion 23 ⁇ , and as the skirt portions 22 ⁇ 1, 23 ⁇ 1 move away from the BB ′ line. It is gradually eased.
  • the film antenna 10 is peeled off from the edge located near the BB ′ line of the first covering portion 22 ⁇ .
  • the film antenna 10 can be prevented from being peeled off for a long period of time, and the end side located near the BB ′ line of the second covering portion 23 ⁇ . Therefore, the water resistance of the antenna device 10 can be maintained at a high level over a long period of time.
  • the film antenna 10 has a shape in which the film antenna 10 is developed in a plane in the resin mold portion forming step.
  • the resin mold part 21 ⁇ is injection-molded as it is, and then a winding step of winding the film antenna 10 around the support 30 is performed. Since the resin mold portion 21 ⁇ is formed along the shape of the unfolded film antenna 10, in the winding step, the end portion of the first covering portion 22 ⁇ and the second covering portion 23 ⁇ is along the line BB ′. A large stress acts on the edge.
  • the resin mold portion 22 ⁇ provided with the skirt portions 22 ⁇ 1 and 23 ⁇ 1 is suitable as a resin mold portion formed by injection molding using such a mold. Moreover, it is suitable also when employ
  • each of the first covering portion 22 ⁇ and the second covering portion 23 ⁇ is configured to gradually decrease from the center of the coaxial cable 20 toward the CC ′ line.
  • the portions where the thickness gradually decreases are referred to as skirt portions 22 ⁇ 2 and 23 ⁇ 2 of the first covering portion 22 ⁇ and the second covering portion 23 ⁇ .
  • the second antenna conductor 13 is configured not to be bent. Therefore, the skirt portions 22 ⁇ 2 and 23 ⁇ 2 do not actively contribute to the improvement of the water resistance of the antenna device 10, but have an effect of improving the aesthetic appearance of the resin mold portion 21 ⁇ .
  • each of the first cover portion 22 ⁇ and the second cover portion 23 ⁇ may include the skirt portions 22 ⁇ 2 and 23 ⁇ 2.
  • FIG. 6A to 6D are a plan view, a front view, a side view showing the left side, and a bottom view of the antenna device 1, respectively.
  • the film antenna 10 is not shown for easy understanding of the wiring path of the coaxial cable 20.
  • the film antenna 10 to which the coaxial cable 20 is connected is wound around the support 30, and the connection portion between the end of the coaxial cable 20 and the power feeding unit 14 is formed on the third support surface 33 of the support 30.
  • the second recesses 37 and 38 are accommodated.
  • the coaxial cable 20 drawn from the power supply unit 14 to the left side surface of the support 30 (the y-axis negative direction side in the illustrated coordinate system) is located in front of the support 30 as shown in FIG. After being bent in the negative direction of the x-axis in the illustrated coordinate system, the second holding portion 35 is fitted.
  • the left side surface of the support 30 is configured to intersect the first support surface 31, the second support surface 32, and the third support surface 33.
  • the second holding unit 35 holds the coaxial cable 20 so that a part of the coaxial cable 20 extends along the first support surface 31 and the third support surface 33 and in a direction intersecting the second support surface 32.
  • the coaxial cable 20 after being fitted into the second holding portion 35 is bent above the support 30 (z-axis positive direction in the illustrated coordinate system) and is Is bent in the direction (y-axis positive direction in the illustrated coordinate system), and then fitted into the first holding portion 34.
  • the first holding unit 34 holds the coaxial cable 20 such that a part of the coaxial cable 20 extends in a direction along the first support surface 31 and the second support surface 32.
  • the coaxial cable 20 after being fitted into the first holding part 34 is bent forward of the support 30 (in the illustrated coordinate system, in the negative x-axis direction) as shown in FIG.
  • the first holding portion 34 is provided outside the space region sandwiched between the region 10 a of the film antenna 10 and the region 10 c of the film antenna 10. Is preferred. That is, when the support 30 is viewed in plan, the first holding part 34 is preferably provided outside the first support surface 31 as shown in FIG. In the wiring path of the coaxial cable 20, the second holding part 35 is preferably provided outside the first support surface 31. According to these configurations, even after the film antenna 10 is wound around the support 30, the coaxial cable 20 is easily fitted into each of the first holding part 34 and the second holding part 35. be able to. Therefore, since the labor required for manufacturing the antenna device 1 can be reduced, the manufacturing cost of the antenna device 1 can be reduced.
  • One characteristic point in the wiring path of the coaxial cable 20 is that, as shown in FIG. 6B, the first holding portion 34 is provided on the first support surface 31 and the second support surface 32 in the coaxial cable 20. This is a point that holds the portion extending in the direction along the distance D1 from the portion to the first support surface 31 so as to be equal to the distance D2 from the portion to the third support surface 33. According to this configuration, good radiation characteristics can be obtained even when a part of the coaxial cable 20 adopts a wiring path that crosses the third support surface 33. The radiation characteristics in this case will be described later in the first embodiment.
  • the first holding portion 34 is configured to hold a portion of the coaxial cable 20 that extends in the direction along the first support surface 31 and the second support surface 32 such that the distance D1 is equal to or greater than the distance D2. It may be. Even with this configuration, it is possible to suppress deterioration in radiation characteristics when a part of the coaxial cable 20 employs a wiring path that crosses the third support surface 33. The radiation characteristics in this case will be described later in the second embodiment.
  • the recess 34 b of the first holding part 34 opens above the support 30 (z-axis positive direction in the illustrated coordinate system), and the second holding part 35.
  • the recess 35b is preferably opened below the support 30 (in the negative z-axis direction in the illustrated coordinate system).
  • maintenance part 36 is also opened below the support body 30 (z-axis negative direction in the coordinate system shown in figure). That is, each of the second and third holding portions 35 and 36 has the concave portions 35b and 36b so that the same direction as the opening direction of the first and second concave portions 37 and 38 formed on the third support surface 33 is opened.
  • the first holding portion 34 is formed with a concave portion 34b so that the opposite direction opens.
  • the support body 30 having the first to third holding portions 34, 35, and 36 can be easily formed using a pair of upper and lower molds, and the manufacturing cost of the antenna device 1 can be reduced. Can do.
  • each holding portion for holding the coaxial cable 20 is formed on the upper side and the lower side of the support body 30, durability against the pulling of the coaxial cable 20 (connection between the coaxial cable 20 and the power feeding portion 14). The durability of the part can be increased.
  • the second holding unit 35 is provided below the support body 30 (on the negative side of the z axis in the illustrated coordinate system) with respect to the first holding unit 34.
  • the coaxial cable 20 held by the first holding part 34 and the second holding part 35 is connected to the first and third support surfaces 31 and 33 between the first holding part 34 and the second holding part 35. It is preferably configured to extend in the intersecting direction (Z-axis direction). Further, as shown in FIG.
  • the third holding part 36 is provided below the support 30 (on the negative z-axis direction side in the illustrated coordinate system) with respect to the first holding part 34,
  • the coaxial cable 20 held by the first holding unit 34 and the third holding unit 36 intersects the first and third support surfaces 31 and 33 between the first holding unit 34 and the third holding unit 36 (Z It is preferable to be configured to extend in the axial direction).
  • the coaxial cable 20 extending in the y-axis negative direction from the resin mold portion 21 accommodated in the first and second recesses 37 and 38 is held by the second holding portion 35 so as to be bent and extend in the x-axis negative direction.
  • the coaxial cable 20 held by the second holding part 35 is bent and extends in the positive z-axis direction toward the first holding part 34, and is bent and extends in the positive y-axis direction. 34 (see (a) to (c) of FIG. 6).
  • the coaxial cable 20 held by the first holding part 34 is bent and extends in the negative z-axis direction toward the third holding part 36, and is bent and extends in the negative x-axis direction. 36 (see FIGS. 6B and 6D).
  • the coaxial cable 20 is prevented from being detached from each of the first holding part 34 and the second holding part 35. be able to. And even if it is a case where the force of the direction pulled from the antenna apparatus 1 acts with respect to the coaxial cable 20 by hold
  • the surface with which the bent portion of the coaxial cable 20 comes into contact is preferably constituted by a smooth curved surface.
  • the end of the second holding unit 35 on the front side (the negative x-axis side in the coordinate system shown) of the support 30.
  • the surface with which the bent portion of the coaxial cable 20 contacts is a curved surface. According to this configuration, when a force in the direction of pulling from the antenna device 1 is applied to the coaxial cable 20, the front end portion of the support 30 of the second holding portion 35 damages the coaxial cable 20 and eventually. It is possible to prevent disconnection.
  • the first manufacturing method of the antenna device 1 includes a step of connecting the coaxial cable 20 to the power feeding unit 14 of the film antenna 10, and the end of the power feeding unit 14 and the coaxial cable 20 connected to the power feeding unit 14.
  • the support 30 having the first support surface 31, the second support surface 32 that intersects the first support surface 31, and the third support surface 33 that faces the first support surface 31 and intersects the second support surface 32.
  • the first and second holding portions 34 and 35 (holding means) for holding the coaxial cable 20 and the first and second recesses 37 and 38 (for holding the resin mold portion 21) are provided.
  • the resin mold part 21 is formed by an injection molding method using a mold for resin molding.
  • the film antenna 10 in which the end of the coaxial cable 20 is connected to the power feeding unit 14 is set in a mold, and the region near the power feeding unit including the power feeding unit 14 is accommodated in the mold cavity. Thereafter, the cavity is filled with a high-temperature molten resin material, and the molten resin material is cooled and cured in the cavity. Then, by taking out the film antenna 10 from the mold, it is possible to obtain the film antenna 10 in which the feeding portion 14 and the end of the coaxial cable 20 connected to the feeding portion 14 are covered with the resin mold portion 21. .
  • a moisture curable urethane hot melt for example, TECHNOMELT PUR 9515 manufactured by Henkel
  • TECHNOMELT PUR 9515 manufactured by Henkel
  • an ultraviolet curable resin or the like can be used.
  • the film antenna 10 was wound around the support body 30, and the antenna apparatus 1 was manufactured, It is not limited.
  • the second manufacturing method will be specifically described below.
  • the second manufacturing method of the antenna device 1 includes a connecting step of connecting the coaxial cable 20 to the power feeding portion 14 of the film antenna 10, a first support surface 31, and a second crossing the first support surface 31.
  • a support body 30 having a support surface 32 and a third support surface 33 facing the first support surface 31 and intersecting the second support surface 32, and a first and a second holding for holding the coaxial cable 20
  • the support body 30 having the portions 34 and 35 (holding means) and having the third support surface 33 provided with the first and second concave portions 37 and 38 (concave housing portions) for housing the power feeding portion 14 is prepared. Process.
  • the film antenna 10 is attached to the support 30 and the first support surface 31 so that the connection portion of the power feeding unit 14 and the coaxial cable 20 is accommodated in the first and second recesses 37 and 38 (concave accommodation portions).
  • a wiring step of wiring so that 20 portions of the coaxial cable extend in a direction along the first support surface 31 and the second support surface 32.
  • the first and second concave portions 37 and 38 (concave housing portions) in which the connecting portions of the power feeding portion 14 and the coaxial cable 20 are accommodated are filled with a liquid resin material, and this resin It includes a resin mold part forming step of forming a resin mold part 21 that covers the power supply part 14 and the end of the coaxial cable 20 connected to the power supply part 14 by curing the material.
  • FIG. 7A is a perspective view of a vehicle body 50 on which a spoiler 52 incorporating the antenna device 1 is mounted.
  • FIG. 7B is a perspective view of the spoiler 52.
  • a spoiler 52 is mounted on the rear end of the roof 51 of the vehicle body 50.
  • the spoiler 52 is an integrally molded resin member.
  • the spoiler 52 has a structure (not shown) for determining the position of the spoiler 52 relative to the rear end of the roof 51 at a predetermined position, and a structure (not shown) for fixing the spoiler 52 at a predetermined position of the roof 51.
  • Have. The spoiler 52 is fixed to a predetermined position of the roof 51 using these structures.
  • the spoiler 52 has functions such as suppressing the turbulence of the airflow at the rear part of the vehicle body 50 (rectifying the airflow) and improving the aesthetics of the vehicle body 50.
  • the spoiler 52 is configured so that the size in the vertical direction gradually decreases as it approaches the rear end.
  • the rear portion of the spoiler 52 is configured so that a gap is formed inside (so as to have a hollow structure) (see FIG. 7B).
  • the spoiler 52 incorporating the antenna device 1 is realized by mounting the antenna device 1 in the gap.
  • the antenna device 1 has a spoiler 52 in which the arrangement state of the antenna device 1 shown in FIG. 1 is reversed upside down so that the third support surface 33 of the support 30 faces the top surface of the spoiler 52 mounted on the vehicle body 50. Is placed.
  • the antenna device 1 described in the first embodiment can be mounted, for example, on a car body of an automobile.
  • the end portion of the film antenna 10 is vibrated by receiving wind.
  • the edge part of the film antenna 10 continues receiving a wind, it is also considered that the edge part deform
  • the antenna device 1 ⁇ according to the second embodiment is an antenna device that further aims to prevent such noise generation and deformation.
  • FIG. 8A is a perspective view of the antenna device 1 ⁇ .
  • FIG. 8B is an exploded perspective view of the antenna device 1 ⁇ .
  • FIG. 9 is a plan view of a film antenna 10 ⁇ included in the antenna device 1 ⁇ .
  • FIG. 10A is an enlarged plan view of a support 30 ⁇ included in the antenna device 1 ⁇ .
  • FIG. 10B is an enlarged perspective view of the support 30 ⁇ .
  • the antenna device 1 ⁇ includes a film antenna 10 ⁇ , a coaxial cable 20, and a support 30 ⁇ .
  • the film antenna 10 ⁇ is a member corresponding to the film antenna 10 included in the antenna device 1 of the first embodiment.
  • the support 30 ⁇ is a member corresponding to the support 30 provided in the antenna device 1 of the first embodiment.
  • the resin mold part 21 ⁇ is a member corresponding to the resin mold part 21 provided in the antenna device 1 of the first embodiment.
  • the support 30 ⁇ is different from the support 30 in the antenna device 1 of the first embodiment in that a slot 31c is formed.
  • the slot 31c is a hole that is recessed in a direction (z-axis negative direction in the illustrated coordinate system) from the first support surface 31 of the support 30 ⁇ toward the third support surface 33 (not shown in FIG. 8).
  • the shape of the opening 31ap of the slot 31c formed in the first support surface 31 is a rectangle whose long side is along the y-axis direction of the illustrated coordinate system and whose short side is along the x-axis direction of the illustrated coordinate system.
  • the slot 31c having a shape in which the rectangular opening 31ap is recessed in the negative z-axis direction has a rectangular parallelepiped space, and has four side walls, that is, a pair of side walls including the long sides of the opening 31ap (each other And a pair of side walls including a short side of the opening 31ap (a pair of side walls facing each other).
  • the film antenna 10 ⁇ is obtained by replacing the dielectric film 11 provided in the film antenna 10 in the antenna device 1 of the first embodiment with the dielectric film 11 ⁇ .
  • the dielectric film 11 ⁇ is obtained by stretching the dielectric film 11 according to the first embodiment in a direction away from the power feeding unit 14.
  • the film antenna 10 ⁇ including the dielectric film 11 ⁇ includes, in addition to the regions 10a to 10d, a region 10e (fourth region: on the first antenna conductor 12 side) from the end on the first antenna conductor 12 side to the straight line DD ′. End portion).
  • a rectangular opening 11a is formed in the region 10e.
  • the film antenna 10 ⁇ is wound around the support 30 ⁇ by bending it into a U shape with the straight lines AA ′ and BB ′ as ridge lines. Further, the film antenna 10 ⁇ can be inserted into the slot 31c of the support 30 ⁇ by bending the straight line DD ′ as a ridgeline.
  • FIG. 10 is an enlarged view of the fixing means on the y-axis negative direction side of the two fixing means.
  • the fixing means on the y-axis negative direction side is constituted by a pair of ribs 31d and 31e and a wedge-shaped protrusion 13f.
  • the fixing means on the y-axis positive direction side is configured similarly to the fixing means on the y-axis negative direction side.
  • each of the ribs 31d and 31e is formed from one of the pair of side walls including the long side of the opening 31ap (the side wall on the x-axis positive direction side in the illustrated coordinate system). It is a protrusion protruding toward the other side wall (a side wall on the x-axis negative direction side in the illustrated coordinate system).
  • Each of the ribs 31d and 31e extends linearly in a direction from the first support surface 31 toward the third support surface 33 (z-axis negative direction in the illustrated coordinate system). That is, the direction in which each of the ribs 31d and 31e is extended is parallel to each other.
  • the protruding amount of each of the ribs 31d and 31e is 1 ⁇ 2 of the length of the short side of the opening 31ap.
  • the wedge-shaped protrusion 13f is a protrusion protruding from the side wall on the x-axis negative direction side toward the side wall on the x-axis positive direction side among the pair of side walls including the long side of the opening 31ap.
  • the wedge-shaped protrusion 13f is positioned between the rib 31d and the rib 31e in the y-axis direction in the illustrated coordinate system when the opening 31ap is viewed in plan.
  • the wedge-shaped protrusion 13f is positioned between the first support surface 31 and the third support surface 33 with respect to the depth direction of the slot 31c (the z-axis direction in the illustrated coordinate system).
  • the shape of the wedge-shaped protrusion 13f is a trapezoid when viewed from the y-axis negative direction side of the illustrated coordinate system (see FIG. 10B).
  • the angle formed by the slope portion 31f1 corresponding to one leg and the side wall on the x-axis negative direction side is an acute angle
  • the stopper portion 31f2 corresponding to the other leg and the x-axis negative direction The angle between the side wall and the side wall is a right angle.
  • the protrusion amount of the wedge-shaped protrusion 13f (height when measured from the side wall on the x-axis negative direction side) gradually increases as the distance from the first support surface 31 to the third support surface 33 increases.
  • the predetermined size After reaching the size (the height of the trapezoid), the predetermined size is maintained, and then suddenly becomes zero.
  • the maximum protrusion amount of the wedge-shaped protrusion 13f that is, the height of the trapezoid, is slightly larger than 1/2 or 1/2 of the length of the short side of the opening 31ap.
  • the region 10e can be smoothly inserted into the slot 31c.
  • the region 10e When the region 10e is inserted into the slot 31c and the opening 11a (see FIG. 9) reaches a position corresponding to the wedge-shaped protrusion 13f, the region 10e becomes a side wall on the x axis positive direction side of the slot 31c by the ribs 31d and 31e. Is pushed in the direction of the side wall on the negative side of the x-axis, and the opening 11a is caught by the wedge-shaped protrusion 13f.
  • the wedge-shaped protrusion 13f is formed with a stopper 31f2 which is formed on the side of the third support surface 33, the opening 11a is unintentionally applied even if a force in the direction of pulling out from the slot 31c is applied to the region 10e.
  • the wedge-shaped protrusion 13f does not come off. That is, the area 10e does not unintentionally leave the slot 31c.
  • the region 10e that is the end of the film antenna 10 ⁇ is housed in the slot 31c and does not come out, so that the antenna device 1 ⁇ receives wind. Even when the film antenna 10 ⁇ is mounted at a position, the film antenna 10 ⁇ is in close contact with the support 30 ⁇ . Accordingly, since the film antenna 10 ⁇ does not vibrate even when receiving wind, it is possible to prevent the generation of noise such as wind noise. In addition, the end of the film antenna 10 ⁇ can be prevented from being deformed.
  • the manufacturing method of the antenna device 1 ⁇ is the same as the manufacturing method of the antenna device 1, but further includes a step of inserting the region 10e into the slot 31c as a part of the winding step.
  • ⁇ Preferred coaxial cable wiring path It is known that the radiation characteristics of an antenna device are easily affected by the environment in the vicinity of the antenna device.
  • the inventors of the present invention provide the antenna device 1 according to the first embodiment in which the coaxial cable 20 is configured to cross the third support surface 33 in a direction along the second support surface 32. It has been found that the radiation characteristics change depending on the wiring path of the coaxial cable 20 extending from the power feeding unit 14. Specifically, the antenna device 1 depends on the magnitude relationship of the distances (distance D1 and distance D2) between the coaxial cable 20 held by the first holding member 34 and the first and second antenna conductors 12 and 13. We found that the radiation characteristics of the slab changed.
  • the distance (distance D1) between the coaxial cable 20 and the first and second antenna conductors 12 and 13 is changed by changing the depth of the recess 34b of the first holding member 34 of the antenna device 1 according to the first embodiment.
  • the result of measuring the radiation characteristics by changing the magnitude relationship between the distance and the distance D2) will be described.
  • an antenna device that employs a configuration in which the coaxial cable drawn from the power feeding section does not cross the film antenna is used as a reference example.
  • the coaxial cable drawn out from the power feeding unit is arranged so as to be kept away from the antenna device without being fitted into the second holding unit 35 and the first holding unit 34.
  • the antenna device of this reference example has a structure that does not have a strength against pulling of the coaxial cable.
  • the film antenna included in the antenna device of the reference example is the same as the film antenna 10 included in the antenna device 1 of the first embodiment, and the winding method of the film antenna 10 around the support 30 is also the same. It is. That is, the only difference is that the coaxial cable 20 is not held by the first holding part 24 of the support 30.
  • FIG. 11 is a graph showing the frequency dependence of VSWR (Voltage Standing Wave Ratio) and average gain of the antenna device according to the reference example. This average gain is calculated by averaging the radiation gain in the xy plane obtained by the antenna device over the entire 360 °.
  • VSWR Voltage Standing Wave Ratio
  • the antenna device of the reference example shows a VSWR that is less than 2 in the 800 MHz band and rapidly increases in the frequency band of 700 MHz or less. Further, referring to the plot of the average gain of all polarizations in the horizontal plane shown in FIG. 11, it can be seen that the antenna device of the reference example shows a good average gain exceeding ⁇ 1 dBi in the 800 MHz band.
  • FIG. 12 is a graph showing the frequency dependence of the VSWR and average gain of the antenna device 1 of the first embodiment.
  • the antenna device 1 of the first embodiment shows a VSWR that is less than 2 in the 800 MHz band and rapidly increases in the frequency band of 700 MHz or less. Further, referring to the plot of the average gain of all the polarizations in the horizontal plane shown in FIG. 11, the antenna device 1 of the first example shows a good average gain exceeding ⁇ 1 dBi in the 800 MHz band. I understand.
  • the coaxial cable 20 employs the configuration in which the coaxial cable 20 crosses the film antenna 10
  • the coaxial cable does not cross the film antenna from the antenna device. It was found that the antenna device of the reference example adopting the configuration that is kept away from the antenna shows the same radiation characteristics.
  • FIG. 13 is a graph showing the frequency dependence of the VSWR and average gain of the antenna device 1 of the second embodiment.
  • the antenna device 1 of the second embodiment can be obtained by adopting 15.6 mm as the distance D1 and 1.4 mm as the distance D2 in the antenna device 1. That is, the antenna device 1 of the second embodiment employs a configuration in which the distance D1 is greater than or equal to the distance D2.
  • the antenna device 1 of the second embodiment and the antenna device 1 of the first embodiment are the same except for the numerical values of the distance D1 and the distance D2.
  • the antenna device 1 of the second embodiment shows a VSWR that is about 2 in the 800 MHz band and rapidly increases in the frequency band of 700 MHz or less. Further, referring to the plot of the average gain of all polarizations in the horizontal plane shown in FIG. 13, the antenna device 1 of the second embodiment shows a good average gain exceeding ⁇ 1 dBi in the 800 MHz band. I understand.
  • the antenna device 1 of the second embodiment a configuration in which the coaxial cable 20 does not cross the film antenna is adopted although the coaxial cable 20 adopts a configuration in which the film antenna 10 is crossed. It was found that the antenna device of the reference example shows the same radiation characteristics.
  • FIG. 14 is a graph showing the frequency dependence of VSWR and average gain of the antenna device 1 of the third embodiment.
  • the antenna device 1 of the third example is obtained by adopting 1.4 mm as the distance D1 and 15.6 mm as the distance D2 in the antenna device 1 of the present embodiment. That is, the antenna device 1 of the third embodiment employs a configuration in which the distance D1 is smaller than the distance D2.
  • the antenna device 1 of the third embodiment and the antenna device 1 of the first and second embodiments are the same except for the numerical values of the distance D1 and the distance D2.
  • the antenna device 1 of the third embodiment shows a VSWR that is about 2 in the 800 MHz band but does not increase in the frequency band of 700 MHz or less. Further, the average gain of all the polarizations in the horizontal plane shown in FIG. 14 is significantly lower than ⁇ 1 dBi in the 800 MHz band.
  • the VSWR is the reference antenna device. It was found that the average gain was greatly reduced with a different shape.
  • the distance D2 is equal to or greater than the distance D1. It has been found preferable to employ the configuration. Note that the same result holds for a configuration in which the coaxial cable 20 held by the first holding member 34 is drawn forward from the middle without crossing the film antenna 10 (see the fourth embodiment described later). .
  • FIG. 15A is a perspective view of a support 30A provided in the antenna device 1 ⁇ .
  • FIG. 15B is a perspective view of the antenna device 1 ⁇ .
  • FIG. 16 is a flowchart of a method for manufacturing the antenna device 1 ⁇ .
  • the antenna device 1 ⁇ according to the present embodiment is obtained by replacing the support 30 and the resin mold part 21 in the antenna device 1 according to the first embodiment with a support 30A and a resin mold part 21A, respectively. Therefore, in the present embodiment, the description will focus on the support 30A and the resin mold portion 21A. In addition, about the member similar to the antenna apparatus 1, the same code
  • the support 30A includes a first concave portion 37A, a second concave portion 38A, and an L-shaped groove portion 37B on the third support surface 33.
  • the 1st and 2nd crevices 37A and 38A are composition corresponding to the 1st and 2nd crevices 37 and 38 in a 1st embodiment, respectively.
  • the L-shaped groove portion 37B communicates with the first concave portion 37A and extends to the end portion of the third support surface 33, and is present inside the first concave portion 37A when the resin mold portion 21A described later is molded. It functions as a vent that allows air to escape to the outside.
  • the support 30A includes a first support surface 31, a second support surface 32 that intersects the first support surface 31, and a first support surface, similarly to the support 30 in the antenna device 1 according to the first embodiment.
  • 31 is a structure having a third support surface 33 facing the first support surface 32 and intersecting with the second support surface 32, and the film antenna 10 is wound so as to be in contact with the first to third support surfaces 31 to 33.
  • the support 30A includes a first holding part 34, a second holding part 35, and a third holding part 36 for holding the coaxial cable 20 connected to the film antenna 10, and the first embodiment includes The coaxial cable 20 connected to the film antenna 10 is wired similarly to the support body 30 in the antenna device 1.
  • the manufacturing method of the antenna device 1 ⁇ includes a connecting step of connecting the coaxial cable 20 to the power feeding unit 14 of the film antenna 10, a first support surface 31, and a second support surface 32 that intersects the first support surface 31. And a support body 30 having a third support surface 33 facing the first support surface 31 and intersecting the second support surface 32, and a first and second holding portion 34 for holding the coaxial cable 20. And a step of preparing a support 30A having the first support portion 35 (holding means) and the first and second concave portions 37A and 38A (concave housing portions) for housing the power feeding unit 14 provided on the third support surface 33. Including.
  • the film antenna 10 is attached to the support 30A so that the power feeding portion 14 is accommodated in the first and second recesses 37A and 38A (concave accommodation portions), and the first support surface 31, the second support surface 32, and A winding step of winding the film antenna 10 around the support 30 so as to contact the third support surface 33, and the coaxial cable 20 is held by the first and second holding portions 34 and 35 (holding means), and the first support surface 31 and a wiring step of wiring so that 20 portions of the coaxial cable extend in a direction along the second support surface 32.
  • the first and second concave portions 37A and 38A (concave housing portions) in which the power feeding portion 14 is accommodated are filled with a liquid resin material, and the resin material is cured, thereby supplying the power feeding portion 14 and the power feeding portion.
  • 14 includes a resin mold portion forming step of forming a resin mold portion 21A that covers the end portion of the coaxial cable 20 connected to 14.
  • the L-shaped groove portion 37B communicating with the first concave portion 37A by providing the L-shaped groove portion 37B communicating with the first concave portion 37A, the air existing inside the first and second concave portions 37A, 38A (concave housing portion) is released to the outside, and the liquid state Resin material can flow in smoothly. For this reason, generation
  • antenna device 1 ⁇ Referring to FIG. 11, a method for manufacturing antenna device 1 ⁇ will be described in detail.
  • the antenna device 1 ⁇ is subjected to the resin mold part forming steps (steps S102, S104, S106, and S108) after passing through the connection step, the winding step, and the wiring step (step S100). Manufacturing.
  • the resin mold part forming step includes a jig setting step (step S102) in which the support 30A around which the film antenna 10 is wound is set between a pair of fixing plates constituting the jig 100, and a film.
  • step S106 After the filling step (step S106) of filling the liquid resin material into the first concave portion 37A and the liquid resin material filled in the first concave portion 37A are cured to form the resin mold portion 21A, the jig 100 And an extraction step (step S108) for extracting the antenna device 1 ⁇ from the antenna device.
  • the support 30A around which the film antenna 10 is wound is set between a pair of fixing plates constituting the jig 100.
  • the fixing plates are opposed to the first and third support surfaces 31 and 33 of the support 30A, and the support 30A is disposed in a direction in which the second holding portion 35 of the support 30A is positioned upward.
  • the first and second recesses 37A, 38A provided on the third support surface 33 are arranged side by side along the vertical direction, and the end of the second recess 38A communicating with the first recess 37A is formed. It arrange
  • step S104 the pair of fixing plates are pressed toward the first support surface 31 and the third support surface 33, respectively, on the support 30A around which the film antenna 10 is wound.
  • the film antenna 10 is pressed against the support 30A with a more uniform pressure, and the film antenna 10 comes into close contact with the first and third support surfaces 31 and 33, respectively.
  • step S106 when the liquid resin material is filled in the first concave portion 37A provided on the third support surface 33, the resin material leaks to the outside of the first concave portion 37A. Can be prevented.
  • step S106 a liquid resin material is injected from the end (upper end) of the second recess 38A, and the first recess 37A is filled with the liquid resin material.
  • the liquid resin material may be injected using a tapered needle.
  • a liquid resin material may be injected while applying pressure.
  • the air present in the first recess 37A can be released to the outside by the L-shaped groove portion 37B communicating with the first recess 37A. Therefore, the liquid resin material injected from the upper end of the second recess 38A can be caused to flow into the first recess 37A, and the first recess 37A can be filled with the liquid resin material.
  • step S108 the liquid resin material filled in the first recess 37A is hardened to connect the power supply unit 14 accommodated in the first recess 37A and the power supply unit 14.
  • a resin mold portion 21 ⁇ / b> A that covers the end portion of the coaxial cable 20 is formed. After forming the resin mold part 21, the pair of fixing plates sandwiching the support 30A is removed, and the antenna device 1 ⁇ is taken out from the jig 100.
  • the timing of taking out the antenna device 1 ⁇ from the jig 100 is the curing time and viscosity of the resin used, It can be set as appropriate according to the temperature.
  • a two-component mixed urethane resin for example, WEVOPUR PD 4 manufactured by WEVO-CHEMIE
  • WEVO-CHEMIE WEVO-CHEMIE
  • the resin mold portion 21A formed using WEVOPUR PD 4 manufactured by WEVO-CHEMIE is formed by curing a liquid resin material filled in the first concave portion 37A at room temperature. Therefore, for example, compared with the resin mold part 21 of the antenna device 1 according to the first embodiment formed by injection molding using TECHNOMELT PUR 9515 of Henkel, which is a moisture-curable urethane hot melt. There is an advantage that the stress applied to the antenna 10 is small. Further, since the resin mold portion 21A formed using WEVOPUR PD 4 of WEVO-CHEMIE has a small hardness, it is possible to suppress peeling due to a difference in thermal expansion coefficient between the resin mold portion 21A and the film antenna 10. There is.
  • the wiring process can be performed even after the resin mold portion forming process is performed.
  • the first interface or the second interface is peeled off.
  • Which interface of the first interface and the second interface peels depends on the stress acting on each of the first interface and the second interface, the adhesive force between the support 30A and the resin mold portion 21A at the first interface, It is determined by the balance between the adhesive strength between the resin mold portion 21A and the film antenna 10A at the two interfaces.
  • the stress acting on the first interface exceeds the adhesive force between the support 30A and the resin mold part 21A, the first interface peels off and the stress acting on the second interface adheres between the resin mold part 21A and the film antenna 10A.
  • the second interface peels off.
  • the resin mold portion 21A is a member for preventing the inner conductor and outer conductor of the coaxial cable 20 and the power feeding portion 14 from being exposed, and as a result, improving the water resistance of the film antenna 10. Therefore, when the resin mold part 21A and the film antenna 10 peel at the second interface, there arises a problem that the water resistance of the film antenna 10 deteriorates. Conversely, when the support 30A and the resin mold portion 21A are peeled off at the first interface, the inner conductor and the outer conductor of the coaxial cable 20 and the power feeding portion 14 remain covered with the resin mold portion. The water resistance of the antenna 10 does not deteriorate.
  • the antenna device 1 ⁇ ′ which is a modification of the antenna device 1 ⁇ , further prevents the water resistance of the film antenna from being deteriorated by suppressing the separation between the resin mold portion 21A and the film antenna 10 at the second interface. This is an antenna device intended.
  • FIG. 17A is a plan view of the third support surface 33 of the support 30B provided in the antenna device 1 ⁇ ′. More specifically, it is a plan view obtained when the third support surface 33 is viewed from the z-axis negative direction side in the illustrated coordinate system.
  • FIG. 17B is an enlarged cross-sectional view of the antenna device 1 ⁇ ′. More specifically, FIG. 18 is an enlarged cross-sectional view of the resin mold portion 21B in a cross section taken along the line AA ′ illustrated in FIG.
  • the antenna device 1 ⁇ ′ is obtained by replacing the support 30A provided in the antenna device 1 ⁇ with a support 30B.
  • Each of the first concave portion 37C, the second concave portion 38B, and the J-shaped groove portion (groove portion) 37D provided in the support body 30B includes the first concave portion 37A and the second concave portion provided in the support body 30A. 38A and the L-shaped groove portion 37B.
  • symbol is attached
  • the support 30B is obtained by making the following changes to the support 30A.
  • the J-shaped groove portion 37D that communicates with the first recess portion 37C and functions as a vent hole for escaping the air present inside the first recess portion 37C to the outside includes the first recess portion 37C and the second recess portion 38B.
  • the concave accommodating part is formed.
  • Change point 1 The cross-sectional shape of the first concave portion 37C and the cross-sectional shape of the J-shaped groove portion 37D are changed from a rectangle to a shape illustrated in FIG.
  • ⁇ Change point 2 An adhesive layer is formed in a region surrounding the concave accommodating portion of the third support surface 33.
  • ⁇ Change point 3 The shape of the J-shaped groove portion 37D, which is a groove portion, is changed from an L-shape to a J-shape (see FIG. 17A).
  • the cross-sectional shape of the first concave portion 37C and the cross-sectional shape of the J-shaped groove portion 37D will be described with reference to FIG. Since the cross-sectional shape of the first concave portion 37C and the cross-sectional shape of the J-shaped groove portion 37D are similar, the cross-sectional shape of the first concave portion 37C will be described here.
  • the cross-sectional shape of the first recess 37C is deep from the opening formed in the third support surface 33 (distance relative to the z-axis direction in the coordinate system shown). As the distance increases, the width (distance with respect to the x-axis direction in the illustrated coordinate system) becomes narrower. In other words, the width of the first recess 37C is configured to be narrowest at the bottom where the depth from the opening is the deepest, widest at the opening, and wider from the bottom toward the opening.
  • the width of the first recess 37C does not need to include a portion that becomes narrower as it approaches the opening from the bottom. As shown in FIG. 17B, the width of the first recess 37C with respect to the depth from the opening. It may include a portion where does not change.
  • the resin material forming the resin mold portion 21B, which is filled and cured in the first concave portion 37C, is configured such that the width of the first concave portion 37C increases from the bottom toward the opening. It becomes easy to peel from the support 30B. Therefore, when the antenna device 1 ⁇ ′ is exposed to various temperature changes, the resin mold part 21B is easily peeled off from the support 30B at the first interface that is the interface between the support 30B and the resin mold part 21B. As a result, it is possible to prevent the resin mold portion 21B from being peeled off from the film antenna 10 at the second interface, which is the interface between the resin mold portion 21B and the film antenna 10. Therefore, the antenna device 1 ⁇ ′ can prevent the water resistance of the film antenna 10 from deteriorating compared to the antenna device 1 ⁇ .
  • the surface of the first recess 37C is preferably formed as smoothly as possible.
  • the resin material filled in the first concave portion 37C enters the unevenness to every corner, and is generated between the support 30B and the resin mold portion 21B. It can be considered that the adhesive strength is increased (anchor effect).
  • anchor effect By forming the surface of the first concave portion 37C as smoothly as possible, the anchor effect can be suppressed, and the adhesive force generated between the support 30B and the resin mold portion 21B can be suppressed.
  • a release material may be applied to the surface of the first recess 37C before being filled with the resin material. According to this configuration, the resin mold portion 21B formed of a resin material is easily peeled from the surface of the first recess 37C.
  • a double-sided tape 33c which is an adhesive layer, is formed in a region surrounding the first concave portion 37C, the second concave portion 38B, and the J-shaped groove portion 37D, which are concave accommodating portions.
  • an adhesive may be used instead of the double-sided tape.
  • the film antenna 10 is adhered to the third support surface of the support 30B using a double-sided tape 33c. Therefore, it is possible to easily prevent the liquid resin material filled in the first recess 37C from flowing out between the support 30B and the film antenna 10 in the filling step (see step S106, FIG. 16). it can.
  • the resin material When manufacturing the antenna device 1 ⁇ including the support 30A, the resin material is placed in the first recess 37A in a state where the support 30A is sandwiched using the jig 100 as in step S106 illustrated in FIG. It was filling. However, when the antenna device 1 ⁇ ′ including the support 30B is manufactured, the resin material can be filled into the first concave portion 37C even when the support 30B is not sandwiched using the jig 100. it can. That is, the pressurizing step S104 can be omitted.
  • a J-shaped groove 37 is formed instead of the L-shaped groove 37B as a groove communicating the inside of the first recess 37C and the outside of the support 30B.
  • the shape of the groove part which connects the inside of the 1st recessed part 37C and the exterior of the support body 30B is not limited to L shape or J shape, and other shapes may be sufficient.
  • the manufacturing method of the antenna device 1 ⁇ ′ is different from the manufacturing method of the antenna device 1 ⁇ in the following points.
  • the same step number is attached
  • the concave accommodating portion Prior to the winding step, that is, between the step of preparing the support 30B and the winding step, the concave accommodating portion (the first concave portion 37C, the second concave portion 38B, and the J-shaped groove portion 37D of the third support surface 33).
  • the concave accommodating portion Prior to the winding step, that is, between the step of preparing the support 30B and the winding step, the concave accommodating portion (the first concave portion 37C, the second concave portion 38B, and the J-shaped groove portion 37D of the third support surface 33).
  • the winding step further includes an adhesion step of adhering the film antenna 10 to the support 30B using an adhesive layer (double-sided tape 33c) when the film antenna 10 is wound around the support 30B.
  • the pressurizing step S104 can be omitted.
  • the jig 100 does not have to be used to fill the first concave portion 37C with the resin material. Therefore, the antenna device 1 ⁇ ′ can be manufactured with fewer man-hours than the antenna device 1 ⁇ .
  • FIG. 18 is a diagram illustrating a storage method for storing the antenna device 1 in the spoiler 52.
  • the shapes of the antenna device 1 and the spoiler 52 are modeled as appropriate for easy understanding of the storage method.
  • the spoiler 52 has a housing divided into a vessel portion 52a and a lid portion 52b.
  • the container portion 52a is provided with a first storage chamber 52a1 and a second storage chamber 52a2 that communicate with each other.
  • the first storage chamber 52a1 is a space mainly for storing the support 30 of the antenna device 1, and has a deeper depth than the second storage chamber 52a2.
  • the first storage chamber 52a1 is provided with a pair of support plates 52a3 and 52a4 that face each other.
  • the second storage chamber 52a2 is a space for mainly storing the film antenna 10 of the antenna device 1, and is shallower than the first storage chamber 52a1.
  • the first storage chamber 52a1 and the second storage chamber 52a2 are open at the top, and the antenna device 1 is stored in the first storage chamber 52a1 and the second storage chamber 52a2 from above.
  • the support 30 of the antenna device 1 is sandwiched between support plates 52a3 and 52a4 in the first storage chamber 52a1 as shown in FIG. 18 (b).
  • the elastic protrusions 39a1 and 39a2 formed on the side walls constituting the left and right side surfaces of the support 30 are fitted into the openings formed in the pair of support plates 52a3 and 52a4.
  • the position of the support body 30 in the 1st storage chamber 52a1 is fixed, and it becomes difficult for the support body 30 to drop
  • the film antenna 10 extending from the support 30 is stored in a second storage chamber 52a2 that communicates with the first storage chamber 52a1. Further, as shown in FIG.
  • the coaxial cable 20 pulled out from the support 30 passes through a through hole (not shown) formed in the front side wall of the first storage chamber 52a1 and is stored in the first storage. It is pulled out of the chamber 52a1.
  • the first storage chamber 52a1 and the second storage chamber 52a2 are closed by the lid 52b after the antenna device 1 is stored, as shown in FIG. 18C.
  • the antenna devices 1 ⁇ and 1 ⁇ according to the second and third embodiments can also be housed in the spoiler 52 using the same method as the method for housing the antenna device 1 according to the first embodiment in the spoiler 52. It is.
  • FIG. 19A is a perspective view of the antenna device 1 ⁇
  • FIG. 19B is a plan view of the antenna device 1 ⁇ .
  • the antenna device 1 ⁇ includes a film antenna 10, a coaxial cable 20, and a support 30.
  • the antenna device 1 ⁇ is obtained by changing the antenna 1 according to the first embodiment in the following points.
  • the coaxial cable 20 crosses the film antenna 10 in the width direction in the support 30 and is drawn from the side of the support 30.
  • the coaxial cable 20 is drawn from the front of the support 30 without traversing the film antenna 10 in the width direction in the support 30.
  • a recess 30a1 is formed at the center of the upper end of the side wall 30a constituting the front side surface of the support 30 as a path for drawing the coaxial cable 20 from the front of the support 30.
  • the third holding portion 36 for holding the coaxial cable 20 drawn from the side of the support 30 is omitted.
  • a through hole may be formed at the center of the side wall 30a and used as a passage for the coaxial cable 20. Good.
  • a pair of elastic protrusions 39a1 and 39a2 for fixing the antenna device 1 to the spoiler 52 are formed on the left and right side surfaces of the support 30.
  • the protrusions 39b1 and 39b2 are provided on the left side surface of the second holding portion 35 and the right side surface of the support body 30 in order to fix the antenna device 1 to the spoiler 52. It is formed in the vicinity of the tip of a pair of elastic plates 39 extending forward from the front end.
  • the bottom plate of the support body 30 constituting the lower surface of the support body 30 terminates on the front side surface of the support body 30, whereas
  • the bottom plate of the support 30 constituting the third support surface 33 extends forward as compared to the front side surface of the support 30 as a support plate 33e for supporting the film antenna 10.
  • Steps 33e1 and 33e2 are formed on the left and right sides of the support plate 33e, and the width of the support plate 33e in front of the steps 33e1 and 33e2 is wider than the width of the support plate 33e in the rear of the steps 33e1 and 33e2. Yes.
  • the antenna device 1 according to the first embodiment is designed to be housed in a spoiler 52 having a housing divided into a vessel portion and a lid portion, whereas the antenna device 1 according to this embodiment
  • the antenna device 1 ⁇ is designed to be housed in a spoiler 52 having a housing in which an insertion port is formed.
  • Each of the above changes corresponds to a difference in the storage method in the spoiler 52. Note that a method for mounting the antenna device 1 ⁇ according to the present embodiment on the spoiler 52 having a housing in which an insertion port is formed will be described later with reference to another drawing.
  • the antenna device 1 ⁇ according to the fourth embodiment is suitable for housing in a spoiler 52 of an automobile, particularly a spoiler 52 having a housing in which an insertion port is formed.
  • a housing method for housing the antenna device 1 ⁇ according to the fourth embodiment in such a spoiler 52 will be described with reference to FIG.
  • FIG. 20 is a diagram illustrating a storage method for storing the antenna device 1 ⁇ in the spoiler 52.
  • the shapes of the antenna device 1 ⁇ and the spoiler 52 are modeled as appropriate in order to easily illustrate the storage method.
  • the spoiler 52 has a shape in which a top plate 52d constituting the upper surface of the casing protrudes forward from the side wall constituting the front surface of the casing.
  • a housing chamber for housing the support body 30 of the antenna device 1 ⁇ is formed in the housing, and a side wall constituting the front surface of the housing is for inserting the support body 30 of the antenna device 1 ⁇ into the housing.
  • An insertion port 52c is formed.
  • L-shaped protrusions 52d1 and 52d2 for holding the support plate 33e of the antenna device 1 ⁇ are formed on the lower surface of the top plate 52d.
  • the support plate 33e of the antenna device 1 ⁇ is brought into contact with the top plate 52d of the spoiler 52.
  • a portion of the support plate 33e having a narrower width behind the steps 33e1 and 33e2 is passed between the L-shaped protrusions 52d1 and 52d2, so that the support plate 33e does not interfere with the L-shaped protrusions 52d1 and 52d2.
  • the support plate 33e can be brought into contact with the top plate 52d.
  • the antenna device 1 ⁇ is moved backward while the support plate 33 e is in contact with the top plate 52 d of the spoiler 52, and the support 30 is moved from the insertion port 52 c of the spoiler 52. Insert into the housing.
  • the support 30 of the antenna device 1 ⁇ is housed in the housing of the spoiler 52, and portions of the support plate 33e of the antenna device 1 ⁇ that are wider in front of the steps 33e1 and 33e2 are held by the L-shaped protrusions 52d1 and 52d2. Is done.
  • the elastic body 39 When the antenna device 1 ⁇ is taken out from the spoiler 52, the elastic body 39 is bent inward by pushing the portions 39c1 and 39c2 ahead of the protrusions 39b1 and 39b2 of the elastic plate 39 so that the protrusions 39b1 and 39b2
  • the antenna device 1 ⁇ may be pulled out from the spoiler 52 after being prevented from hanging on the side wall that forms the front surface of the housing of the spoiler 52.
  • an antenna device includes a film antenna, a cable connected to a feeding portion of the film antenna, and a support around which at least a part of the film antenna is wound.
  • the support has a holding means for holding the cable.
  • the film antenna is wound around the support, a change in the three-dimensional structure of the antenna conductor included in the film antenna can be suppressed. That is, the uniformity of the antenna characteristics can be improved. Moreover, according to said structure, since the said cable is hold
  • the support body has a function of improving the uniformity of the antenna characteristics and a function of improving the durability against cable pulling. Therefore, it is possible to improve the uniformity of the antenna characteristics and the durability against cable pulling without incurring a complicated structure or an increase in size.
  • the expression that the film antenna is wound around the support means that the film antenna is deformed along the surface of the support so that the film antenna is not detached from the support.
  • the above expression does not imply that the film antenna is wound more than once around the support.
  • the film antenna is deformed along the four surfaces of the support (for example, the upper surface, the right side, the lower surface, and the left side) and the film antenna is not detached from the support.
  • the film antenna is deformed so as to be along the three surfaces (for example, the upper surface, the right side surface, and the lower surface) of the support so that the film antenna is not detached from the support.
  • An aspect in which the film antenna is not detached from the support by being deformed along two surfaces (for example, the upper surface and the right side) of the support is also included in the meaning range of the above expression.
  • the support includes a first support surface, a second support surface that intersects the first support surface, and the first support surface, and the second support surface.
  • the film antenna is wound around the support body so as to contact the first support surface, the second support surface, and the third support surface.
  • the holding means preferably has a first holding portion for holding the cable such that a part of the cable extends in a direction along the first support surface and the second support surface. .
  • the film antenna is wound around the support so as to be in contact with the three support surfaces. Therefore, the change in the three-dimensional structure of the antenna conductor provided in the film antenna can be further suppressed.
  • the wiring path of the portion of the cable that extends in the direction along the first support surface and the second support surface greatly affects the antenna characteristics.
  • the said part is hold
  • the first holding portion is provided at a position protruding forward from an end portion of the first support surface opposite to the second support surface side. Is preferred.
  • the work of fixing the cable to the first holding portion can be performed even after the film antenna is wound around the support.
  • the film antenna includes a first antenna conductor connected to a hot-side conductor of the cable and a second antenna conductor connected to a cold-side conductor of the cable.
  • the film antenna is supported so that a main portion of the first antenna conductor is along the first support surface and a main portion of the second antenna conductor is along the third support surface.
  • the first holding portion is a portion of the cable that extends in a direction along the first support surface and the second support surface, and a distance from the portion to the first support surface. It is preferable to hold the portion so as to be equal to the distance from the portion to the third support surface.
  • the film antenna includes a first antenna conductor connected to a hot-side conductor of the cable and a second antenna conductor connected to a cold-side conductor of the cable.
  • the film antenna is supported so that a main portion of the first antenna conductor is along the first support surface and a main portion of the second antenna conductor is along the third support surface.
  • the first holding portion is a portion of the cable that extends in a direction along the first support surface and the second support surface, and a distance from the portion to the first support surface. It is preferable to hold so that it may become more than the distance from the said part to the said 3rd support surface.
  • the holding unit holds the cable such that a part of the cable extends along the first support surface and in a direction intersecting the second support surface. It is preferable to further have 2 holding parts.
  • the second holding portion is sandwiched between a region in contact with the first support surface of the film antenna and a region in contact with the third support surface of the film antenna. It is preferable to be provided outside the space region.
  • the work of fixing the cable to the first holding portion can be performed even after the film antenna is wound around the support.
  • the second holding portion has a concave portion opened in the same direction as the opening direction of the concave accommodating portion formed in the third support surface, and the first holding portion. It is preferable that the part has a recessed part opened in the opposite direction.
  • the cable held by the first and second holding portions may be arranged between the first holding portion and the second holding portion. It is preferable that it is comprised so that it may extend in the direction which crosses.
  • a surface of the second holding portion that contacts a bent portion of the cable is configured by a smooth curved surface.
  • the film antenna is bent in a U shape so as to contact the first, second, and third support surfaces of the support, and in the support, A guide ring is formed at the end of the third support surface opposite to the second support surface, and the film antenna penetrates the guide ring and is supported by the guide ring. It is preferable.
  • the film antenna can be brought into close contact with the support. Therefore, the change in the three-dimensional structure of the antenna conductor can be further suppressed.
  • a connecting portion between the power feeding portion and the cable is covered with a resin mold portion, and the support has a concave accommodating portion that accommodates the resin mold portion. Is preferred.
  • the connecting portion between the power feeding portion and the cable is covered with the resin mold portion, and the cable is held by the support, so that durability against cable pulling can be enhanced.
  • the resin mold portion is configured by a first covering portion formed on the surface of the film antenna and a second covering portion formed on the back surface, It is preferable that the first and second covering portions communicate with each other through an opening formed in the film antenna.
  • the adhesive strength of the resin mold part with respect to a film antenna can be improved, and it can prevent that a resin mold part peels from a film antenna.
  • the first covering portion of the resin mold portion is accommodated in the concave accommodating portion formed in the vicinity of the boundary between the third supporting surface and the second supporting surface.
  • the film antenna is wound around the support, and the film antenna is formed with a bent portion that is bent along a boundary between the third and second support surfaces, and the first and second of the resin mold portion are formed. It is preferable that the thickness of the covering portion becomes thinner as the curved portion is approached.
  • the resin mold part is arrange
  • each of the first covering portion and the second covering portion is configured to become thinner as approaching the curved portion of the film antenna, each of the first covering portion and the second covering portion is It is configured to become more flexible as it approaches the music section. Therefore, the stress generated by bending can be relieved, and it can be prevented that the stress is concentrated on the edges located near the curved portions of the first covering portion and the second covering portion.
  • the antenna device manufacturing method includes a connecting step of connecting a cable to a feeding portion of a film antenna, and a resin forming a resin mold portion that covers the feeding portion and an end of the cable connected to the feeding portion.
  • a support having a mold part forming step, a first support surface, a second support surface that intersects the first support surface, and a third support surface that faces the first support surface and intersects the second support surface
  • the film antenna is attached to the support so that the resin mold portion is accommodated, and the film antenna is contacted with the first support surface, the second support surface, and the third support surface.
  • the above-described antenna device according to the present invention can be easily manufactured.
  • a method for manufacturing an antenna device includes a connection step of connecting a cable to a feeding portion of a film antenna, a first support surface, a second support surface intersecting the first support surface, and the first A support body having a third support surface facing the support surface and intersecting the second support surface, the support body having a holding means for holding the cable, and housing the power feeding portion on the third support surface And a step of preparing a support body having a concave housing portion for attaching the film antenna to the support body so that the feeding portion is housed in the concave housing portion, and the first support surface, the first A winding step of winding the film antenna around the support so as to come into contact with the second support surface and the third support surface; and the holding means holding the cable; and the first support surface and the second support A wiring step of wiring so that a part of the cable extends in a direction along the surface, and filling and curing the resin material in the concave housing portion, and the power feeding portion housed in the concave housing
  • the above-described antenna device according to the present invention can be easily manufactured.
  • the method for manufacturing an antenna device further includes an adhesive layer forming step of forming an adhesive layer in a region surrounding the concave accommodating portion of the third support surface prior to the winding step, and the winding
  • the step further includes an adhesion step of adhering the film antenna to the support using the adhesive layer when the film antenna is wound around the support.
  • the support and the film antenna are bonded by the adhesive layer in a region surrounding the contour of the concave housing portion, the support body surrounding the contour of the concave housing portion ( In particular, there is no gap between the third support surface) and the film antenna. Therefore, in the region surrounding the outline of the concave accommodating portion, the resin material filled in the concave accommodating portion remains inside the concave accommodating portion. Therefore, the resin material can be easily prevented from flowing out between the support and the film antenna.

Landscapes

  • Details Of Aerials (AREA)

Abstract

This invention is provided with a film antenna (10), a cable (20) connected to a power supply part (14) of the film antenna (10), and a support body (30) onto which at least a part of the film antenna (20) is wound. The support body (30) has a holding means for holding the cable (20).

Description

アンテナ装置Antenna device
 本願発明は、フィルムアンテナと、このフィルムアンテナに接続されたケーブルとを備えたアンテナ装置に関する。 The present invention relates to an antenna device including a film antenna and a cable connected to the film antenna.
 実装が容易なアンテナとして、可撓性を有するフィルムアンテナが広く普及している。ここで、フィルムアンテナとは、可撓性を有する誘電体フィルムと、誘電体フィルムの表面に形成されたアンテナ導体とを有するアンテナのことを指す。例えば、自動車のウインドウに貼り付けて使用するフィルムアンテナは、広く知られたところである。 A flexible film antenna is widely used as an antenna that can be easily mounted. Here, the film antenna refers to an antenna having a flexible dielectric film and an antenna conductor formed on the surface of the dielectric film. For example, film antennas that are used by being attached to automobile windows are widely known.
 可撓性を有するフィルムアンテナを用いて立体的なアンテナを構成する場合、フィルムアテナを、剛性の高い支持体に貼り付けたり、巻き付けたりして、アンテナ導体の立体構造を維持させることが好ましい。アンテナ導体の立体構造が変化すると、アンテナ特性が変化してしまうからである。 When a three-dimensional antenna is configured using a flexible film antenna, it is preferable to maintain or maintain the three-dimensional structure of the antenna conductor by attaching or winding a film athena on a rigid support. This is because the antenna characteristics change when the three-dimensional structure of the antenna conductor changes.
 ところで、フィルムアンテナに対する高周波電流の入出力は、2つの接続点からなる給電部に接続されたケーブル(例えば、同軸ケーブル)を用いて行われる。フィルムアンテナとケーブルとは、通常、フィルムアンテナのアンテナ導体に設けられた2つの接続点とケーブルのホット側/コールド側導体(同軸ケーブルの内側/外側導体)とを半田付けすることにより接続されている。このため、ケーブルが強い力で引っ張られると、ゲーブルがフィルムアンテナの給電部(2つの接続点)から外れてしまうことがある。このため、フィルムアンテナとケーブルとを備えたアンテナ装置においては、ケーブルの引っ張りに対する耐久性(接続信頼性)を高めることが重要である。 By the way, high-frequency current input / output to / from the film antenna is performed using a cable (for example, a coaxial cable) connected to a power feeding unit including two connection points. The film antenna and the cable are usually connected by soldering two connection points provided on the antenna conductor of the film antenna and the hot side / cold side conductor of the cable (inner side / outer side conductor of the coaxial cable). Yes. For this reason, when the cable is pulled with a strong force, the gable may be disconnected from the feeding portion (two connection points) of the film antenna. For this reason, in an antenna device including a film antenna and a cable, it is important to improve durability against cable pulling (connection reliability).
 ケーブルの引っ張りに対する耐久性を高めるために利用可能な技術としては、例えば、特許文献1に記載の保持部材が知られている。特許文献1では、保持部材に形成された溝にケーブルを嵌め込み、保持部材でケーブルを保持することで、ケーブルの一端を引っ張ってもその力が他端に伝わり難いようにしている。したがって、この保持部材にフィルムアンテナに接続されたケーブルを保持させれば、ケーブルの引っ張りに対する耐久性を高めることができる。 For example, a holding member described in Patent Document 1 is known as a technique that can be used to increase durability against cable pulling. In Patent Document 1, a cable is fitted into a groove formed in a holding member, and the cable is held by the holding member so that even if one end of the cable is pulled, the force is not easily transmitted to the other end. Therefore, if the holding member holds the cable connected to the film antenna, durability against cable pulling can be enhanced.
ヨーロッパ特許第2403327号明細書(2012年1月4日公開)European Patent No. 2403327 (published January 4, 2012)
 しかしながら、特許文献1に記載の保持部材は、ケーブルの引っ張りに対する耐久性を高めるという機能は有しているものの、アンテナ導体の立体構造を維持するという機能は有していない。したがって、フィルムアンテナに接続されたケーブルを特許文献1に記載の保持部材により保持するだけでは、アンテナ特性を一定化することはできない。また、アンテナ導体の立体構造を維持するために、フィルムアンテナを貼り付けたり巻き付けたりする支持体を特許文献1に記載の保持部材と併用する場合、構造の複雑化や大型化などの問題を招来する。 However, although the holding member described in Patent Document 1 has a function of enhancing durability against cable pulling, it does not have a function of maintaining the three-dimensional structure of the antenna conductor. Therefore, the antenna characteristics cannot be made constant simply by holding the cable connected to the film antenna by the holding member described in Patent Document 1. In addition, in order to maintain the three-dimensional structure of the antenna conductor, when a support body on which the film antenna is attached or wound is used together with the holding member described in Patent Document 1, problems such as a complicated structure and an increase in size are caused. To do.
 本発明は、上記の課題に鑑みてなされたものであり、その目的は、フィルムアンテナと、このフィルムアンテナに接続されたケーブルとを備えたアンテナ装置において、構造の複雑化や大型化を招来することになく、アンテナ特性の一定性とケーブルの引っ張りに対する耐久性とを高めることにある。 The present invention has been made in view of the above problems, and an object of the present invention is to increase the complexity and size of the structure of an antenna device including a film antenna and a cable connected to the film antenna. In other words, it is to improve the uniformity of antenna characteristics and durability against cable pulling.
 上記の課題を解決するために、本発明に係るアンテナ装置は、フィルムアンテナと、前記フィルムアンテナの給電部に接続されたケーブルと、前記フィルムアンテナの少なくとも一部分が巻き付けられた支持体と、を備え、前記支持体は、前記ケーブルを保持するための保持手段を有している、ことを特徴とする。 In order to solve the above problems, an antenna device according to the present invention includes a film antenna, a cable connected to a feeding portion of the film antenna, and a support around which at least a part of the film antenna is wound. The support has a holding means for holding the cable.
 本発明は、フィルムアンテナと、このフィルムアンテナに接続されたケーブルとを備えたアンテナ装置において、構造の複雑化や大型化を招来することになく、アンテナ特性の一定性とケーブルの引っ張りに対する耐久性とを高めることができる。 The present invention relates to an antenna device including a film antenna and a cable connected to the film antenna, and does not cause a complicated structure or an increase in size, and the antenna characteristics are constant and the cable is durable against pulling. And can be enhanced.
第1の実施形態に係るアンテナ装置の斜視図である。1 is a perspective view of an antenna device according to a first embodiment. 図1に示すアンテナ装置が備える支持体の斜視図である。It is a perspective view of the support body with which the antenna apparatus shown in FIG. 1 is provided. 図1に示すアンテナ装置が備えるフィルムアンテナの平面図である。It is a top view of the film antenna with which the antenna apparatus shown in FIG. 1 is provided. (a)は、図1に示すアンテナ装置が備えているフィルムアンテナとケーブルの斜視図である。(b)は、アンテナ装置が備えているフィルムアンテナの斜視図である。(A) is a perspective view of the film antenna and cable with which the antenna apparatus shown in FIG. 1 is equipped. (B) is a perspective view of the film antenna with which the antenna apparatus is provided. (a)は、第1の実施形態に係るアンテナ装置が備えている樹脂モールド部の変形例の斜視図である。(b)は、(a)に示した樹脂モールド部の左側面を示す側面図である。(A) is a perspective view of the modification of the resin mold part with which the antenna apparatus which concerns on 1st Embodiment is provided. (B) is a side view which shows the left side surface of the resin mold part shown to (a). (a)~(d)は、それぞれ、図1に示すアンテナ装置の平面図、正面図、右側面図、及び底面図である。(A) to (d) are a plan view, a front view, a right side view, and a bottom view of the antenna device shown in FIG. 1, respectively. (a)は、第2の実施形態に係るアンテナ装置を内蔵するスポイラーを搭載した車体の斜視図である。(b)は、当該スポイラーの斜視図である。(A) is a perspective view of the vehicle body carrying the spoiler which incorporates the antenna device which concerns on 2nd Embodiment. (B) is a perspective view of the spoiler. (a)は、第2の実施形態に係るアンテナ装置の斜視図である。(b)は、当該アンテナ装置の分解斜視図である。(A) is a perspective view of the antenna device which concerns on 2nd Embodiment. (B) is an exploded perspective view of the antenna device. 第2の実施形態に係るアンテナ装置が備えるフィルムアンテナの平面図である。It is a top view of the film antenna with which the antenna apparatus which concerns on 2nd Embodiment is provided. (a)は、第2の実施形態に係るアンテナ装置が備える支持体の拡大平面図である。(b)は、当該支持体の拡大斜視図である。(A) is an enlarged plan view of the support body with which the antenna apparatus which concerns on 2nd Embodiment is provided. (B) is an enlarged perspective view of the support. 参考例のアンテナ装置のVSWR及び平均利得の周波数依存性を示すグラフである。It is a graph which shows the frequency dependence of VSWR and the average gain of the antenna apparatus of a reference example. 第1実施例のアンテナ装置のVSWR及び平均利得の周波数依存性を示すグラフである。It is a graph which shows the frequency dependence of VSWR and average gain of the antenna apparatus of 1st Example. 第2実施例のアンテナ装置のVSWR及び平均利得の周波数依存性を示すグラフである。It is a graph which shows the frequency dependence of VSWR and the average gain of the antenna apparatus of 2nd Example. 第3実施例のアンテナ装置のVSWR及び平均利得の周波数依存性を示すグラフである。It is a graph which shows the frequency dependence of VSWR and average gain of the antenna apparatus of 3rd Example. (a)は、第3の実施形態に係るアンテナ装置が備えている支持体の斜視図である。(b)は、第3の実施形態に係るアンテナ装置の斜視図である。(A) is a perspective view of the support body with which the antenna apparatus which concerns on 3rd Embodiment is provided. (B) is a perspective view of the antenna device which concerns on 3rd Embodiment. 第3の実施形態に係るアンテナ装置の製造方法の説明図である。It is explanatory drawing of the manufacturing method of the antenna device which concerns on 3rd Embodiment. (a)は、第3の実施形態に係るアンテナ装置の変形例が備えている支持体の第3支持面の平面図である。(b)は、第2の実施形態に係るアンテナ装置の変形例の拡大断面図である。(A) is a top view of the 3rd support surface of the support body with which the modification of the antenna device which concerns on 3rd Embodiment is provided. (B) is an expanded sectional view of the modification of the antenna device which concerns on 2nd Embodiment. 図1に示すアンテナ装置をスポイラーに収納する方法を示す図である。It is a figure which shows the method of accommodating the antenna apparatus shown in FIG. 1 in a spoiler. 第4の実施形態に係るアンテナ装置の斜視図及び平面図である。It is the perspective view and top view of an antenna device which concern on 4th Embodiment. 図19に示すアンテナ装置をスポイラーに収納する方法を示す図である。It is a figure which shows the method of accommodating the antenna apparatus shown in FIG. 19 in a spoiler.
 ≪第1の実施形態≫
 〔アンテナ装置の構成〕
 本発明の第1の実施形態に係るアンテナ装置1の構成について、図1~図3を参照して説明する。図1は、アンテナ装置1の斜視図である。図2の(a)は、アンテナ装置1が備える支持体30の上面側斜視図であり、図2の(b)は、この支持体30の下面側斜視図である。図3は、アンテナ装置1が備えるフィルムアンテナ10の平面図である。
<< First Embodiment >>
[Configuration of antenna device]
The configuration of the antenna device 1 according to the first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view of the antenna device 1. 2A is a top perspective view of the support 30 included in the antenna device 1, and FIG. 2B is a bottom perspective view of the support 30. FIG. 3 is a plan view of the film antenna 10 included in the antenna device 1.
 また本明細書において、アンテナ装置の「上、下、左、右、前、後」は、各図面のxyz座標系に基づき、「z軸正方向を上」、「z軸負方向を下」、「y軸正方向を右」、「y軸負方向を左」、「x軸正方向を後」、「x軸負方向を前」として説明する。したがって、車体等へ搭載した状態におけるアンテナ装置の、上下、左右及び前後と必ずしも一致するものではない。 Further, in this specification, “up, down, left, right, front, rear” of the antenna device means “up on z-axis positive direction” and “down on z-axis negative direction” based on the xyz coordinate system of each drawing. , “Y axis positive direction is right”, “y axis negative direction is left”, “x axis positive direction is rear”, and “x axis negative direction is front”. Therefore, the antenna device in a state where it is mounted on the vehicle body or the like does not necessarily coincide with the top, bottom, left and right, and front and rear.
 アンテナ装置1は、図1に示すように、フィルムアンテナ10と、同軸ケーブル20と、支持体30とを備えている。フィルムアンテナ10は、所定の立体構造を取るように、支持体30に巻き付けられている。また、フィルムアンテナ10の2つの接続点14a,14bからなる給電部14に接続された同軸ケーブル20は、所定の配線経路を通るように、支持体30に保持されている。 The antenna device 1 includes a film antenna 10, a coaxial cable 20, and a support 30 as shown in FIG. The film antenna 10 is wound around the support 30 so as to have a predetermined three-dimensional structure. Further, the coaxial cable 20 connected to the power feeding unit 14 including the two connection points 14a and 14b of the film antenna 10 is held by the support 30 so as to pass through a predetermined wiring path.
 支持体30は、第1支持面31と、第1支持面31と交わる(本実施形態においては直交する)第2支持面32と、第1支持面31と対向し、第2支持面32と交わる(本実施形態においては直交する)第3支持面33とを有する構造物である。フィルムアンテナ10は、その表面又は裏面が第1支持面31、第2支持面32、及び第3支持面33と接触するように、支持体30に巻き付けられる。 The support 30 includes a first support surface 31, a second support surface 32 that intersects with the first support surface 31 (orthogonal in the present embodiment), the first support surface 31, and the second support surface 32. It is a structure having a third support surface 33 that intersects (orthogonally in the present embodiment). The film antenna 10 is wound around the support 30 so that the front surface or the back surface thereof is in contact with the first support surface 31, the second support surface 32, and the third support surface 33.
 本実施形態においては、図2に示す箱型の樹脂成形物を支持体30として用い、その上面を第1支持面31、その後側面(図示した座標系においてx軸正方向側の側面)を第2支持面32、その下面を第3支持面33とする。この樹脂成型物は、上面側から肉抜きされているため、肉抜きされずに残った隔壁の上端面(図2の(a)において斜線によるハッチングを付した部分)が第1支持面31を構成する。支持体30の第3支持面33は、第1支持面31よりも前方(図示した座標系においてx軸負方向)に突出しており、第1支持面31が形成された領域に対向する対向領域33aと第1支持面31が形成された領域に対向しない非対向領域33bとに二分される。 In the present embodiment, the box-shaped resin molded product shown in FIG. 2 is used as the support 30, the upper surface is the first support surface 31, and the rear side surface (the side surface on the x-axis positive direction side in the illustrated coordinate system) The second support surface 32 and its lower surface are referred to as a third support surface 33. Since this resin molded product is thinned from the upper surface side, the upper end surface of the partition wall that remains without being thinned (the hatched portion in FIG. 2A) hatches the first support surface 31. Constitute. The third support surface 33 of the support 30 protrudes forward (the negative x-axis direction in the illustrated coordinate system) from the first support surface 31 and is opposed to the region where the first support surface 31 is formed. 33a and a non-opposing region 33b that does not face the region where the first support surface 31 is formed.
 支持体30は、所定の配線経路を通るように同軸ケーブル20を保持することによって、同軸ケーブル20の引っ張りに対する耐久性を高めるための保持手段として、第1保持部34、第2保持部35、及び第3保持部36を備えている。 The support 30 holds the coaxial cable 20 so as to pass through a predetermined wiring path, and as a holding means for enhancing durability against pulling of the coaxial cable 20, a first holding part 34, a second holding part 35, And the 3rd holding | maintenance part 36 is provided.
 また、支持体30の第3支持面33には第1の凹部37と、この第1の凹部37と連通して第3支持面33の端部へ向かって延びる第2の凹部38とが形成されている。第1及び第2の凹部37,38は、本発明における凹状収容部に相当し、同軸ケーブル20の端部と給電部14との接続部分が収容されるとともに、そこから延びる同軸ケーブル20が挿通する。なお本実施形態において、同軸ケーブル20の端部と給電部14との接続部分は、後述する樹脂モールド部21により覆われている(図4参照)。 The third support surface 33 of the support 30 is formed with a first recess 37 and a second recess 38 that communicates with the first recess 37 and extends toward the end of the third support surface 33. Has been. The first and second concave portions 37 and 38 correspond to the concave accommodating portion in the present invention, and accommodate the connection portion between the end portion of the coaxial cable 20 and the power feeding portion 14, and the coaxial cable 20 extending therefrom is inserted therethrough. To do. In the present embodiment, the connection portion between the end portion of the coaxial cable 20 and the power feeding portion 14 is covered with a resin mold portion 21 described later (see FIG. 4).
 第1の凹部37は、第3支持面33のうち、第3支持面33と第2支持面32との境界近傍に形成された凹部であって、第3及び第2支持面の境界に沿う方向(図示した座標系においてy軸方向)に延在する長尺形状の凹部であり、第3支持面33から第1支持面31へ向かう方向(図示した座標系においてz軸正方向)へ凹んだ凹部である。 The first recess 37 is a recess formed in the vicinity of the boundary between the third support surface 33 and the second support surface 32 in the third support surface 33, and extends along the boundary between the third and second support surfaces. It is a long recess extending in the direction (y-axis direction in the illustrated coordinate system), and is recessed in the direction from the third support surface 33 toward the first support surface 31 (z-axis positive direction in the illustrated coordinate system). It is a recess.
 そして、第1の凹部37は、後述する樹脂モールド部21(同軸ケーブル20の端部と給電部14との接続部分を覆う樹脂成形物)を収容可能な大きさを有する。 And the 1st recessed part 37 has a magnitude | size which can accommodate the resin mold part 21 (The resin molding which covers the connection part of the edge part of the coaxial cable 20, and the electric power feeding part 14) mentioned later.
 第2の凹部38は、第2の凹部38は第1の凹部37よりも幅が小さい凹部であって、一方の端部が第1の凹部37と連通し、他方の端部が第3支持面33の端部まで延びる。また第1の凹部37と同様に、第3及び第2支持面32の境界に沿う方向(図示した座標系においてy軸方向)に延在する凹部であり、第3支持面33から第1支持面31へ向かう方向(図示した座標系においてz軸正方向)へ凹んだ凹部である。 The second concave portion 38 is a concave portion whose width is smaller than that of the first concave portion 37, one end portion communicating with the first concave portion 37, and the other end portion supporting the third. It extends to the end of the surface 33. Similarly to the first concave portion 37, the concave portion extends in the direction along the boundary between the third and second support surfaces 32 (y-axis direction in the illustrated coordinate system) and is supported from the third support surface 33 to the first support. The concave portion is recessed in the direction toward the surface 31 (z-axis positive direction in the illustrated coordinate system).
 そして、第2の凹部38は、第1の凹部37に収容された樹脂モールド部21から延びる同軸ケーブル20が挿通可能な大きさを有する。 And the 2nd recessed part 38 has a magnitude | size which the coaxial cable 20 extended from the resin mold part 21 accommodated in the 1st recessed part 37 can be penetrated.
 アンテナ装置1において、フィルムアンテナ10は、同軸ケーブル20の端部と給電部14との接続部分が、第3支持面33における第2支持面32との境界近傍に設けられた第1及び第2の凹部37,38に収容されるように、支持体30に取り付けられ、さらに、第1支持面31、第2支持面32及び第3支持面33に接触するように、支持体30に巻き付けられている。このとき、フィルムアンテナ10は、その一端(後述する第1アンテナ導体12側の端辺)が、第1支持面31の第2支持面32側とは反対側の端部に配置されるとともに、その他端が、第3支持面33の第2支持面32側とは反対側の端部よりも前方に向かって延出するようにして、支持体30に巻き付けられている。 In the antenna device 1, the film antenna 10 includes a first and a second connecting portion between the end portion of the coaxial cable 20 and the feeding portion 14 provided in the vicinity of the boundary between the third supporting surface 33 and the second supporting surface 32. It is attached to the support body 30 so as to be accommodated in the recesses 37 and 38, and is further wound around the support body 30 so as to contact the first support surface 31, the second support surface 32, and the third support surface 33. ing. At this time, the film antenna 10 has one end (an end side on the first antenna conductor 12 side, which will be described later) disposed at the end of the first support surface 31 opposite to the second support surface 32 side, The other end of the third support surface 33 is wound around the support body 30 so as to extend forward from the end of the third support surface 33 opposite to the second support surface 32 side.
 第1保持部34は、第1支持面31の第2支持面32側とは反対側の端部から前方に突出した領域に設けられている。すなわち、第3支持面33の非対向領域33bの上面側(図示した座標系においてz軸正方向側)に設けられている。この第1保持部34は、同軸ケーブル20の一部を、第1支持面31及び第2支持面32の双方に対して沿う(本実施形態においては平行な)方向(図示した座標系においてy軸方向)に延在するように保持する。第1保持部34は、フィルムアンテナ10の第1支持面31に接触する領域とフィルムアンテナ10の第3支持面33に接触する領域とに挟まれた空間領域の外部に設けられているので、フィルムアンテナ10を支持体30に巻き付けた後でも同軸ケーブル20を第1保持部34に装着することが可能である。 The first holding portion 34 is provided in a region protruding forward from the end portion of the first support surface 31 opposite to the second support surface 32 side. That is, it is provided on the upper surface side (the z-axis positive direction side in the illustrated coordinate system) of the non-facing region 33b of the third support surface 33. The first holding portion 34 is configured so that a part of the coaxial cable 20 extends along both the first support surface 31 and the second support surface 32 (parallel in the present embodiment) (in the illustrated coordinate system, y (Axial direction) so as to extend. Since the first holding part 34 is provided outside the space region sandwiched between the region in contact with the first support surface 31 of the film antenna 10 and the region in contact with the third support surface 33 of the film antenna 10, Even after the film antenna 10 is wound around the support 30, the coaxial cable 20 can be attached to the first holding portion 34.
 本実施形態においては、その壁面が第3支持面33及び第2支持面32の双方に対して垂直になるように配置された複数の(本実施形態においては4つの)隔壁34aと、この隔壁34aに形成された上方が開口した凹部34b(スリット)とを保持部34として用いる。この隔壁34aの凹部34bに同軸ケーブル20を嵌め込むことによって、上述したような同軸ケーブル20の保持(挟持)が実現される。また、第1保持部34で保持した同軸ケーブル20を蛇行させ、同軸ケーブル20が第1保持部34から抜け難くするために、本実施形態においては、その壁面が隔壁34aの壁面と平行になるように配置された隔壁34cを用いている。この隔壁34cの前方の端面は、下方に向かうほど前方に迫り出すように傾斜している。このため、同軸ケーブル20を隔壁34aの凹部34bに深く嵌め込むと、同軸ケーブル20は、中央部がこの隔壁34cによって前方に押し出されることによって蛇行し、より強く隔壁34aに押し付けられる。このため、同軸ケーブル20が隔壁34aから受ける摩擦力が大きくなり、同軸ケーブル20が抜け難くなる。 In the present embodiment, a plurality of (four in the present embodiment) partition walls 34a disposed so that the wall surfaces thereof are perpendicular to both the third support surface 33 and the second support surface 32, and the partition walls A concave portion 34b (slit) formed in the upper portion 34a is used as the holding portion 34. By fitting the coaxial cable 20 into the recess 34b of the partition wall 34a, the above-described holding (clamping) of the coaxial cable 20 is realized. Further, in order to make the coaxial cable 20 held by the first holding part 34 meander and make it difficult for the coaxial cable 20 to come out of the first holding part 34, in this embodiment, the wall surface is parallel to the wall surface of the partition wall 34a. The partition wall 34c arranged as described above is used. The front end face of the partition wall 34c is inclined so as to protrude forward as it goes downward. For this reason, when the coaxial cable 20 is fitted deeply into the recess 34b of the partition wall 34a, the coaxial cable 20 meanders by being pushed forward by the partition wall 34c, and is more strongly pressed against the partition wall 34a. For this reason, the frictional force that the coaxial cable 20 receives from the partition wall 34a increases, and the coaxial cable 20 is difficult to come off.
 第2保持部35は、支持体30の左側面(図示した座標系においてy軸負方向側の側面)に設けられている。この第2保持部35は、同軸ケーブル20の一部を、第2支持面32に対して垂直な方向(図示した座標系においてx軸方向)に延在するように保持する。そして、第2保持部材35は、第3支持面33の第2支持面32との境界近傍に形成された凹状収容部(第1及び第2の凹部37,38)に収容された樹脂モールド部21から延びる同軸ケーブル20を屈曲させて前方(第2支持面32とは反対側の端部)へ向けてガイドし、同軸ケーブル20を第1保持部材34に導くように機能する。 The second holding portion 35 is provided on the left side surface of the support 30 (the side surface on the y-axis negative direction side in the illustrated coordinate system). The second holding unit 35 holds a part of the coaxial cable 20 so as to extend in a direction perpendicular to the second support surface 32 (x-axis direction in the illustrated coordinate system). And the 2nd holding member 35 is the resin mold part accommodated in the concave shape accommodating part (1st and 2nd recessed part 37,38) formed in the boundary vicinity with the 2nd support surface 32 of the 3rd support surface 33. As shown in FIG. The coaxial cable 20 extending from 21 is bent and guided toward the front (the end opposite to the second support surface 32), and functions to guide the coaxial cable 20 to the first holding member 34.
 第2保持部35は、フィルムアンテナ10の第1支持面31に接触する領域とフィルムアンテナ10の第3支持面33に接触する領域とに挟まれた空間領域の外部に設けられているので、フィルムアンテナ10を支持体30に巻き付けた後でも同軸ケーブル20を第2保持部35に装着することが可能である。 Since the second holding portion 35 is provided outside the space region sandwiched between the region in contact with the first support surface 31 of the film antenna 10 and the region in contact with the third support surface 33 of the film antenna 10, Even after the film antenna 10 is wound around the support 30, the coaxial cable 20 can be attached to the second holding portion 35.
 本実施形態においては、支持体30の左側面の下端から左方に突出した直方体状の突出部35aを第2保持部35として用いる。この突出部35aには、第2支持面32側の端面からその反対側の端面に至る、下方が開口した凹部35bが形成されており、この凹部35bに同軸ケーブル20を嵌め込むことによって、上述したような同軸ケーブル20の保持が実現される。 In the present embodiment, a rectangular parallelepiped protruding portion 35 a protruding leftward from the lower end of the left side surface of the support 30 is used as the second holding portion 35. The protruding portion 35a is formed with a recessed portion 35b that opens from the end surface on the second support surface 32 side to the opposite end surface. By fitting the coaxial cable 20 into the recessed portion 35b, the above-described concave portion 35b is inserted. Such holding of the coaxial cable 20 is realized.
 第3保持部36は、支持体30の右側面(図示した座標系においてy軸正向側の側面)に設けられている。この第3保持部36は、同軸ケーブル20の一部を、第2支持面32に対して垂直な方向(図示した座標系においてx軸方向)に延在するように保持する。そして、第3保持部材36は、第1保持部材34から延出する同軸ケーブル20を屈曲させて前方へ向けてガイドする。第3保持部36は、フィルムアンテナ10の第1支持面31に接触する領域とフィルムアンテナ10の第3支持面33に接触する領域とに挟まれた空間領域の外部に設けられているので、フィルムアンテナ10を支持体30に巻き付けた後でも同軸ケーブル20を第3保持部36に装着することが可能である。 The third holding portion 36 is provided on the right side surface of the support 30 (the side surface on the y-axis positive side in the illustrated coordinate system). The third holding unit 36 holds a part of the coaxial cable 20 so as to extend in a direction perpendicular to the second support surface 32 (x-axis direction in the illustrated coordinate system). Then, the third holding member 36 bends the coaxial cable 20 extending from the first holding member 34 and guides it forward. Since the third holding portion 36 is provided outside the space region sandwiched between the region in contact with the first support surface 31 of the film antenna 10 and the region in contact with the third support surface 33 of the film antenna 10, Even after the film antenna 10 is wound around the support 30, the coaxial cable 20 can be attached to the third holding portion 36.
 本実施形態においては、支持体30の右側面の下端から右方に突出した直方体状の突出部36aを第3保持部36として用いる。この突出部36aには、第2支持面32側の端面からその反対側の端面に至る、下方が開口した凹部36bが形成されており、この凹部36bに同軸ケーブル20を嵌め込むことによって、上述したような同軸ケーブル20の保持が実現される。 In the present embodiment, a rectangular parallelepiped protruding portion 36a protruding rightward from the lower end of the right side surface of the support 30 is used as the third holding portion 36. The projecting portion 36a is formed with a recess 36b that opens from the end surface on the second support surface 32 side to the end surface on the opposite side. By fitting the coaxial cable 20 into the recess 36b, the above-described recess 36b is inserted. Such holding of the coaxial cable 20 is realized.
 上述したように、本実施形態においては、支持体30の第3支持面33に、フィルムアンテナ10を巻き付けたときに、同軸ケーブル20の端部と給電部14との接続部分(樹脂モールド部21で覆われた部分)を収容するための第1及び第2凹部37,38が形成されている。そして、支持体30の第3支持面33と反対側の面(第1支持面31側)に、同軸ケーブル20を保持するための第1保持部材34が形成されている。また、支持体30は、更に2つの保持部材(第2及び第3保持部材35,36)を有する。これら第2及び第3保持部材35,36は、第1保持部材34が形成された面と反対側に開口する凹部35b,36bを備え、支持体30の左側面及び右側面にそれぞれ配置されている。 As described above, in the present embodiment, when the film antenna 10 is wound around the third support surface 33 of the support 30, the connection portion (resin mold portion 21) between the end portion of the coaxial cable 20 and the power feeding portion 14. 1st and 2nd recessed part 37,38 for accommodating the part covered with (3) is formed. A first holding member 34 for holding the coaxial cable 20 is formed on the surface of the support 30 opposite to the third support surface 33 (on the first support surface 31 side). Further, the support 30 further has two holding members (second and third holding members 35 and 36). These second and third holding members 35, 36 are provided with recesses 35 b, 36 b that open on the opposite side to the surface on which the first holding member 34 is formed, and are respectively disposed on the left side surface and the right side surface of the support 30. Yes.
 第1支持面31(を構成する隔壁の上端面)には、L型突起31a及びI型突起31bが形成されている。L型突起31aは、第1支持面31から上方に延伸する第1柱状部と、第1柱状部の上端から前方に延伸する第2柱状部とにより構成されている。フィルムアンテナ10に形成された長方形の開口12c(図3参照)にL型突起31aを引っ掛けることによって、支持体30に対するフィルムアンテナ10の位置決めが図られるとともに、フィルムアンテナ10の第1支持面31に接触する部分を後方に引っ張っても(フィルムアンテナ10の第3支持面33に接触する部分を前方に引っ張っても)、フィルムアンテナ10が支持体30から離脱しなくなることが図られる。一方、I型突起31bは、第1支持面31から上方に延伸する柱状部により構成されている。フィルムアンテナ10に形成された円形の開口12d(図3参照)にI型突起31bを嵌合させることによって、支持体30に対するフィルムアンテナ10の位置決めが図られる。 L-type protrusions 31a and I-type protrusions 31b are formed on the first support surface 31 (the upper end surface of the partition walls). The L-shaped protrusion 31a includes a first columnar portion that extends upward from the first support surface 31 and a second columnar portion that extends forward from the upper end of the first columnar portion. The L-shaped protrusion 31a is hooked on the rectangular opening 12c (see FIG. 3) formed in the film antenna 10, whereby the film antenna 10 is positioned with respect to the support 30 and the first support surface 31 of the film antenna 10 is placed. Even if the contacting part is pulled backward (even if the part contacting the third support surface 33 of the film antenna 10 is pulled forward), the film antenna 10 can be prevented from being detached from the support 30. On the other hand, the I-shaped protrusion 31 b is configured by a columnar portion extending upward from the first support surface 31. By positioning the I-shaped protrusion 31b in a circular opening 12d (see FIG. 3) formed in the film antenna 10, the film antenna 10 is positioned with respect to the support 30.
 また、図2の(b)に示すようにz軸正方向が紙面の下向きになるように支持体30を配置した場合、第2支持面32の右端には、L型ガイド32aが形成されている。L型ガイド32aは、第2支持面32から後方に延伸する第1板状部と、第1板状部の後端から右方に延伸する第2板状部とにより構成されている。同様に、第2支持面32の左端には、L型ガイド32bが形成されている(図2の(b)参照)。L型ガイド32bは、第2支持面32から後方に延伸する第1板状部と、第1板状部の後端から左方に延伸する第2板状部とにより構成されている。フィルムアンテナ10の右端をL型ガイド32aの第2板状部と第2支持面32との間に挟み込み、フィルムアンテナ10の左端をL型ガイド32bの第2板状部と第2支持面32との間に挟み込むことによって、フィルムアンテナ10を第2支持面31に密着させることができる。 In addition, when the support body 30 is arranged so that the z-axis positive direction is downward with respect to the paper surface as shown in FIG. 2B, an L-shaped guide 32a is formed at the right end of the second support surface 32. Yes. The L-shaped guide 32a is composed of a first plate-like portion extending backward from the second support surface 32 and a second plate-like portion extending rightward from the rear end of the first plate-like portion. Similarly, an L-shaped guide 32b is formed at the left end of the second support surface 32 (see FIG. 2B). The L-shaped guide 32b includes a first plate-like portion extending backward from the second support surface 32 and a second plate-like portion extending leftward from the rear end of the first plate-like portion. The right end of the film antenna 10 is sandwiched between the second plate-shaped portion of the L-shaped guide 32a and the second support surface 32, and the left end of the film antenna 10 is sandwiched between the second plate-shaped portion of the L-shaped guide 32b and the second support surface 32. The film antenna 10 can be brought into close contact with the second support surface 31.
 さらに、第3支持面33には、I型突起33dが形成されている。I型突起33dは、第3支持面33から下方に延伸する柱状部により構成されている。フィルムアンテナ10に形成された円形の開口13a(図3参照)にI型突起33dを嵌合させることによって、支持体30に対するフィルムアンテナ10の位置決めが図られる。また、第3支持面33の前端には、ガイドリング33cが形成されている(図2の(a)参照)。フィルムアンテナ10をこのガイドリング33cに通すことによって、フィルムアンテナ10を第3支持面33に沿わせるように支持することができる。すなわち、フィルムアンテナ10は、ガイドリング33cを貫通し、また、ガイドリング33cによって支持されている。 Furthermore, an I-type protrusion 33 d is formed on the third support surface 33. The I-type protrusion 33d is constituted by a columnar portion extending downward from the third support surface 33. By positioning the I-shaped protrusion 33d in a circular opening 13a (see FIG. 3) formed in the film antenna 10, the film antenna 10 is positioned with respect to the support 30. A guide ring 33c is formed at the front end of the third support surface 33 (see FIG. 2A). The film antenna 10 can be supported along the third support surface 33 by passing the film antenna 10 through the guide ring 33c. That is, the film antenna 10 penetrates the guide ring 33c and is supported by the guide ring 33c.
 なお、支持体30を構成する材料の一例としては、ポリカーボネート樹脂(PC樹脂)とアクリロニトリル、ブタジエン、スチレン共重合合成樹脂(ABS樹脂)とを混合したPC-ABS樹脂が挙げられるが、これに限定されるものではない。 An example of the material constituting the support 30 is a PC-ABS resin in which a polycarbonate resin (PC resin) is mixed with acrylonitrile, butadiene, and a styrene copolymer synthetic resin (ABS resin), but is not limited thereto. Is not to be done.
 〔フィルムアンテナ10〕
 フィルムアンテナ10は、図3に示すように、誘電体フィルム11と、この誘電体フィルム11の表面にパターンとして形成された1対のアンテナ導体12,13を備えている。
[Film antenna 10]
As shown in FIG. 3, the film antenna 10 includes a dielectric film 11 and a pair of antenna conductors 12 and 13 formed as a pattern on the surface of the dielectric film 11.
 第1アンテナ導体12には、同軸ケーブル20の内側導体(ホット側導体)が接続される第1接続点14aが設けられている。一方、第2アンテナ導体13には、同軸ケーブル20の外側導体(コールド側導体)が接続される第2接続点14bが設けられている。第1接続点14a及び第2接続点14bは、フィルムアンテナ10の給電部14を構成している。なお、図示を省略するが、フィルムアンテナ10の給電部14(第1及び第2接続点14a,14b)には、同軸ケーブル20の端部が接続されている。具体的には、第1接続点14aに同軸ケーブル20の内側導体を半田付けすることにより接続し、第2接続点14bに同軸ケーブル20の外側導体を半田付けすることにより接続している。 The first antenna conductor 12 is provided with a first connection point 14a to which the inner conductor (hot-side conductor) of the coaxial cable 20 is connected. On the other hand, the second antenna conductor 13 is provided with a second connection point 14b to which the outer conductor (cold side conductor) of the coaxial cable 20 is connected. The first connection point 14 a and the second connection point 14 b constitute the power feeding unit 14 of the film antenna 10. In addition, although illustration is abbreviate | omitted, the edge part of the coaxial cable 20 is connected to the electric power feeding part 14 (1st and 2nd connection point 14a, 14b) of the film antenna 10. FIG. Specifically, the inner conductor of the coaxial cable 20 is connected to the first connection point 14a by soldering, and the outer conductor of the coaxial cable 20 is connected to the second connection point 14b by soldering.
 第1アンテナ導体12及び第2アンテナ導体13は、前者及び後者を放射素子とするダイポールアンテナ、又は、前者を放射素子とし後者を地板とするモノポールアンテナを構成する。 The first antenna conductor 12 and the second antenna conductor 13 constitute a dipole antenna having the former and the latter as radiating elements, or a monopole antenna having the former as a radiating element and the latter as a ground plane.
 本実施形態においては、長方形の短辺を介して隣接する2つの角を四分楕円12a,12bで置き換えた釣鐘形の導体箔(例えば、銅箔)を第1アンテナ導体12として用いる。この第1アンテナ導体12の四分楕円12a,12bに挟まれた辺には凸部が設けられており、上述した第1接続点14aは、この凸部に配置される。また、本実施形態においては、長方形の導体箔(例えば、銅箔)を第2アンテナ導体13として用いる。この第2アンテナ導体13の短辺には凹部が設けられており、上述した第2接続点14bは、この凹部の近傍に配置される。第1アンテナ導体12と第2アンテナ導体13とは、前者の凸部が後者の凹部に入り込むように組み合わせられており、第1接続点14aと第2接続点14bとは、第1アンテナ導体12と第2アンテナ導体13との隙間を介して互いに対向する。 In this embodiment, a bell-shaped conductor foil (for example, a copper foil) in which two corners adjacent to each other through a rectangular short side are replaced with quadrants 12a and 12b is used as the first antenna conductor 12. A convex portion is provided on a side between the quadrant ellipses 12 a and 12 b of the first antenna conductor 12, and the first connection point 14 a described above is disposed on the convex portion. In the present embodiment, a rectangular conductor foil (for example, copper foil) is used as the second antenna conductor 13. A concave portion is provided on the short side of the second antenna conductor 13, and the second connection point 14b described above is disposed in the vicinity of the concave portion. The first antenna conductor 12 and the second antenna conductor 13 are combined so that the former convex portion enters the latter concave portion, and the first connection point 14 a and the second connection point 14 b are the first antenna conductor 12. And the second antenna conductor 13 are opposed to each other through a gap.
 なお、第2アンテナ導体13の第1アンテナ導体12に近接する端部には、後述する樹脂モールド部21とフィルムアンテナ10との接着強度を向上させるための開口13bが形成されている。フィルムアンテナ10の給電部14と、この給電部14に接続された同軸ケーブル端部とを覆う樹脂モールド部21を、この開口13bを含む領域に形成することによって、樹脂モールド部21を形成する樹脂材が開口13を介してフィルムアンテナ10の表面及び裏面にいきわたり、樹脂モールド部21とフィルムアンテナ10の接着強度を向上させることができる。 Note that an opening 13b for improving the adhesive strength between a resin mold portion 21 and a film antenna 10, which will be described later, is formed at an end portion of the second antenna conductor 13 that is close to the first antenna conductor 12. Resin which forms resin mold part 21 by forming resin mold part 21 which covers feeding part 14 of film antenna 10 and a coaxial cable end connected to this feeding part 14 in a field containing this opening 13b The material can reach the front and back surfaces of the film antenna 10 through the opening 13, and the adhesive strength between the resin mold portion 21 and the film antenna 10 can be improved.
 フィルムアンテナ10は、第1アンテナ導体12を横断する直線AA’、及び、第1アンテナ導体12と第2アンテナ導体13との間を横断する直線BB’を稜線としてU字型に折り曲げることによって、支持体30に巻き付けられる。すなわち、支持体30に巻き付けられたフィルムアンテナ10には、支持体30の第1及び第2支持面31,32の境界に沿って直線AA´で折り曲がる曲部と、第2及び第3支持面32,33の境界に沿って直線BB´で折り曲がる曲部とが形成されている。 The film antenna 10 is bent in a U shape with a straight line AA ′ crossing the first antenna conductor 12 and a straight line BB ′ crossing between the first antenna conductor 12 and the second antenna conductor 13 as ridge lines, It is wound around the support 30. That is, the film antenna 10 wound around the support 30 has a bent portion that is bent along a straight line AA ′ along the boundary between the first and second support surfaces 31 and 32 of the support 30, and the second and third supports. A curved portion that is bent along a straight line BB ′ is formed along the boundary between the surfaces 32 and 33.
 この際、第1アンテナ導体12側の端辺から直線AA’までの領域10a(第1領域:第1アンテナ導体12の主要部)が支持体30の第1支持面31に接触し、直線AA’から直線BB’までの領域10b(第2領域)が支持体30の第2支持面32に接触し、直線BB’から第2アンテナ導体13を横断する直線CC’(第3領域:第2アンテナ導体13の主要部)までの領域10cが支持体30の第3支持面33に接触する。なお、CC’直線から第2アンテナ導体13側の端辺までの領域10dは、支持体30の何れの面にも接触しない。 At this time, a region 10a (first region: a main portion of the first antenna conductor 12) from the end on the first antenna conductor 12 side to the straight line AA ′ comes into contact with the first support surface 31 of the support 30 and the straight line AA. A region 10b (second region) from 'to the straight line BB' is in contact with the second support surface 32 of the support 30, and a straight line CC '(third region: second region) crossing the second antenna conductor 13 from the straight line BB'. The region 10 c to the main portion of the antenna conductor 13 is in contact with the third support surface 33 of the support 30. Note that the region 10 d from the CC ′ straight line to the end on the second antenna conductor 13 side does not contact any surface of the support 30.
 なお、誘電体フィルム11を構成する材料の一例としては、ポリイミドが挙げられ、1対のアンテナ導体12,13を構成する材料の一例としては、銅が挙げられる。折り曲げられたフィルムアンテナ10を支持体30の第1~第3支持面31~33の各々にフィットさせ、フィルムアンテナ10と支持体30との間に隙間が生じることを防止するために、フィルムアンテナ10は、高い柔軟性を有することが好ましい。したがって、誘電体フィルム11及びアンテナ導体12,13の厚さは、何れも薄いことが好ましい。例えば、アンテナ導体12,13として、厚さが20μmである銅箔を採用し、(2)誘電体フィルム11として、一方の表面に接着剤が塗布されたポリイミドフィルムであって、接着剤を含めた厚さが35μmであるポリイミドフィルムを採用することができる。 An example of the material constituting the dielectric film 11 is polyimide, and an example of the material constituting the pair of antenna conductors 12 and 13 is copper. In order to fit the bent film antenna 10 to each of the first to third support surfaces 31 to 33 of the support 30 and prevent a gap from being generated between the film antenna 10 and the support 30, the film antenna 10 preferably has high flexibility. Therefore, the dielectric film 11 and the antenna conductors 12 and 13 are preferably thin. For example, a copper foil having a thickness of 20 μm is employed as the antenna conductors 12 and 13, and (2) a polyimide film having an adhesive applied to one surface as the dielectric film 11, including the adhesive A polyimide film having a thickness of 35 μm can be employed.
 また、フィルムアンテナ10は、アンテナ導体12,13の表面を覆う誘電体フィルムを更に備えていてもよい。すなわち、フィルムアンテナ10は、アンテナ導体12,13が2枚の誘電体フィルムによって挟持されている構成であってもよい。アンテナ導体12,13の両面を誘電体フィルムで覆うことによって、アンテナ導体12,13の損傷や劣化などを防止することができる。 The film antenna 10 may further include a dielectric film that covers the surfaces of the antenna conductors 12 and 13. That is, the film antenna 10 may have a configuration in which the antenna conductors 12 and 13 are sandwiched between two dielectric films. By covering both surfaces of the antenna conductors 12 and 13 with a dielectric film, damage or deterioration of the antenna conductors 12 and 13 can be prevented.
 〔樹脂モールド部21〕
 次に、図4を参照して、フィルムアンテナ10の給電部14と、この給電部14に接続された同軸ケーブルの端部とを覆う樹脂モールド部21について説明する。図4の(a)は、アンテナ装置1の斜視図であり、支持体30の図示を省略している。図4の(b)は、図4の(a)に示すアンテナ装置1が備えているフィルムアンテナ10の斜視図である。
[Resin mold part 21]
Next, with reference to FIG. 4, the resin mold part 21 which covers the electric power feeding part 14 of the film antenna 10 and the edge part of the coaxial cable connected to this electric power feeding part 14 is demonstrated. FIG. 4A is a perspective view of the antenna device 1, and illustration of the support 30 is omitted. FIG. 4B is a perspective view of the film antenna 10 provided in the antenna device 1 shown in FIG.
 図4の(a)に示すように、同軸ケーブル20の端部と給電部14との接続部分、及びその近傍には、同軸ケーブル20の内側導体及び外側導体、並びに、給電部14を隙間なく覆っている樹脂モールド部21が形成されている。樹脂モールド部21は、樹脂成形物からなる。この構成によれば、同軸ケーブル20の内側導体及び外側導体、並びに、給電部14が暴露されることを防止することができる。したがって、樹脂モールド部21によって同軸ケーブル20と給電部14との接続部分が防水され、大気中の水分などに起因して給電部14の半田が劣化することを防止し、フィルムアンテナ10の耐水性を向上させることができる。 As shown in FIG. 4A, the inner and outer conductors of the coaxial cable 20 and the feeder 14 are connected without gaps at the connection portion between the end of the coaxial cable 20 and the feeder 14 and in the vicinity thereof. The covering resin mold part 21 is formed. The resin mold part 21 consists of a resin molding. According to this configuration, it is possible to prevent the inner and outer conductors of the coaxial cable 20 and the power feeding unit 14 from being exposed. Therefore, the connection part between the coaxial cable 20 and the power feeding part 14 is waterproofed by the resin mold part 21, preventing the solder of the power feeding part 14 from being deteriorated due to moisture in the atmosphere, and the water resistance of the film antenna 10. Can be improved.
 また、図4の(b)に示すように、第2アンテナ導体13に開口13bが形成されていることによって、樹脂モールド部21の成形時に、樹脂モールド部21を形成する樹脂材が開口13bを介してフィルムアンテナ10の表面及び裏面にいきわたる。その結果、樹脂モールド部21は、フィルムアンテナ10を表面及び裏面から挟み込むとともに、開口13bを介して両面の樹脂が連結した形状に形成される。この構成によれば、樹脂モールド部21とフィルムアンテナ10との接着強度が向上し、フィルムアンテナ10から樹脂モールド部21が剥離するのを防止することができる。 Further, as shown in FIG. 4B, since the opening 13b is formed in the second antenna conductor 13, the resin material forming the resin mold portion 21 has the opening 13b when the resin mold portion 21 is molded. Through the front and back surfaces of the film antenna 10. As a result, the resin mold portion 21 is formed in a shape in which the film antenna 10 is sandwiched from the front surface and the back surface and the resins on both surfaces are connected through the opening 13b. According to this configuration, the adhesive strength between the resin mold part 21 and the film antenna 10 can be improved, and the resin mold part 21 can be prevented from peeling off from the film antenna 10.
 〔樹脂モールド部の変形例〕
 樹脂モールド部21の変形例である樹脂モールド部21αについて、図5を参照して説明する。図5の(a)は、樹脂モールド部21αを備えたアンテナ装置1の斜視図である。図5の(b)は、樹脂モールド部21αの右側面図(図示した座標系におけるy軸負方向側から矢視した場合に得られる側面図)である。なお、支持体30及び同軸ケーブル20の樹脂モールド部21α以外の部分(ケーブル部分)の図示を省略している。
[Modification of resin mold part]
A resin mold portion 21α, which is a modification of the resin mold portion 21, will be described with reference to FIG. (A) of FIG. 5 is a perspective view of the antenna apparatus 1 provided with the resin mold part 21α. FIG. 5B is a right side view of the resin mold portion 21α (a side view obtained when viewed from the y-axis negative direction side in the illustrated coordinate system). In addition, illustration of parts (cable parts) other than the support body 30 and the resin mold part 21α of the coaxial cable 20 is omitted.
 図5の(a),(b)に示すように、樹脂モールド部21αは、第1被覆部22αと、第2被覆部23αと、第3被覆部24とにより構成されている。第1被覆部22αは、フィルムアンテナ10の表面(図示した座標系におけるz軸正方向側の表面)に形成されており、第2被覆部23αは、フィルムアンテナ10の裏面(図示した座標系におけるz軸負方向側の表面)に形成されている。第3被覆部24は、同軸ケーブル20のケーブル部分が引き出される端部に形成されている。 As shown in FIGS. 5A and 5B, the resin mold portion 21α is constituted by a first covering portion 22α, a second covering portion 23α, and a third covering portion 24. The first covering portion 22α is formed on the surface of the film antenna 10 (the surface on the z-axis positive direction side in the illustrated coordinate system), and the second covering portion 23α is formed on the back surface of the film antenna 10 (in the illustrated coordinate system). z-axis negative direction side surface). The 3rd coating | coated part 24 is formed in the edge part from which the cable part of the coaxial cable 20 is pulled out.
 フィルムアンテナ10の表面に対して第1被覆部22αが接触している領域と、フィルムアンテナ10の裏面に対して第2被覆部23αが接触している領域とは、第3領域10cに対して垂直な方向(図示した座標系におけるz軸方向)から見た場合に過不足なく重なっている。 The region where the first covering portion 22α is in contact with the surface of the film antenna 10 and the region where the second covering portion 23α is in contact with the back surface of the film antenna 10 are relative to the third region 10c. When viewed from the vertical direction (z-axis direction in the illustrated coordinate system), they overlap with each other without excess or deficiency.
 第1被覆部22αの厚さ(フィルムアンテナ10の表面から測った場合の高さ)は、同軸ケーブル20の中心からBB’線に近づくにしたがって、換言すれば、フィルムアンテナ10の第3領域10cと第2領域10bとの間の屈曲部に近づくにしたがって、徐々に薄くなるように構成されている。この厚さが徐々に薄くなる部分を第1被覆部22αのスカート部22α1と称する。スカート部22α1は、第1被覆部22αの端辺のうち、BB’線に沿った端辺(BB’線に近い側の端辺)を含む。 In other words, the thickness of the first covering portion 22α (height when measured from the surface of the film antenna 10) approaches the BB ′ line from the center of the coaxial cable 20, in other words, the third region 10c of the film antenna 10. And the second region 10b are configured to gradually become thinner as they approach the bent portion. The portion where the thickness is gradually reduced is referred to as a skirt portion 22α1 of the first covering portion 22α. The skirt portion 22α1 includes an end side along the BB ′ line (an end side closer to the BB ′ line) among the end sides of the first covering portion 22α.
 同様に、第2被覆部23αの厚さ(フィルムアンテナ10の表面から測った場合の高さ)は、同軸ケーブル20の中心からBB’線に近づくにしたがって、換言すれば、フィルムアンテナ10の第3領域10cと第2領域10bとの間の屈曲部に近づくにしたがって、徐々に薄くなるように構成されている。この厚さが徐々に薄くなる部分を第2被覆部23αのスカート部23α1と称する。スカート部23α1は、第2被覆部23αの端辺のうち、BB’線に沿った端辺を(BB’線に近い側の端辺)含む。 Similarly, the thickness of the second covering portion 23α (height when measured from the surface of the film antenna 10) is closer to the line BB ′ from the center of the coaxial cable 20, in other words, the thickness of the film antenna 10 is increased. It is comprised so that it may become thin gradually as the bending part between 3 area | region 10c and 2nd area | region 10b is approached. The portion where the thickness is gradually reduced is referred to as a skirt portion 23α1 of the second covering portion 23α. The skirt portion 23α1 includes an end side along the BB ′ line (an end side closer to the BB ′ line) among the end sides of the second covering portion 23α.
 樹脂モールド部21αにおいて、第1被覆部22αのスカート部22α1及び第2被覆部23αのスカート部23α1は、同じ領域の表裏に、互いに対向して形成されている。そのため、BB’線を稜線としてフィルムアンテナ10が折り曲げられる場合に、折り曲げにより生じる応力を、第1被覆部22αのスカート部22α1と第2被覆部23αのスカート部23α1とに分散させることができる。 In the resin mold portion 21α, the skirt portion 22α1 of the first covering portion 22α and the skirt portion 23α1 of the second covering portion 23α are formed opposite to each other on the front and back of the same region. Therefore, when the film antenna 10 is bent with the BB ′ line as a ridgeline, the stress generated by the bending can be distributed to the skirt portion 22α1 of the first covering portion 22α and the skirt portion 23α1 of the second covering portion 23α.
 また、スカート部22α1,23α1の厚さがBB’線に近づくにしたがって徐々に薄くなるように構成されているため、フィルムアンテナ10が折り曲げられる場合に、第1被覆部22α及び第2被覆部23αの各々は、BB’線に近づくにしたがって、z軸方向に働く力に対してしなやかになるように構成されている。したがって、フィルムアンテナ10の折り曲げにより生じる応力は、第1被覆部22α及び第2被覆部23αのBB’線に沿った端辺に集中せず、スカート部22α1,23α1においてBB’線から遠ざかるにしたがって徐々に緩和される。 In addition, since the thickness of the skirt portions 22α1 and 23α1 is configured to gradually decrease as it approaches the BB ′ line, when the film antenna 10 is bent, the first covering portion 22α and the second covering portion 23α are formed. Each of these is configured to be more flexible with respect to the force acting in the z-axis direction as it approaches the BB ′ line. Accordingly, the stress generated by the bending of the film antenna 10 does not concentrate on the end sides along the BB ′ line of the first covering portion 22α and the second covering portion 23α, and as the skirt portions 22α1, 23α1 move away from the BB ′ line. It is gradually eased.
 これらの構成によれば、フィルムアンテナ10が樹脂モールド部21αの近傍で折り曲げられる場合であっても、第1被覆部22αの第BB’線近傍に位置する端辺とフィルムアンテナ10とが剥離すること、及び、第2被覆部23αのBB’線近傍に位置する端辺とフィルムアンテナ10とが剥離することを長期間に亘って防止できる。したがって、アンテナ装置10の耐水性を長期間に亘って高い水準に保つことができる。 According to these configurations, even when the film antenna 10 is bent in the vicinity of the resin mold portion 21α, the film antenna 10 is peeled off from the edge located near the BB ′ line of the first covering portion 22α. In addition, the film antenna 10 can be prevented from being peeled off for a long period of time, and the end side located near the BB ′ line of the second covering portion 23α. Therefore, the water resistance of the antenna device 10 can be maintained at a high level over a long period of time.
 特に、製造方法の欄に後述するように樹脂モールド部21αを樹脂成型用の金型を用いて射出成形法により形成する場合、樹脂モールド部形成工程においてフィルムアンテナ10が平面に展開された形状のまま樹脂モールド部21αが射出成形され、その後、フィルムアンテナ10を支持体30に巻き付ける巻き付け工程が実施される。樹脂モールド部21αは、展開されたフィルムアンテナ10の形状に沿って形成されているため、巻き付け工程において、第1被覆部22α及び第2被覆部23αの端辺のうち、BB’線に沿った端辺には大きな応力が働く。スカート部22α1,23α1を備えている樹脂モールド部22αは、このような金型を用いて射出成形法により形成される樹脂モールド部として好適である。また、樹脂モールド部21αを構成する材料として硬度が高い樹脂材を採用する場合にも好適である。 In particular, when the resin mold portion 21α is formed by an injection molding method using a mold for resin molding as described later in the column of the manufacturing method, the film antenna 10 has a shape in which the film antenna 10 is developed in a plane in the resin mold portion forming step. The resin mold part 21α is injection-molded as it is, and then a winding step of winding the film antenna 10 around the support 30 is performed. Since the resin mold portion 21α is formed along the shape of the unfolded film antenna 10, in the winding step, the end portion of the first covering portion 22α and the second covering portion 23α is along the line BB ′. A large stress acts on the edge. The resin mold portion 22α provided with the skirt portions 22α1 and 23α1 is suitable as a resin mold portion formed by injection molding using such a mold. Moreover, it is suitable also when employ | adopting a resin material with high hardness as a material which comprises the resin mold part 21 (alpha).
 なお、第1被覆部22α及び第2被覆部23αの各々の厚さは、同軸ケーブル20の中心からCC’線に近づくにしたがって、徐々に薄くなるように構成されている。この厚さが徐々に薄くなる部分を第1被覆部22α及び第2被覆部23αのスカート部22α2,23α2と称する。第2アンテナ導体13は、折り曲げられない構成である。したがって、スカート部22α2,23α2は、アンテナ装置10の耐水性の向上に積極的に寄与するものではないが、樹脂モールド部21αの美観を向上させるなどの効果を奏する。このように、第1被覆部22α及び第2被覆部23αの各々は、スカート部22α2,23α2を含んでいてもよい。 It should be noted that the thickness of each of the first covering portion 22α and the second covering portion 23α is configured to gradually decrease from the center of the coaxial cable 20 toward the CC ′ line. The portions where the thickness gradually decreases are referred to as skirt portions 22α2 and 23α2 of the first covering portion 22α and the second covering portion 23α. The second antenna conductor 13 is configured not to be bent. Therefore, the skirt portions 22α2 and 23α2 do not actively contribute to the improvement of the water resistance of the antenna device 10, but have an effect of improving the aesthetic appearance of the resin mold portion 21α. Thus, each of the first cover portion 22α and the second cover portion 23α may include the skirt portions 22α2 and 23α2.
 〔同軸ケーブルの配線経路〕
 アンテナ装置1における同軸ケーブル20の配線経路について、図6を参照して説明する。図6の(a)~(d)は、それぞれ、アンテナ装置1の平面図、正面図、左側面を示す側面図、、及び底面図である。図6の(a)~(d)の各図においては、同軸ケーブル20の配線経路を分かりやすくするために、フィルムアンテナ10の図示を省略している。
[Wiring path of coaxial cable]
A wiring path of the coaxial cable 20 in the antenna device 1 will be described with reference to FIG. 6A to 6D are a plan view, a front view, a side view showing the left side, and a bottom view of the antenna device 1, respectively. In each of FIGS. 6A to 6D, the film antenna 10 is not shown for easy understanding of the wiring path of the coaxial cable 20.
 同軸ケーブル20が接続されたフィルムアンテナ10が支持体30に巻き付けられ、同軸ケーブル20の端部と給電部14との接続部分が、支持体30の第3支持面33に形成された第1及び第2の凹部37,38に収容される。そして、給電部14から支持体30の左側面側(図示した座標系においてy軸負方向側)に引き出された同軸ケーブル20は、図6の(c)に示すように、支持体30の前方(図示した座標系においてx軸負方向)に屈曲させられたあと、第2保持部35に嵌め込まれる。支持体30の左側面は、第1支持面31、第2支持面32、及び第3支持面33と交わるように構成されている。第2保持部35は、第1支持面31及び第3支持面33に沿うと共に第2支持面32に交わる方向に同軸ケーブル20の一部分が延在するように、同軸ケーブル20を保持する。 The film antenna 10 to which the coaxial cable 20 is connected is wound around the support 30, and the connection portion between the end of the coaxial cable 20 and the power feeding unit 14 is formed on the third support surface 33 of the support 30. The second recesses 37 and 38 are accommodated. The coaxial cable 20 drawn from the power supply unit 14 to the left side surface of the support 30 (the y-axis negative direction side in the illustrated coordinate system) is located in front of the support 30 as shown in FIG. After being bent in the negative direction of the x-axis in the illustrated coordinate system, the second holding portion 35 is fitted. The left side surface of the support 30 is configured to intersect the first support surface 31, the second support surface 32, and the third support surface 33. The second holding unit 35 holds the coaxial cable 20 so that a part of the coaxial cable 20 extends along the first support surface 31 and the third support surface 33 and in a direction intersecting the second support surface 32.
 第2保持部35に嵌め込まれたあとの同軸ケーブル20は、図6の(b)に示すように、支持体30の上方(図示した座標系においてz軸正方向)に屈曲されるとともに、右方(図示した座標系においてy軸正方向)に屈曲させられ、その後、第1保持部34に嵌め込まれる。第1保持部34は、第1支持面31及び第2支持面32に沿う方向に同軸ケーブル20の一部分が延在するように、同軸ケーブル20を保持する。 As shown in FIG. 6B, the coaxial cable 20 after being fitted into the second holding portion 35 is bent above the support 30 (z-axis positive direction in the illustrated coordinate system) and is Is bent in the direction (y-axis positive direction in the illustrated coordinate system), and then fitted into the first holding portion 34. The first holding unit 34 holds the coaxial cable 20 such that a part of the coaxial cable 20 extends in a direction along the first support surface 31 and the second support surface 32.
 第1保持部34に嵌め込まれたあとの同軸ケーブル20は、図6の(a)に示すように、支持体30の前方(図示した座標系においてx軸負方向)に屈曲させられている。 The coaxial cable 20 after being fitted into the first holding part 34 is bent forward of the support 30 (in the illustrated coordinate system, in the negative x-axis direction) as shown in FIG.
 以上のように形成された同軸ケーブル20の配線経路において、第1保持部34は、フィルムアンテナ10の領域10aとフィルムアンテナ10の領域10cとに挟まれた空間領域の外部に設けられていることが好ましい。すなわち、支持体30を平面視した場合、図6の(a)に示すように、第1保持部34は、第1支持面31の外部に設けられていることが好ましい。また、同軸ケーブル20の配線経路において、第2保持部35は、第1支持面31の外部に設けられていることが好ましい。これらの構成によれば、支持体30に対してフィルムアンテナ10を巻き付けたあとであっても、同軸ケーブル20を第1保持部34及び第2保持部35の各々に対して、容易に嵌め込むことができる。したがって、アンテナ装置1の製造に要する手間を削減できるため、アンテナ装置1の製造コストを削減することができる。 In the wiring path of the coaxial cable 20 formed as described above, the first holding portion 34 is provided outside the space region sandwiched between the region 10 a of the film antenna 10 and the region 10 c of the film antenna 10. Is preferred. That is, when the support 30 is viewed in plan, the first holding part 34 is preferably provided outside the first support surface 31 as shown in FIG. In the wiring path of the coaxial cable 20, the second holding part 35 is preferably provided outside the first support surface 31. According to these configurations, even after the film antenna 10 is wound around the support 30, the coaxial cable 20 is easily fitted into each of the first holding part 34 and the second holding part 35. be able to. Therefore, since the labor required for manufacturing the antenna device 1 can be reduced, the manufacturing cost of the antenna device 1 can be reduced.
 同軸ケーブル20の配線経路において特徴的な点の1つは、図6の(b)に示すように、第1保持部34が、同軸ケーブル20において第1支持面31及び第2支持面32に沿う方向に延在する部分を、当該部分から第1支持面31までの距離D1が当該部分から第3支持面33までの距離D2と等しくなるように保持する点である。この構成によれば、同軸ケーブル20の一部が第3支持面33を横断する配線経路を採用した場合であっても、良好な放射特性を得ることができる。この場合の放射特性に関しては、第1実施例において後述する。 One characteristic point in the wiring path of the coaxial cable 20 is that, as shown in FIG. 6B, the first holding portion 34 is provided on the first support surface 31 and the second support surface 32 in the coaxial cable 20. This is a point that holds the portion extending in the direction along the distance D1 from the portion to the first support surface 31 so as to be equal to the distance D2 from the portion to the third support surface 33. According to this configuration, good radiation characteristics can be obtained even when a part of the coaxial cable 20 adopts a wiring path that crosses the third support surface 33. The radiation characteristics in this case will be described later in the first embodiment.
 なお、第1保持部34は、同軸ケーブル20において第1支持面31及び第2支持面32に沿う方向に延在する部分を、距離D1が距離D2以上になるように保持するように構成されていてもよい。この構成であっても、同軸ケーブル20の一部が第3支持面33を横断する配線経路を採用した場合における、放射特性の悪化を抑制することができる。この場合の放射特性に関しては、第2実施例において後述する。 The first holding portion 34 is configured to hold a portion of the coaxial cable 20 that extends in the direction along the first support surface 31 and the second support surface 32 such that the distance D1 is equal to or greater than the distance D2. It may be. Even with this configuration, it is possible to suppress deterioration in radiation characteristics when a part of the coaxial cable 20 employs a wiring path that crosses the third support surface 33. The radiation characteristics in this case will be described later in the second embodiment.
 また、図2の(a)に示すように、第1保持部34の凹部34bは、支持体30の上方(図示した座標系におけるz軸正方向)に開口しており、第2保持部35の凹部35bは、支持体30の下方(図示した座標系におけるz軸負方向)に開口していることが好ましい。また第3保持部36の凹部36bも、支持体30の下方(図示した座標系におけるz軸負方向)に開口していることが好ましい。すなわち、第2及び第3保持部35,36は、第3支持面33に形成された第1及び第2の凹部37,38の開口方向と同じ方向が開口するように各凹部35b,36bが形成され、第1保持部34は、それとは反対側の方向が開口するように凹部34bが形成されていることが好ましい。 Further, as shown in FIG. 2A, the recess 34 b of the first holding part 34 opens above the support 30 (z-axis positive direction in the illustrated coordinate system), and the second holding part 35. The recess 35b is preferably opened below the support 30 (in the negative z-axis direction in the illustrated coordinate system). Moreover, it is preferable that the recessed part 36b of the 3rd holding | maintenance part 36 is also opened below the support body 30 (z-axis negative direction in the coordinate system shown in figure). That is, each of the second and third holding portions 35 and 36 has the concave portions 35b and 36b so that the same direction as the opening direction of the first and second concave portions 37 and 38 formed on the third support surface 33 is opened. It is preferable that the first holding portion 34 is formed with a concave portion 34b so that the opposite direction opens.
 この構成によれば、上下一対の金型を用いて第1から第3保持部34,35,36を有する支持体30を容易に成形することができ、アンテナ装置1の製造コストを削減することができる。また、同軸ケーブル20を保持するための各保持部が、支持体30の上方側と下方側にそれぞれ形成されるため、同軸ケーブル20の引っ張りに対する耐久性(同軸ケーブル20と給電部14との接続部分の耐久性)を高めることができる。 According to this configuration, the support body 30 having the first to third holding portions 34, 35, and 36 can be easily formed using a pair of upper and lower molds, and the manufacturing cost of the antenna device 1 can be reduced. Can do. In addition, since each holding portion for holding the coaxial cable 20 is formed on the upper side and the lower side of the support body 30, durability against the pulling of the coaxial cable 20 (connection between the coaxial cable 20 and the power feeding portion 14). The durability of the part can be increased.
 また、図6の(b),(c)に示すように、第2保持部35は、第1保持部34よりも支持体30の下方(図示した座標系におけるz軸負方向側)に設けられており、第1保持部34及び第2保持部35により保持された同軸ケーブル20は、第1保持部34と第2保持部35との間で第1及び第3支持面31,33と交わる方向(Z軸方向)に延びるように構成されていることが好ましい。また、図6の(b)に示すように、第3保持部36は、第1保持部34よりも支持体30の下方(図示した座標系におけるz軸負方向側)に設けられており、第1保持部34及び第3保持部36により保持された同軸ケーブル20は、第1保持部34と第3保持部36との間で第1及び第3支持面31,33と交わる方向(Z軸方向)に延びるように構成されていることが好ましい。 Further, as shown in FIGS. 6B and 6C, the second holding unit 35 is provided below the support body 30 (on the negative side of the z axis in the illustrated coordinate system) with respect to the first holding unit 34. The coaxial cable 20 held by the first holding part 34 and the second holding part 35 is connected to the first and third support surfaces 31 and 33 between the first holding part 34 and the second holding part 35. It is preferably configured to extend in the intersecting direction (Z-axis direction). Further, as shown in FIG. 6B, the third holding part 36 is provided below the support 30 (on the negative z-axis direction side in the illustrated coordinate system) with respect to the first holding part 34, The coaxial cable 20 held by the first holding unit 34 and the third holding unit 36 intersects the first and third support surfaces 31 and 33 between the first holding unit 34 and the third holding unit 36 (Z It is preferable to be configured to extend in the axial direction).
 すなわち、第1及び第2の凹部37,38に収容された樹脂モールド部21からy軸負方向に延びる同軸ケーブル20は、屈曲してx軸負方向の延びるように第2保持部35で保持される(図6の(d)を参照)。そして、第2保持部35に保持された同軸ケーブル20は、屈曲してz軸正方向に延びて第1保持部34に向かうとともに、屈曲してy軸正方向に延びるように第1保持部34で保持される(図6の(a)~(c)を参照)。そして、第1保持部34で保持された同軸ケーブル20は、屈曲してz軸負方向に延びて第3保持部36に向かうとともに、屈曲してx軸負方向に延びるように第3保持部36で保持される(図6の(b)(d)を参照)。 That is, the coaxial cable 20 extending in the y-axis negative direction from the resin mold portion 21 accommodated in the first and second recesses 37 and 38 is held by the second holding portion 35 so as to be bent and extend in the x-axis negative direction. (See (d) of FIG. 6). The coaxial cable 20 held by the second holding part 35 is bent and extends in the positive z-axis direction toward the first holding part 34, and is bent and extends in the positive y-axis direction. 34 (see (a) to (c) of FIG. 6). The coaxial cable 20 held by the first holding part 34 is bent and extends in the negative z-axis direction toward the third holding part 36, and is bent and extends in the negative x-axis direction. 36 (see FIGS. 6B and 6D).
 この構成によれば、同軸ケーブル20に対してアンテナ装置1から引っ張る方向の力が働いた場合に、同軸ケーブル20の屈曲した部分には、屈曲が伸びる方向の力が働く。その結果、(1)第1保持部34に保持(挟持)されている同軸ケーブル20の一部は、第1保持部34の凹部34bに、より強く押しつけられ、(2)第2保持部35に保持されている同軸ケーブル20の一部は、第2保持部35の凹部35bに、より強く押しつけられる。したがって、同軸ケーブル20に対してアンテナ装置1から引っ張る方向の力が働いた場合であっても、同軸ケーブル20が第1保持部34及び第2保持部35の各々から脱離することを防止することができる。そして、これら保持部材で同軸ケーブル20を保持することによって、同軸ケーブル20に対してアンテナ装置1から引っ張る方向の力が働いた場合であっても、給電部14と同軸ケーブル20との接続部分に引張力の影響が及ぶのを防止できる。 According to this configuration, when a force in a direction of pulling from the antenna device 1 is applied to the coaxial cable 20, a force in a direction in which the bending is extended acts on the bent portion of the coaxial cable 20. As a result, (1) a part of the coaxial cable 20 held (clamped) by the first holding part 34 is pressed more strongly against the recess 34b of the first holding part 34, and (2) the second holding part 35 is pressed. A portion of the coaxial cable 20 held by the second holding portion 35 is more strongly pressed against the concave portion 35 b of the second holding portion 35. Therefore, even when a force in the direction of pulling from the antenna device 1 acts on the coaxial cable 20, the coaxial cable 20 is prevented from being detached from each of the first holding part 34 and the second holding part 35. be able to. And even if it is a case where the force of the direction pulled from the antenna apparatus 1 acts with respect to the coaxial cable 20 by hold | maintaining the coaxial cable 20 with these holding members, it is in the connection part of the electric power feeding part 14 and the coaxial cable 20. The influence of the tensile force can be prevented.
 また、第2保持部35において、同軸ケーブル20の屈曲した部分が接触する表面は、滑らかな曲面により構成されていることが好ましい。本実施形態では、図6の(b)に示すように、第2保持部35の支持体30の前方側(図示した座標系におけるx軸負方向側)の端部に面取り加工を施すことによって、同軸ケーブル20の屈曲した部分が接触する表面を曲面としている。この構成によれば、同軸ケーブル20に対してアンテナ装置1から引っ張る方向の力が働いた場合に、第2保持部35の支持体30の前方側の端部が、同軸ケーブル20を傷つけ、やがて断線させることを防止することができる。 Further, in the second holding portion 35, the surface with which the bent portion of the coaxial cable 20 comes into contact is preferably constituted by a smooth curved surface. In the present embodiment, as shown in FIG. 6B, by chamfering the end of the second holding unit 35 on the front side (the negative x-axis side in the coordinate system shown) of the support 30. The surface with which the bent portion of the coaxial cable 20 contacts is a curved surface. According to this configuration, when a force in the direction of pulling from the antenna device 1 is applied to the coaxial cable 20, the front end portion of the support 30 of the second holding portion 35 damages the coaxial cable 20 and eventually. It is possible to prevent disconnection.
 〔アンテナ装置の製造方法〕
 (第1の製造方法)
 本実施形態に係るアンテナ装置1の第1の製造方法は、フィルムアンテナ10の給電部14に同軸ケーブル20を接続する工程と、給電部14及びこの給電部14に接続された同軸ケーブル20の端部を覆う樹脂モールド部21を形成する樹脂モールド部形成工程とを含む。
[Method of manufacturing antenna device]
(First manufacturing method)
The first manufacturing method of the antenna device 1 according to the present embodiment includes a step of connecting the coaxial cable 20 to the power feeding unit 14 of the film antenna 10, and the end of the power feeding unit 14 and the coaxial cable 20 connected to the power feeding unit 14. A resin mold part forming step of forming a resin mold part 21 covering the part.
 また、第1支持面31と、第1支持面31に交わる第2支持面32と、第1支持面31と対向し、第2支持面32に交わる第3支持面33とを有する支持体30であって、同軸ケーブル20を保持するための第1及び第2保持部34,35(保持手段)を有するとともに、樹脂モールド部21を収容するための第1及び第2の凹部37,38(凹状収容部)が第3支持面33に設けられた支持体30を用意する工程を含む。 In addition, the support 30 having the first support surface 31, the second support surface 32 that intersects the first support surface 31, and the third support surface 33 that faces the first support surface 31 and intersects the second support surface 32. The first and second holding portions 34 and 35 (holding means) for holding the coaxial cable 20 and the first and second recesses 37 and 38 (for holding the resin mold portion 21) are provided. A step of preparing the support body 30 provided with the concave housing portion on the third support surface 33.
 そして、第1及び第2の凹部37,38に樹脂モールド部21が収容されるように、フィルムアンテナ10を支持体30に取り付けるとともに、第1支持面31、第2支持面32及び第3支持面33に接触するように、フィルムアンテナ10を支持体30に巻き付ける巻き付け工程と、第1及び第2保持部34,35に同軸ケーブル20を保持させ、第1支持面31及び第2支持面32に沿う方向に同軸ケーブル20の一部分が延在するように配線する配線工程とを含む。 And while attaching the film antenna 10 to the support body 30 so that the resin mold part 21 may be accommodated in the 1st and 2nd recessed parts 37 and 38, the 1st support surface 31, the 2nd support surface 32, and the 3rd support A winding step of winding the film antenna 10 around the support 30 so as to come into contact with the surface 33, and the first and second holding portions 34 and 35 hold the coaxial cable 20, and the first support surface 31 and the second support surface 32. And a wiring step of wiring so that a part of the coaxial cable 20 extends in the direction along the line.
 本実施形態の樹脂モールド部形成工程では、樹脂モールド部21は、樹脂成型用の金型を用いて射出成形法により形成される。 In the resin mold part forming step of the present embodiment, the resin mold part 21 is formed by an injection molding method using a mold for resin molding.
 具体的には、給電部14に同軸ケーブル20の端部を接続したフィルムアンテナ10を金型にセットし、金型のキャビティ内に、給電部14を含む給電部近傍領域を収容する。その後、このキャビティ内に高温の溶融樹脂材を充填し、この溶融樹脂材をキャビティ内で冷却し硬化させる。そして、この金型からフィルムアンテナ10を取り出すことにより、給電部14及びこの給電部14に接続された同軸ケーブル20の端部が樹脂モールド部21で覆われたフィルムアンテナ10を取得することができる。 Specifically, the film antenna 10 in which the end of the coaxial cable 20 is connected to the power feeding unit 14 is set in a mold, and the region near the power feeding unit including the power feeding unit 14 is accommodated in the mold cavity. Thereafter, the cavity is filled with a high-temperature molten resin material, and the molten resin material is cooled and cured in the cavity. Then, by taking out the film antenna 10 from the mold, it is possible to obtain the film antenna 10 in which the feeding portion 14 and the end of the coaxial cable 20 connected to the feeding portion 14 are covered with the resin mold portion 21. .
 樹脂モールド部21を構成する樹脂材としては、湿気硬化型ウレタン系ホットメルト(例えば、Henkel社のTECHNOMELT PUR 9515)を使用することができるが、これに限定されるものではなく、熱硬化型樹脂や、紫外線硬化型樹脂などを使用することもできる。 As the resin material constituting the resin mold portion 21, a moisture curable urethane hot melt (for example, TECHNOMELT PUR 9515 manufactured by Henkel) can be used, but is not limited thereto, and is not limited to the thermosetting resin. Alternatively, an ultraviolet curable resin or the like can be used.
 また本実施形態では、フィルムアンテナ10の給電部14と同軸ケーブル20の接続部分を樹脂モールド部21で覆ってから、フィルムアンテナ10を支持体30に巻き付けてアンテナ装置1を製造したが、これに限定されるものではない。以下に第2の製造方法について具体的に説明する。 Moreover, in this embodiment, after connecting the connection part of the electric power feeding part 14 and the coaxial cable 20 of the film antenna 10 with the resin mold part 21, the film antenna 10 was wound around the support body 30, and the antenna apparatus 1 was manufactured, It is not limited. The second manufacturing method will be specifically described below.
 (第2の製造方法)
 本実施形態に係るアンテナ装置1の第2の製造方法は、フィルムアンテナ10の給電部14に同軸ケーブル20を接続する接続工程と、第1支持面31と、第1支持面31に交わる第2支持面32と、第1支持面31と対向し、第2支持面32に交わる第3支持面33とを有する支持体30であって、同軸ケーブル20を保持するための第1及び第2保持部34,35(保持手段)を有するとともに、給電部14を収容するための第1及び第2の凹部37,38(凹状収容部)を第3支持面33に設けた支持体30を用意する工程とを含む。
(Second manufacturing method)
The second manufacturing method of the antenna device 1 according to the present embodiment includes a connecting step of connecting the coaxial cable 20 to the power feeding portion 14 of the film antenna 10, a first support surface 31, and a second crossing the first support surface 31. A support body 30 having a support surface 32 and a third support surface 33 facing the first support surface 31 and intersecting the second support surface 32, and a first and a second holding for holding the coaxial cable 20 The support body 30 having the portions 34 and 35 (holding means) and having the third support surface 33 provided with the first and second concave portions 37 and 38 (concave housing portions) for housing the power feeding portion 14 is prepared. Process.
 また第1及び第2の凹部37,38(凹状収容部)に給電部14と同軸ケーブル20の接続部分が収容されるように、フィルムアンテナ10を支持体30に取り付けるとともに、第1支持面31、第2支持面32及び第3支持面33に接触するように、フィルムアンテナ10を支持体30に巻き付ける巻き付け工程と、第1及び第2保持部34,35(保持手段)に同軸ケーブル20を保持させ、第1支持面31及び第2支持面32に沿う方向に同軸ケーブルの20一部分が延在するように配線する配線工程を含む。 In addition, the film antenna 10 is attached to the support 30 and the first support surface 31 so that the connection portion of the power feeding unit 14 and the coaxial cable 20 is accommodated in the first and second recesses 37 and 38 (concave accommodation portions). The winding step of winding the film antenna 10 around the support 30 so as to contact the second support surface 32 and the third support surface 33, and the coaxial cable 20 on the first and second holding portions 34 and 35 (holding means). And a wiring step of wiring so that 20 portions of the coaxial cable extend in a direction along the first support surface 31 and the second support surface 32.
 そして、上記各工程を経た後、給電部14と同軸ケーブル20の接続部分が収容されている第1及び第2の凹部37,38(凹状収容部)に液状の樹脂材を充填し、この樹脂材を硬化させることにより、給電部14及びこの給電部14に接続された同軸ケーブル20の端部を覆う樹脂モールド部21を形成する樹脂モールド部形成工程を含んでいる。 After each of the above steps, the first and second concave portions 37 and 38 (concave housing portions) in which the connecting portions of the power feeding portion 14 and the coaxial cable 20 are accommodated are filled with a liquid resin material, and this resin It includes a resin mold part forming step of forming a resin mold part 21 that covers the power supply part 14 and the end of the coaxial cable 20 connected to the power supply part 14 by curing the material.
 〔車体への搭載例〕
 上述したアンテナ装置1は、様々な構造物に対して装着可能であるが、例えば自動車の車体に搭載することができる。アンテナ装置1の車体への搭載例について、図7を参照して説明する。図7の(a)は、アンテナ装置1を内蔵するスポイラー52を搭載した車体50の斜視図である。図7の(b)は、スポイラー52の斜視図である。
[Example of mounting on a car body]
The antenna device 1 described above can be mounted on various structures, but can be mounted, for example, on the body of an automobile. An example of mounting the antenna device 1 on a vehicle body will be described with reference to FIG. FIG. 7A is a perspective view of a vehicle body 50 on which a spoiler 52 incorporating the antenna device 1 is mounted. FIG. 7B is a perspective view of the spoiler 52.
 図7の(a)に示すように、車体50のルーフ51の後端には、スポイラー52が搭載されている。スポイラー52は、一体成形された樹脂部材である。スポイラー52には、ルーフ51の後端に対するスポイラー52の位置を所定の位置に定めるための構造(不図示)や、ルーフ51の所定の位置にスポイラー52を固定するための構造(不図示)を有する。これらの構造を用いて、スポイラー52は、ルーフ51の所定の位置に固定される。 As shown in FIG. 7A, a spoiler 52 is mounted on the rear end of the roof 51 of the vehicle body 50. The spoiler 52 is an integrally molded resin member. The spoiler 52 has a structure (not shown) for determining the position of the spoiler 52 relative to the rear end of the roof 51 at a predetermined position, and a structure (not shown) for fixing the spoiler 52 at a predetermined position of the roof 51. Have. The spoiler 52 is fixed to a predetermined position of the roof 51 using these structures.
 スポイラー52は、車体50の後部における気流の乱れを抑制する(気流を整流する)、車体50の美観を向上させるなどの機能を有する。気流を整流するために、スポイラー52は、後端に近づくにしたがって、天地方向のサイズが徐々に小さくなるように構成されている。そして、スポイラー52の後部には、内側に空隙が形成されるように(中空構造となるように)構成されている(図7の(b)参照)。 The spoiler 52 has functions such as suppressing the turbulence of the airflow at the rear part of the vehicle body 50 (rectifying the airflow) and improving the aesthetics of the vehicle body 50. In order to rectify the airflow, the spoiler 52 is configured so that the size in the vertical direction gradually decreases as it approaches the rear end. The rear portion of the spoiler 52 is configured so that a gap is formed inside (so as to have a hollow structure) (see FIG. 7B).
 本搭載例では、上記空隙にアンテナ装置1を載置することによって、アンテナ装置1を内蔵するスポイラー52を実現している。アンテナ装置1は、支持体30の第3支持面33が、車体50に搭載されたスポイラー52の頂面側に向くよう、図1に示すアンテナ装置1の配置状態と上下を逆転させてスポイラー52に載置されている。 In this mounting example, the spoiler 52 incorporating the antenna device 1 is realized by mounting the antenna device 1 in the gap. The antenna device 1 has a spoiler 52 in which the arrangement state of the antenna device 1 shown in FIG. 1 is reversed upside down so that the third support surface 33 of the support 30 faces the top surface of the spoiler 52 mounted on the vehicle body 50. Is placed.
 ≪第2の実施形態≫
 続いて、第2の実施形態に係るアンテナ装置1αについて説明する。
<< Second Embodiment >>
Next, the antenna device 1α according to the second embodiment will be described.
 上述したように、第1の実施形態に記載のアンテナ装置1は、例えば自動車の車体に搭載することができるが、その搭載の態様によっては、フィルムアンテナ10の端部が風を受けることによって振動し、例えば風切り音のようなノイズを発することが考えられる。また、フィルムアンテナ10の端部が風を受け続けた場合、その端部が変形することも考えられる。 As described above, the antenna device 1 described in the first embodiment can be mounted, for example, on a car body of an automobile. However, depending on the mounting mode, the end portion of the film antenna 10 is vibrated by receiving wind. For example, it is conceivable to generate noise such as wind noise. Moreover, when the edge part of the film antenna 10 continues receiving a wind, it is also considered that the edge part deform | transforms.
 そこで、第2の実施形態に係るアンテナ装置1αは、このようなノイズの発生や変形が生じることを防止することを更なる目的としたアンテナ装置である。 Therefore, the antenna device 1α according to the second embodiment is an antenna device that further aims to prevent such noise generation and deformation.
 第2の実施形態に係るアンテナ装置1αについて、図8~図10を参照して以下に説明する。なお、第1の実施形態のアンテナ装置1と同様の部材に関しては、同じ符号を付し、その説明を省略する。図8の(a)は、アンテナ装置1αの斜視図である。図8の(b)は、アンテナ装置1αの分解斜視図である。なお、図8の(a),(b)の各図においては、同軸ケーブル20の樹脂モールド部21α以外の部分(ケーブル部分)の図示を省略している。図9は、アンテナ装置1αが備えるフィルムアンテナ10αの平面図である。図10の(a)は、アンテナ装置1αが備える支持体30αの拡大平面図である。図10の(b)は、支持体30αの拡大斜視図である。 The antenna device 1α according to the second embodiment will be described below with reference to FIGS. In addition, about the member similar to the antenna apparatus 1 of 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted. FIG. 8A is a perspective view of the antenna device 1α. FIG. 8B is an exploded perspective view of the antenna device 1α. In addition, in each figure of (a) of FIG. 8, (b), illustration of parts (cable parts) other than the resin mold part 21 (alpha) of the coaxial cable 20 is abbreviate | omitted. FIG. 9 is a plan view of a film antenna 10α included in the antenna device 1α. FIG. 10A is an enlarged plan view of a support 30α included in the antenna device 1α. FIG. 10B is an enlarged perspective view of the support 30α.
 アンテナ装置1αは、フィルムアンテナ10αと、同軸ケーブル20と、支持体30αとを備えている。フィルムアンテナ10αは、第1の実施形態のアンテナ装置1が備えているフィルムアンテナ10に対応する部材である。支持体30αは、第1の実施形態のアンテナ装置1が備えている支持体30に対応する部材である。樹脂モールド部21αは、第1の実施形態のアンテナ装置1が備えている樹脂モールド部21に対応する部材である。 The antenna device 1α includes a film antenna 10α, a coaxial cable 20, and a support 30α. The film antenna 10α is a member corresponding to the film antenna 10 included in the antenna device 1 of the first embodiment. The support 30α is a member corresponding to the support 30 provided in the antenna device 1 of the first embodiment. The resin mold part 21α is a member corresponding to the resin mold part 21 provided in the antenna device 1 of the first embodiment.
 支持体30αは、図8の(b)に示すように、スロット31cが形成されている点が、第1の実施形態のアンテナ装置1における支持体30と異なる。スロット31cは、支持体30αの第1支持面31から第3支持面33(図8に図示せず)に向かう方向(図示した座標系においてz軸負方向)に凹んだ穴部である。第1支持面31に形成されたスロット31cの開口31apの形状は、長辺が図示した座標系のy軸方向に沿い、短辺が図示した座標系のx軸方向に沿う長方形である。長方形の開口31apをz軸負方向に凹ませた形状であるスロット31cは、その内側に形成される空間が直方体であり、4つの側壁、すなわち、開口31apの長辺を含む一対の側壁(互いに対向する一対の側壁)と、開口31apの短辺を含む一対の側壁(互いに対向する一対の側壁)とにより構成されている。 As shown in FIG. 8B, the support 30α is different from the support 30 in the antenna device 1 of the first embodiment in that a slot 31c is formed. The slot 31c is a hole that is recessed in a direction (z-axis negative direction in the illustrated coordinate system) from the first support surface 31 of the support 30α toward the third support surface 33 (not shown in FIG. 8). The shape of the opening 31ap of the slot 31c formed in the first support surface 31 is a rectangle whose long side is along the y-axis direction of the illustrated coordinate system and whose short side is along the x-axis direction of the illustrated coordinate system. The slot 31c having a shape in which the rectangular opening 31ap is recessed in the negative z-axis direction has a rectangular parallelepiped space, and has four side walls, that is, a pair of side walls including the long sides of the opening 31ap (each other And a pair of side walls including a short side of the opening 31ap (a pair of side walls facing each other).
 図9に示すように、フィルムアンテナ10αは、第1の実施形態のアンテナ装置1におけるフィルムアンテナ10が備えている誘電体フィルム11を誘電体フィルム11αに置換することによって得られる。誘電体フィルム11αは、第1の実施形態における誘電体フィルム11を給電部14から遠ざかる方向に延伸することによって得られる。したがって、誘電体フィルム11αを含むフィルムアンテナ10αは、領域10a~10dに加えて、第1アンテナ導体12側の端辺から直線DD’までの領域10e(第4領域:第1アンテナ導体12側の端部)を更に備えている。領域10eには、長方形の開口11aが形成されている。 As shown in FIG. 9, the film antenna 10α is obtained by replacing the dielectric film 11 provided in the film antenna 10 in the antenna device 1 of the first embodiment with the dielectric film 11α. The dielectric film 11α is obtained by stretching the dielectric film 11 according to the first embodiment in a direction away from the power feeding unit 14. Accordingly, the film antenna 10α including the dielectric film 11α includes, in addition to the regions 10a to 10d, a region 10e (fourth region: on the first antenna conductor 12 side) from the end on the first antenna conductor 12 side to the straight line DD ′. End portion). A rectangular opening 11a is formed in the region 10e.
 図8の(b)に示すように、フィルムアンテナ10αは、直線AA’及び直線BB’を稜線としてU字型に折り曲げることによって、支持体30αに巻き付けられている。更に、フィルムアンテナ10αは、直線DD’を稜線として折り曲げることによって、領域10eが支持体30αのスロット31cに挿入することができる。 As shown in FIG. 8B, the film antenna 10α is wound around the support 30α by bending it into a U shape with the straight lines AA ′ and BB ′ as ridge lines. Further, the film antenna 10α can be inserted into the slot 31c of the support 30α by bending the straight line DD ′ as a ridgeline.
 スロット31cの側壁(開口31apの長辺を含む側壁)には、領域10eがスロット31cから脱離することを防止するための固定手段が、図示した座標系におけるy軸正方向側及びy軸負方向側にそれぞれ1つづつ、計2つ設けられている。図10は、この2つの固定手段のうちy軸負方向側の固定手段を拡大して図示している。y軸負方向側の固定手段は、一対のリブであるリブ31d,31eと、くさび型突起13fとにより構成されている。y軸正方向側の固定手段もy軸負方向側の固定手段と同様に構成されている。 On the side wall of the slot 31c (the side wall including the long side of the opening 31ap), fixing means for preventing the region 10e from being detached from the slot 31c is provided on the y-axis positive direction side and the y-axis negative side in the illustrated coordinate system. There are two in total, one on the direction side. FIG. 10 is an enlarged view of the fixing means on the y-axis negative direction side of the two fixing means. The fixing means on the y-axis negative direction side is constituted by a pair of ribs 31d and 31e and a wedge-shaped protrusion 13f. The fixing means on the y-axis positive direction side is configured similarly to the fixing means on the y-axis negative direction side.
 図10の(a)に示すように、リブ31d,31eの各々は、開口31apの長辺を含む一対の側壁のうち、一方の側壁(図示した座標系においてx軸正方向側の側壁)から他方の側壁(図示した座標系においてx軸負方向側の側壁)に向かって突出した突起である。リブ31d,31eの各々は、第1支持面31から第3支持面33に向かう方向(図示した座標系におけるz軸負方向)に直線状に延伸されている。すなわち、リブ31d,31eの各々が延伸されている方向は、互いに平行である。本実施形態において、リブ31d,31eの各々の突出量(x軸正方向側の側壁から測った場合の高さ)は、開口31apの短辺の長さの1/2である。 As shown in FIG. 10A, each of the ribs 31d and 31e is formed from one of the pair of side walls including the long side of the opening 31ap (the side wall on the x-axis positive direction side in the illustrated coordinate system). It is a protrusion protruding toward the other side wall (a side wall on the x-axis negative direction side in the illustrated coordinate system). Each of the ribs 31d and 31e extends linearly in a direction from the first support surface 31 toward the third support surface 33 (z-axis negative direction in the illustrated coordinate system). That is, the direction in which each of the ribs 31d and 31e is extended is parallel to each other. In the present embodiment, the protruding amount of each of the ribs 31d and 31e (height when measured from the side wall on the x-axis positive direction side) is ½ of the length of the short side of the opening 31ap.
 くさび型突起13fは、開口31apの長辺を含む一対の側壁のうち、x軸負方向側の側壁からx軸正方向側の側壁に向かって突出した突起である。くさび型突起13fは、開口31apを平面視した場合に、図示した座標系におけるy軸方向に関して、リブ31dとリブ31eとの中間に位置する。また、くさび型突起13fは、スロット31cの深さ方向(図示した座標系においてz軸方向)に関して、第1支持面31と第3支持面33との中間に位置する。 The wedge-shaped protrusion 13f is a protrusion protruding from the side wall on the x-axis negative direction side toward the side wall on the x-axis positive direction side among the pair of side walls including the long side of the opening 31ap. The wedge-shaped protrusion 13f is positioned between the rib 31d and the rib 31e in the y-axis direction in the illustrated coordinate system when the opening 31ap is viewed in plan. In addition, the wedge-shaped protrusion 13f is positioned between the first support surface 31 and the third support surface 33 with respect to the depth direction of the slot 31c (the z-axis direction in the illustrated coordinate system).
 くさび型突起13fの形状は、図示した座標系のy軸負方向側から見た場合、台形である(図10の(b)参照)。台形を構成する2つの脚のうち、一方の脚に対応するスロープ部31f1とx軸負方向側の側壁とのなす角は鋭角であり、他方の脚に対応するストッパー部31f2とx軸負方向側の側壁とのなす角は直角である。換言すれば、くさび型突起13fの突出量(x軸負方向側の側壁から測った場合の高さ)は、第1支持面31から第3支持面33に近づくにしたがって徐々に大きくなり、所定の大きさ(台形の高さ)に達したあとはその所定の大きさを保ち、その後急峻にゼロになる。本実施形態において、くさび型突起13fの突出量の最大値、すなわち台形の高さは、開口31apの短辺の長さの1/2又は1/2をわずかに上回ることが好ましい。 The shape of the wedge-shaped protrusion 13f is a trapezoid when viewed from the y-axis negative direction side of the illustrated coordinate system (see FIG. 10B). Of the two legs constituting the trapezoid, the angle formed by the slope portion 31f1 corresponding to one leg and the side wall on the x-axis negative direction side is an acute angle, and the stopper portion 31f2 corresponding to the other leg and the x-axis negative direction The angle between the side wall and the side wall is a right angle. In other words, the protrusion amount of the wedge-shaped protrusion 13f (height when measured from the side wall on the x-axis negative direction side) gradually increases as the distance from the first support surface 31 to the third support surface 33 increases. After reaching the size (the height of the trapezoid), the predetermined size is maintained, and then suddenly becomes zero. In the present embodiment, it is preferable that the maximum protrusion amount of the wedge-shaped protrusion 13f, that is, the height of the trapezoid, is slightly larger than 1/2 or 1/2 of the length of the short side of the opening 31ap.
 くさび型突起13fの第1支持面31側にはスロープ部31f1が形成されているため、スロット31cに対して領域10eをスムースに挿入することができる。領域10eをスロット31cに挿入していき、開口11a(図9参照)がくさび型突起13fに対応する位置に達すると、リブ31d,31eによって、領域10eがスロット31cのx軸正方向側の側壁からx軸負方向側の側壁の方向に押しやられ、開口11aがくさび型突起13fに引っかかる。くさび型突起13fの第3支持面33側には切り立ったストッパー部31f2が形成されているため、領域10eに対して、スロット31cから抜く方向の力を作用させたとしても意図せずに開口11aがくさび型突起13fから外れることはない。すなわち、領域10eがスロット31cから意図せずに抜けることはない。 Since the slope portion 31f1 is formed on the first support surface 31 side of the wedge-shaped projection 13f, the region 10e can be smoothly inserted into the slot 31c. When the region 10e is inserted into the slot 31c and the opening 11a (see FIG. 9) reaches a position corresponding to the wedge-shaped protrusion 13f, the region 10e becomes a side wall on the x axis positive direction side of the slot 31c by the ribs 31d and 31e. Is pushed in the direction of the side wall on the negative side of the x-axis, and the opening 11a is caught by the wedge-shaped protrusion 13f. Since the wedge-shaped protrusion 13f is formed with a stopper 31f2 which is formed on the side of the third support surface 33, the opening 11a is unintentionally applied even if a force in the direction of pulling out from the slot 31c is applied to the region 10e. The wedge-shaped protrusion 13f does not come off. That is, the area 10e does not unintentionally leave the slot 31c.
 以上のように構成されたアンテナ装置1αによれば、フィルムアンテナ10αの端部である領域10eがスロット31cの内部に収納され、且つ、抜けることがないため、アンテナ装置1αが風を受けるような位置に搭載されている場合であっても、フィルムアンテナ10αは支持体30αによく密着している。したがって、風を受けてもフィルムアンテナ10αが振動しないため、例えば風切り音のようなノイズの発生を防止することができる。また、フィルムアンテナ10αの端部が変形することを防止することができる。 According to the antenna device 1α configured as described above, the region 10e that is the end of the film antenna 10α is housed in the slot 31c and does not come out, so that the antenna device 1α receives wind. Even when the film antenna 10α is mounted at a position, the film antenna 10α is in close contact with the support 30α. Accordingly, since the film antenna 10α does not vibrate even when receiving wind, it is possible to prevent the generation of noise such as wind noise. In addition, the end of the film antenna 10α can be prevented from being deformed.
 アンテナ装置1αの製造方法は、アンテナ装置1の製造方法と同様であるが、巻き付け工程の一部に、領域10eをスロット31cに挿入する工程をさらに含む。 The manufacturing method of the antenna device 1α is the same as the manufacturing method of the antenna device 1, but further includes a step of inserting the region 10e into the slot 31c as a part of the winding step.
 ≪好ましい同軸ケーブルの配線経路≫
 アンテナ装置の放射特性は、そのアンテナ装置の近傍の環境に影響されやすいことが知られている。本願発明の発明者らは、同軸ケーブル20が第2支持面32に沿う方向に第3支持面33を横断するように構成された第1の実施形態に係るアンテナ装置1において、アンテナ装置1の放射特性が、給電部14から延びる同軸ケーブル20の配線経路に依存して変化することを見いだした。具体的には、第1保持部材34で保持された同軸ケーブル20と、第1及び第2アンテナ導体12,13との距離(距離D1と距離D2)の大小関係に依存して、アンテナ装置1の放射特性が変化することを見いだした。
<< Preferred coaxial cable wiring path >>
It is known that the radiation characteristics of an antenna device are easily affected by the environment in the vicinity of the antenna device. The inventors of the present invention provide the antenna device 1 according to the first embodiment in which the coaxial cable 20 is configured to cross the third support surface 33 in a direction along the second support surface 32. It has been found that the radiation characteristics change depending on the wiring path of the coaxial cable 20 extending from the power feeding unit 14. Specifically, the antenna device 1 depends on the magnitude relationship of the distances (distance D1 and distance D2) between the coaxial cable 20 held by the first holding member 34 and the first and second antenna conductors 12 and 13. We found that the radiation characteristics of the slab changed.
 以下では、第1の実施形態に係るアンテナ装置1の第1保持部材34の凹部34bの深さを変えることにより、同軸ケーブル20と第1及び第2アンテナ導体12,13との距離(距離D1と距離D2)の大小関係を変化させ、放射特性を測定した結果を説明する。 Hereinafter, the distance (distance D1) between the coaxial cable 20 and the first and second antenna conductors 12 and 13 is changed by changing the depth of the recess 34b of the first holding member 34 of the antenna device 1 according to the first embodiment. The result of measuring the radiation characteristics by changing the magnitude relationship between the distance and the distance D2) will be described.
 第1保持部材34で同軸ケーブル20を保持し、D2=D1である構成を採用したアンテナ装置1(第1実施例)、D2≧D1である構成を採用したアンテナ装置1(第2実施例)、及びD2<D1である構成を採用したアンテナ装置(実施例3)を用いて、各アンテナの放射特性を測定した結果を説明する。 The antenna device 1 (first embodiment) adopting the configuration in which the coaxial cable 20 is held by the first holding member 34 and D2 = D1 is adopted, and the antenna device 1 (second embodiment) adopting the configuration in which D2 ≧ D1 is adopted. And the result of having measured the radiation characteristic of each antenna using the antenna apparatus (Example 3) which employ | adopted the structure which is D2 <D1 is demonstrated.
 また、各実施例におけるアンテナの放射特性を考察するための参照対象として、給電部から引き出された同軸ケーブルがフィルムアンテナを横断しない構成を採用するアンテナ装置を参考例として用いる。参考例のアンテナ装置では、給電部から引き出された同軸ケーブルは、第2保持部35及び第1保持部34に嵌め込まれることなく、そのままアンテナ装置から遠ざけられるように配置されている。すなわち、本参考例のアンテナ装置では、同軸ケーブルの引っ張りに対する強度がない構造となっている。 Also, as a reference object for considering the radiation characteristics of the antenna in each embodiment, an antenna device that employs a configuration in which the coaxial cable drawn from the power feeding section does not cross the film antenna is used as a reference example. In the antenna device of the reference example, the coaxial cable drawn out from the power feeding unit is arranged so as to be kept away from the antenna device without being fitted into the second holding unit 35 and the first holding unit 34. In other words, the antenna device of this reference example has a structure that does not have a strength against pulling of the coaxial cable.
 なお、参考例のアンテナ装置が備えているフィルムアンテナは、第1の実施形態のアンテナ装置1が備えているフィムルアンテナ10と同一であり、フィルムアンテナ10の支持体30への巻き付け方も同一である。すなわち、同軸ケーブル20が支持体30の第1保持部24に保持されてない点のみが相違する。 Note that the film antenna included in the antenna device of the reference example is the same as the film antenna 10 included in the antenna device 1 of the first embodiment, and the winding method of the film antenna 10 around the support 30 is also the same. It is. That is, the only difference is that the coaxial cable 20 is not held by the first holding part 24 of the support 30.
 まず、参考例に係るアンテナ装置について、図11を参照して説明する。図11は、参考例に係るアンテナ装置のVSWR(Voltage Standing Wave Ratio)及び平均利得の周波数依存性を示すグラフである。この平均利得は、アンテナ装置によって得られたxy平面における放射利得を全360°に渡って平均することによって算出される。 First, an antenna device according to a reference example will be described with reference to FIG. FIG. 11 is a graph showing the frequency dependence of VSWR (Voltage Standing Wave Ratio) and average gain of the antenna device according to the reference example. This average gain is calculated by averaging the radiation gain in the xy plane obtained by the antenna device over the entire 360 °.
 図11に図示されたVSWRのプロットを参照すると、参考例のアンテナ装置は、800MHz帯において2を下回り、700MHz以下の周波数帯域において急激に大きくなるVSWRを示していることが分かる。また、図11に図示された水平面内における全偏波の平均利得のプロットを参照すると、参考例のアンテナ装置は、800MHz帯において-1dBiを上回る良好な平均利得を示していることが分かる。 Referring to the plot of VSWR shown in FIG. 11, it can be seen that the antenna device of the reference example shows a VSWR that is less than 2 in the 800 MHz band and rapidly increases in the frequency band of 700 MHz or less. Further, referring to the plot of the average gain of all polarizations in the horizontal plane shown in FIG. 11, it can be seen that the antenna device of the reference example shows a good average gain exceeding −1 dBi in the 800 MHz band.
 〔第1実施例〕
 次に、アンテナ装置1の第1実施例について、図12を参照して説明する。図12は、第1実施例のアンテナ装置1のVSWR及び平均利得の周波数依存性を示すグラフである。
[First embodiment]
Next, a first embodiment of the antenna device 1 will be described with reference to FIG. FIG. 12 is a graph showing the frequency dependence of the VSWR and average gain of the antenna device 1 of the first embodiment.
 第1実施例のアンテナ装置1は、本実施形態のアンテナ装置1において、支持体30の高さ(図1に図示した座標系においてz軸方向の長さ)が17.0mmであり、同軸ケーブル20の半径が1.4mmであり、距離D1と距離D2とが何れも8.5mmである構成を採用することによって得られる。すなわち、本実施例のアンテナ装置1は、D2=D1である構成を採用している。なお、本実施例のアンテナ装置1が備えているフィルムアンテナ10は、800MHz帯で好ましい放射特性を得られるように設計されている。 The antenna device 1 of the first example is the same as the antenna device 1 of the present embodiment, in which the height of the support 30 (the length in the z-axis direction in the coordinate system shown in FIG. 1) is 17.0 mm. It is obtained by adopting a configuration in which the radius of 20 is 1.4 mm and the distance D1 and the distance D2 are both 8.5 mm. That is, the antenna device 1 of the present embodiment employs a configuration where D2 = D1. Note that the film antenna 10 provided in the antenna device 1 of the present embodiment is designed so as to obtain preferable radiation characteristics in the 800 MHz band.
 図12に図示されたVSWRのプロットを参照すると、第1実施例のアンテナ装置1は、800MHz帯において2を下回り、700MHz以下の周波数帯域において急激に大きくなるVSWRを示していることが分かる。また、図11に図示された水平面内における全偏波の平均利得のプロットを参照すると、第1実施例のアンテナ装置1は、800MHz帯において-1dBiを上回る良好な平均利得を示していることが分かる。 Referring to the VSWR plot shown in FIG. 12, it can be seen that the antenna device 1 of the first embodiment shows a VSWR that is less than 2 in the 800 MHz band and rapidly increases in the frequency band of 700 MHz or less. Further, referring to the plot of the average gain of all the polarizations in the horizontal plane shown in FIG. 11, the antenna device 1 of the first example shows a good average gain exceeding −1 dBi in the 800 MHz band. I understand.
 以上のように、第1実施例のアンテナ装置1によれば、同軸ケーブル20がフィルムアンテナ10を横断する構成を採用しているにも関わらず、同軸ケーブルがフィルムアンテナを横断しないままアンテナ装置から遠ざけられる構成を採用している参考例のアンテナ装置に遜色ない放射特性を示すことが分かった。 As described above, according to the antenna device 1 of the first embodiment, although the coaxial cable 20 employs the configuration in which the coaxial cable 20 crosses the film antenna 10, the coaxial cable does not cross the film antenna from the antenna device. It was found that the antenna device of the reference example adopting the configuration that is kept away from the antenna shows the same radiation characteristics.
 〔第2実施例〕
 次に、アンテナ装置1の第2実施例について、図13を参照して説明する。図13は、第2実施例のアンテナ装置1のVSWR及び平均利得の周波数依存性を示すグラフである。
[Second Embodiment]
Next, a second embodiment of the antenna device 1 will be described with reference to FIG. FIG. 13 is a graph showing the frequency dependence of the VSWR and average gain of the antenna device 1 of the second embodiment.
 第2実施例のアンテナ装置1は、アンテナ装置1において、距離D1として15.6mmを採用し、距離D2として1.4mmを採用することによって得られる。すなわち、第2実施例のアンテナ装置1は、距離D1が距離D2以上となる構成を採用している。第2実施例のアンテナ装置1と第1実施例のアンテナ装置1とは、距離D1及び距離D2の数値以外は、同一である。 The antenna device 1 of the second embodiment can be obtained by adopting 15.6 mm as the distance D1 and 1.4 mm as the distance D2 in the antenna device 1. That is, the antenna device 1 of the second embodiment employs a configuration in which the distance D1 is greater than or equal to the distance D2. The antenna device 1 of the second embodiment and the antenna device 1 of the first embodiment are the same except for the numerical values of the distance D1 and the distance D2.
 図13に図示されたVSWRのプロットを参照すると、第2実施例のアンテナ装置1は、800MHz帯において2程度であり、700MHz以下の周波数帯域において急激に大きくなるVSWRを示していることが分かる。また、図13に図示された水平面内における全偏波の平均利得のプロットを参照すると、第2実施例のアンテナ装置1は、800MHz帯において-1dBiを上回る良好な平均利得を示していることが分かる。 Referring to the plot of VSWR shown in FIG. 13, it can be seen that the antenna device 1 of the second embodiment shows a VSWR that is about 2 in the 800 MHz band and rapidly increases in the frequency band of 700 MHz or less. Further, referring to the plot of the average gain of all polarizations in the horizontal plane shown in FIG. 13, the antenna device 1 of the second embodiment shows a good average gain exceeding −1 dBi in the 800 MHz band. I understand.
 以上のように、第2実施例のアンテナ装置1によれば、同軸ケーブル20がフィルムアンテナ10を横断する構成を採用しているにも関わらず、同軸ケーブルがフィルムアンテナを横断しない構成を採用している参考例のアンテナ装置に遜色ない放射特性を示すことが分かった。 As described above, according to the antenna device 1 of the second embodiment, a configuration in which the coaxial cable 20 does not cross the film antenna is adopted although the coaxial cable 20 adopts a configuration in which the film antenna 10 is crossed. It was found that the antenna device of the reference example shows the same radiation characteristics.
 〔第3実施例〕
 次に、アンテナ装置1の第3実施例について、図14を参照して説明する。図14は、第3実施例のアンテナ装置1のVSWR及び平均利得の周波数依存性を示すグラフである。
[Third embodiment]
Next, a third embodiment of the antenna device 1 will be described with reference to FIG. FIG. 14 is a graph showing the frequency dependence of VSWR and average gain of the antenna device 1 of the third embodiment.
 第3実施例のアンテナ装置1は、本実施形態のアンテナ装置1において、距離D1として1.4mmを採用し、距離D2として15.6mmを採用することによって得られる。すなわち、第3実施例のアンテナ装置1は、距離D1が距離D2より小さい構成を採用している。第3実施例のアンテナ装置1と第1及び第2実施例のアンテナ装置1とは、距離D1及び距離D2の数値以外は、同一である。 The antenna device 1 of the third example is obtained by adopting 1.4 mm as the distance D1 and 15.6 mm as the distance D2 in the antenna device 1 of the present embodiment. That is, the antenna device 1 of the third embodiment employs a configuration in which the distance D1 is smaller than the distance D2. The antenna device 1 of the third embodiment and the antenna device 1 of the first and second embodiments are the same except for the numerical values of the distance D1 and the distance D2.
 図14に図示されたVSWRのプロットを参照すると、第3実施例のアンテナ装置1は、800MHz帯において2程度であるものの、700MHz以下の周波数帯域において大きくならないVSWRを示していることが分かる。また、図14に図示された水平面内における全偏波の平均利得は、800MHz帯において-1dBiを大きく下回っている。 Referring to the plot of VSWR shown in FIG. 14, it can be seen that the antenna device 1 of the third embodiment shows a VSWR that is about 2 in the 800 MHz band but does not increase in the frequency band of 700 MHz or less. Further, the average gain of all the polarizations in the horizontal plane shown in FIG. 14 is significantly lower than −1 dBi in the 800 MHz band.
 以上のように、第3実施例のアンテナ装置1によれば、同軸ケーブルがフィルムアンテナを横断する構成であって、距離D2が距離D1より小さい構成を採用した場合、VSWRが参考例のアンテナ装置と比較して異なる形状になり、平均利得が大きく低下することが分かった。 As described above, according to the antenna device 1 of the third embodiment, when the configuration in which the coaxial cable crosses the film antenna and the distance D2 is smaller than the distance D1, the VSWR is the reference antenna device. It was found that the average gain was greatly reduced with a different shape.
 第1から第3実施例の結果から、同軸ケーブル20が第1保持部34に保持される構成を採用する(同軸ケーブル20がフィルムアンテナ10を横断する)場合、距離D2が距離D1以上となる構成を採用することが好ましいことが分かった。なお、第1保持部材34に保持された同軸ケーブル20がフィルムアンテナ10を横断せずに、途中から前方に引き出される形態(後述する第4の実施形態を参照)についても、同様の結果が成り立つ。 From the results of the first to third embodiments, when the configuration in which the coaxial cable 20 is held by the first holding portion 34 is adopted (the coaxial cable 20 crosses the film antenna 10), the distance D2 is equal to or greater than the distance D1. It has been found preferable to employ the configuration. Note that the same result holds for a configuration in which the coaxial cable 20 held by the first holding member 34 is drawn forward from the middle without crossing the film antenna 10 (see the fourth embodiment described later). .
 ≪第3の実施形態≫
 本発明の第3の実施形態に係るアンテナ装置1βの構成について、図15及び図16を参照して説明する。図15の(a)は、アンテナ装置1βが備えている支持体30Aの斜視図である。図15の(b)は、アンテナ装置1βの斜視図である。図16は、アンテナ装置1βの製造方法のフローチャートである。
<< Third Embodiment >>
The configuration of the antenna device 1β according to the third embodiment of the present invention will be described with reference to FIGS. FIG. 15A is a perspective view of a support 30A provided in the antenna device 1β. FIG. 15B is a perspective view of the antenna device 1β. FIG. 16 is a flowchart of a method for manufacturing the antenna device 1β.
 〔アンテナ装置の構成〕
 本実施形態に係るアンテナ装置1βは、第1の実施形態に係るアンテナ装置1における支持体30と樹脂モールド部21とを、それぞれ支持体30Aと樹脂モールド部21Aとに置き換えることにより得られる。そこで、本実施形態においては、支持体30A及び樹脂モールド部21Aを中心に説明する。なお、アンテナ装置1と同様の部材に関しては、同じ符号を付し、その説明を省略する。
[Configuration of antenna device]
The antenna device 1β according to the present embodiment is obtained by replacing the support 30 and the resin mold part 21 in the antenna device 1 according to the first embodiment with a support 30A and a resin mold part 21A, respectively. Therefore, in the present embodiment, the description will focus on the support 30A and the resin mold portion 21A. In addition, about the member similar to the antenna apparatus 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.
 図15の(a)に示すように、支持体30Aは、第1の凹部37A、第2の凹部38A、及びL字溝部37Bを、第3支持面33に備えている。第1及び第2の凹部37A,38Aは、第1の実施形態における第1及び第2の凹部37、38にそれぞれ対応する構成である。L字溝部37Bは第1の凹部37Aと連通して、第3支持面33の端部へ延びる溝であって、後述する樹脂モールド部21Aの成形時に、第1の凹部37Aの内部に存在する空気を外部へ逃がす通気孔として機能する。 15A, the support 30A includes a first concave portion 37A, a second concave portion 38A, and an L-shaped groove portion 37B on the third support surface 33. As shown in FIG. The 1st and 2nd crevices 37A and 38A are composition corresponding to the 1st and 2nd crevices 37 and 38 in a 1st embodiment, respectively. The L-shaped groove portion 37B communicates with the first concave portion 37A and extends to the end portion of the third support surface 33, and is present inside the first concave portion 37A when the resin mold portion 21A described later is molded. It functions as a vent that allows air to escape to the outside.
 なお、支持体30Aは、第1の実施形態に係るアンテナ装置1における支持体30と同様に、第1支持面31と、第1支持面31と交わる第2支持面32と、第1支持面31と対向し、第2支持面32と交わる第3支持面33とを有する構造物であって、これら第1から第3支持面31~33に接触するようにフィルムアンテナ10が巻き付けられる。また、支持体30Aは、フィルムアンテナ10に接続された同軸ケーブル20を保持するための第1保持部34、第2保持部35及び第3保持部36を備えており、第1の実施形態に係るアンテナ装置1における支持体30と同様に、フィルムアンテナ10に接続された同軸ケーブル20が配線される。 The support 30A includes a first support surface 31, a second support surface 32 that intersects the first support surface 31, and a first support surface, similarly to the support 30 in the antenna device 1 according to the first embodiment. 31 is a structure having a third support surface 33 facing the first support surface 32 and intersecting with the second support surface 32, and the film antenna 10 is wound so as to be in contact with the first to third support surfaces 31 to 33. Further, the support 30A includes a first holding part 34, a second holding part 35, and a third holding part 36 for holding the coaxial cable 20 connected to the film antenna 10, and the first embodiment includes The coaxial cable 20 connected to the film antenna 10 is wired similarly to the support body 30 in the antenna device 1.
 〔アンテナ装置1βの製造方法〕
 本実施形態に係るアンテナ装置1βの製造方法は、フィルムアンテナ10の給電部14に同軸ケーブル20を接続する接続工程と、第1支持面31と、第1支持面31に交わる第2支持面32と、第1支持面31と対向し、第2支持面32に交わる第3支持面33とを有する支持体30であって、同軸ケーブル20を保持するための第1及び第2保持部34,35(保持手段)を有するとともに、給電部14を収容するための第1及び第2の凹部37A,38A(凹状収容部)を第3支持面33に設けた支持体30Aを用意する工程とを含む。
[Method for Manufacturing Antenna Device 1β]
The manufacturing method of the antenna device 1β according to the present embodiment includes a connecting step of connecting the coaxial cable 20 to the power feeding unit 14 of the film antenna 10, a first support surface 31, and a second support surface 32 that intersects the first support surface 31. And a support body 30 having a third support surface 33 facing the first support surface 31 and intersecting the second support surface 32, and a first and second holding portion 34 for holding the coaxial cable 20. And a step of preparing a support 30A having the first support portion 35 (holding means) and the first and second concave portions 37A and 38A (concave housing portions) for housing the power feeding unit 14 provided on the third support surface 33. Including.
 また第1及び第2の凹部37A,38A(凹状収容部)に給電部14が収容されるように、フィルムアンテナ10を支持体30Aに取り付けるとともに、第1支持面31、第2支持面32及び第3支持面33に接触するように、フィルムアンテナ10を支持体30に巻き付ける巻き付け工程と、第1及び第2保持部34,35(保持手段)に同軸ケーブル20を保持させ、第1支持面31及び第2支持面32に沿う方向に同軸ケーブルの20一部分が延在するように配線する配線工程を含む。 In addition, the film antenna 10 is attached to the support 30A so that the power feeding portion 14 is accommodated in the first and second recesses 37A and 38A (concave accommodation portions), and the first support surface 31, the second support surface 32, and A winding step of winding the film antenna 10 around the support 30 so as to contact the third support surface 33, and the coaxial cable 20 is held by the first and second holding portions 34 and 35 (holding means), and the first support surface 31 and a wiring step of wiring so that 20 portions of the coaxial cable extend in a direction along the second support surface 32.
 そして、給電部14が収容されている第1及び第2の凹部37A,38A(凹状収容部)に液状の樹脂材を充填し、この樹脂材を硬化させることにより、給電部14及びこの給電部14に接続された同軸ケーブル20の端部を覆う樹脂モールド部21Aを形成する樹脂モールド部形成工程を含んでいる。本実施形態では、第1の凹部37Aに連通するL字溝部37Bを設けたことにより、第1及び第2の凹部37A,38A(凹状収容部)内部に存在する空気を外部へ逃がし、液状の樹脂材をスムーズに流入さることができる。このため、液状の樹脂材を流入させる際に気泡等の発生が抑制され、給電部14と同軸ケーブル20の端部との接続部部分を覆う樹脂モールド部21Aを形成することができる。 The first and second concave portions 37A and 38A (concave housing portions) in which the power feeding portion 14 is accommodated are filled with a liquid resin material, and the resin material is cured, thereby supplying the power feeding portion 14 and the power feeding portion. 14 includes a resin mold portion forming step of forming a resin mold portion 21A that covers the end portion of the coaxial cable 20 connected to 14. In the present embodiment, by providing the L-shaped groove portion 37B communicating with the first concave portion 37A, the air existing inside the first and second concave portions 37A, 38A (concave housing portion) is released to the outside, and the liquid state Resin material can flow in smoothly. For this reason, generation | occurrence | production of a bubble etc. is suppressed when flowing in a liquid resin material, and the resin mold part 21A which covers the connection part part of the electric power feeding part 14 and the edge part of the coaxial cable 20 can be formed.
 図11を参照して、アンテナ装置1βの製造方法について詳細に説明する。 Referring to FIG. 11, a method for manufacturing antenna device 1β will be described in detail.
 本実施形態では、上述した接続工程と巻き付け工程と配線工程との各工程を経た後(ステップS100)、樹脂モールド部形成工程(ステップS102、S104、S106、S108)を経ることによって、アンテナ装置1βを製造する。 In the present embodiment, the antenna device 1β is subjected to the resin mold part forming steps (steps S102, S104, S106, and S108) after passing through the connection step, the winding step, and the wiring step (step S100). Manufacturing.
 樹脂モールド部形成工程は、図16に示すように、フィルムアンテナ10が巻き付けられた支持体30Aを、治具100を構成する一対の固定板の間にセットする治具セット工程(ステップS102)と、フィルムアンテナ10が巻き付けられた支持体30Aを一対の固定板で挟み込んで加圧する加圧工程(ステップS104)と、支持体30Aの第2の凹部38Aの端部から液状の樹脂材を注入し、第1の凹部37A内に液状の樹脂材を充填する充填工程(ステップS106)と、第1の凹部37A内に充填した液状の樹脂材を硬化させて樹脂モールド部21Aを形成した後、治具100からアンテナ装置1βを取り出す取出工程(ステップS108)とを含む。 As shown in FIG. 16, the resin mold part forming step includes a jig setting step (step S102) in which the support 30A around which the film antenna 10 is wound is set between a pair of fixing plates constituting the jig 100, and a film. A pressurizing step (step S104) in which the support 30A around which the antenna 10 is wound is sandwiched between a pair of fixing plates and pressed, and a liquid resin material is injected from the end of the second recess 38A of the support 30A. After the filling step (step S106) of filling the liquid resin material into the first concave portion 37A and the liquid resin material filled in the first concave portion 37A are cured to form the resin mold portion 21A, the jig 100 And an extraction step (step S108) for extracting the antenna device 1β from the antenna device.
 治具セット工程(ステップS102)では、治具100を構成する一対の固定板の間に、フィルムアンテナ10が巻き付けられた支持体30Aをセットする。このとき、支持体30Aの第1及び第3支持面31,33に各固定板を対向させるとともに、支持体30Aの第2保持部35が上方に位置する向きに支持体30Aを配置する。これによって、第3支持面33に設けられた第1及び第2の凹部37A,38Aが垂直方向に沿って並んで配置され、第1の凹部37Aに連通する第2の凹部38Aの端部が支持体30Aの上端に配置される。 In the jig setting step (step S102), the support 30A around which the film antenna 10 is wound is set between a pair of fixing plates constituting the jig 100. At this time, the fixing plates are opposed to the first and third support surfaces 31 and 33 of the support 30A, and the support 30A is disposed in a direction in which the second holding portion 35 of the support 30A is positioned upward. As a result, the first and second recesses 37A, 38A provided on the third support surface 33 are arranged side by side along the vertical direction, and the end of the second recess 38A communicating with the first recess 37A is formed. It arrange | positions at the upper end of 30 A of support bodies.
 加圧工程(ステップS104)では、フィルムアンテナ10が巻き付けられた支持体30Aに対して、第1支持面31と第3支持面33に向けて一対の固定板をそれぞれ加圧する。これによって支持体30Aに対してフィルムアンテナ10がより均一な圧力で押さえつけられ、第1及び第3支持面31,33に対してフィルムアンテナ10がそれぞれ密着する。このため、次の工程(ステップS106)で、第3支持面33に設けられた第1の凹部37Aに液状の樹脂材を充填したとき、この樹脂材が第1の凹部37Aの外部に漏れることを防止することができる。 In the pressurizing step (step S104), the pair of fixing plates are pressed toward the first support surface 31 and the third support surface 33, respectively, on the support 30A around which the film antenna 10 is wound. As a result, the film antenna 10 is pressed against the support 30A with a more uniform pressure, and the film antenna 10 comes into close contact with the first and third support surfaces 31 and 33, respectively. For this reason, in the next step (step S106), when the liquid resin material is filled in the first concave portion 37A provided on the third support surface 33, the resin material leaks to the outside of the first concave portion 37A. Can be prevented.
 充填工程(ステップS106)では、第2の凹部38Aの端部(上端)から液状の樹脂材を注入し、第1の凹部37Aに液状の樹脂材を充填する。 In the filling step (step S106), a liquid resin material is injected from the end (upper end) of the second recess 38A, and the first recess 37A is filled with the liquid resin material.
 このとき、第2の凹部38Aには同軸ケーブル20が挿通しているため、第2の凹部38Aと同軸ケーブル20との隙間から液状の樹脂材を注入する。そこで、この隙間からの樹脂材の注入を容易にするため、例えは、先細形状のニードルを用いて液状の樹脂材を注入してもよい。また、例えば、充填に要する時間を短縮するために、圧力を印加しながら液状の樹脂材を注入してもよい。 At this time, since the coaxial cable 20 is inserted into the second recess 38A, a liquid resin material is injected from the gap between the second recess 38A and the coaxial cable 20. Therefore, in order to facilitate the injection of the resin material from the gap, for example, the liquid resin material may be injected using a tapered needle. For example, in order to shorten the time required for filling, a liquid resin material may be injected while applying pressure.
 なお、第1の凹部37Aに連通するL字溝部37Bによって、第1の凹部37A内部に存在する空気を外部へ逃がすことができる。そのため、第2の凹部38Aの上端から注入した液状の樹脂材を第1の凹部37Aの内部に流入させることができ、第1の凹部37Aに液状の樹脂材を充填することができる。 Note that the air present in the first recess 37A can be released to the outside by the L-shaped groove portion 37B communicating with the first recess 37A. Therefore, the liquid resin material injected from the upper end of the second recess 38A can be caused to flow into the first recess 37A, and the first recess 37A can be filled with the liquid resin material.
 取出工程(ステップS108)では、第1の凹部37A内に充填した液状の樹脂材を硬化させることによって、この第1の凹部37Aに収容されている給電部14及びこの給電部14に接続された同軸ケーブル20の端部とを覆う樹脂モールド部21Aを形成する。樹脂モールド部21を形成した後、支持体30Aを挟み込んでいる一対の固定板を取り外し、治具100からアンテナ装置1βを取り出す。 In the take-out process (step S108), the liquid resin material filled in the first recess 37A is hardened to connect the power supply unit 14 accommodated in the first recess 37A and the power supply unit 14. A resin mold portion 21 </ b> A that covers the end portion of the coaxial cable 20 is formed. After forming the resin mold part 21, the pair of fixing plates sandwiching the support 30A is removed, and the antenna device 1β is taken out from the jig 100.
 なお、治具100からアンテナ装置1βを取り出すタイミング(換言すれば、支持体30Aを挟み込む方向に加えていた圧力を解放し一対の固定板を取り外すタイミング)は、使用する樹脂の硬化時間や粘度、気温などに応じて適宜設定することができる。 Note that the timing of taking out the antenna device 1β from the jig 100 (in other words, the timing of releasing the pressure applied in the direction of sandwiching the support 30A and removing the pair of fixing plates) is the curing time and viscosity of the resin used, It can be set as appropriate according to the temperature.
 樹脂モールド部21Aを構成する樹脂材として、2液混合型のウレタン系樹脂(例えば、WEVO-CHEMIE社のWEVOPUR PD 4)を使用することができるが、これに限定されない。 As the resin material constituting the resin mold portion 21A, a two-component mixed urethane resin (for example, WEVOPUR PD 4 manufactured by WEVO-CHEMIE) can be used, but is not limited thereto.
 なお、WEVO-CHEMIE社のWEVOPUR PD 4を使用して形成した樹脂モールド部21Aは、第1の凹部37Aに常温で充填した液状の樹脂材を常温で硬化させることで形成される。そのため、例えば、湿気硬化型ウレタン系ホットメルトである、Henkel社のTECHNOMELT PUR 9515を使用して射出成形で形成した第1の実施形態に係るアンテナ装置1の樹脂モールド部21と比較して、フィルムアンテナ10にかかる応力が小さいといった利点がある。また、WEVO-CHEMIE社のWEVOPUR PD 4を使用して形成した樹脂モールド部21Aは硬度が小さいため、樹脂モールド部21Aとフィルムアンテナ10の熱膨張係数の相違による剥離を抑制することができるといった利点がある。 The resin mold portion 21A formed using WEVOPUR PD 4 manufactured by WEVO-CHEMIE is formed by curing a liquid resin material filled in the first concave portion 37A at room temperature. Therefore, for example, compared with the resin mold part 21 of the antenna device 1 according to the first embodiment formed by injection molding using TECHNOMELT PUR 9515 of Henkel, which is a moisture-curable urethane hot melt. There is an advantage that the stress applied to the antenna 10 is small. Further, since the resin mold portion 21A formed using WEVOPUR PD 4 of WEVO-CHEMIE has a small hardness, it is possible to suppress peeling due to a difference in thermal expansion coefficient between the resin mold portion 21A and the film antenna 10. There is.
 なお、本実施形態の製造方法において、樹脂モールド部形成工程を実施する前に、接続工程と巻き付け工程と配線工程との各工程を実施するものとして説明した。しかし、配線工程は、樹脂モールド部形成工程を実施した後であっても実施可能である。 In addition, in the manufacturing method of this embodiment, before implementing the resin mold part formation process, it demonstrated as what implements each process of a connection process, a winding process, and a wiring process. However, the wiring process can be performed even after the resin mold portion forming process is performed.
 〔変形例〕
 アンテナ装置は、様々な温度変化にさらされ、様々な熱履歴が加えられることが想定される。アンテナ装置1βの支持体30A、フィルムアンテナ10、及び樹脂モールド部21Aの各々は、それぞれ異なる材料により構成されている。そのため、アンテナ装置が熱履歴を受けた場合に、アンテナ装置1βの支持体30A、フィルムアンテナ10、及び樹脂モールド部21Aを構成するそれぞれの材料の熱膨張係数が異なることに起因して、支持体30Aと樹脂モールド部21Aとの界面(第1界面)、及び、樹脂モールド部21Aとフィルムアンテナ10との界面(第2界面)には応力が働く。
[Modification]
It is assumed that the antenna device is exposed to various temperature changes and various thermal histories are applied. Each of support 30A, film antenna 10, and resin mold portion 21A of antenna device 1β is made of a different material. Therefore, when the antenna device receives a thermal history, the support member 30A, the film antenna 10 and the resin mold part 21A of the antenna device 1β are different from each other in the coefficient of thermal expansion. Stress acts on the interface (first interface) between 30A and the resin mold part 21A and on the interface (second interface) between the resin mold part 21A and the film antenna 10.
 熱履歴が繰り返しアンテナ装置1βに加えられると、最終的には、第1界面及び第2界面の何れかが剥離する。第1界面及び第2界面の何れの界面が剥離するかは、第1界面及び第2界面の各々に働く応力と、第1界面における支持体30Aと樹脂モールド部21Aとの接着力と、第2界面における樹脂モールド部21Aとフィルムアンテナ10Aとの接着力とのバランスにより決まる。第1界面に働く応力が支持体30Aと樹脂モールド部21Aとの接着力を上回った場合、第1界面が剥離するし、第2界面に働く応力が樹脂モールド部21Aとフィルムアンテナ10Aとの接着力を上回った場合、第2界面が剥離する。 When the heat history is repeatedly applied to the antenna device 1β, finally, either the first interface or the second interface is peeled off. Which interface of the first interface and the second interface peels depends on the stress acting on each of the first interface and the second interface, the adhesive force between the support 30A and the resin mold portion 21A at the first interface, It is determined by the balance between the adhesive strength between the resin mold portion 21A and the film antenna 10A at the two interfaces. When the stress acting on the first interface exceeds the adhesive force between the support 30A and the resin mold part 21A, the first interface peels off and the stress acting on the second interface adheres between the resin mold part 21A and the film antenna 10A. When the force is exceeded, the second interface peels off.
 樹脂モールド部21Aは、同軸ケーブル20の内側導体及び外側導体、並びに、給電部14が暴露されることを防止し、結果としてフィルムアンテナ10の耐水性を向上させることを目的とする部材である。したがって、第2界面において樹脂モールド部21Aとフィルムアンテナ10とが剥離した場合、フィルムアンテナ10の耐水性が劣化するという問題を生じる。逆に、第1界面において支持体30Aと樹脂モールド部21Aとが剥離する場合、同軸ケーブル20の内側導体及び外側導体、並びに、給電部14は、樹脂モールド部により覆われているままなので、フィルムアンテナ10の耐水性が劣化することはない。 The resin mold portion 21A is a member for preventing the inner conductor and outer conductor of the coaxial cable 20 and the power feeding portion 14 from being exposed, and as a result, improving the water resistance of the film antenna 10. Therefore, when the resin mold part 21A and the film antenna 10 peel at the second interface, there arises a problem that the water resistance of the film antenna 10 deteriorates. Conversely, when the support 30A and the resin mold portion 21A are peeled off at the first interface, the inner conductor and the outer conductor of the coaxial cable 20 and the power feeding portion 14 remain covered with the resin mold portion. The water resistance of the antenna 10 does not deteriorate.
 アンテナ装置1βの変形例であるアンテナ装置1β’は、第2界面における樹脂モールド部21Aとフィルムアンテナ10との剥離を抑制することによって、フィルムアンテナの耐水性が劣化することを防止することを更なる目的としたアンテナ装置である。 The antenna device 1β ′, which is a modification of the antenna device 1β, further prevents the water resistance of the film antenna from being deteriorated by suppressing the separation between the resin mold portion 21A and the film antenna 10 at the second interface. This is an antenna device intended.
 本変形例のアンテナ装置1β’について、図17を参照して説明する。図17の(a)は、アンテナ装置1β’が備えている支持体30Bの第3支持面33の平面図である。より詳しくは、第3支持面33を、図示した座標系におけるz軸負方向側から矢視した場合に得られる平面図である。図17の(b)は、アンテナ装置1β’の拡大断面図である。より詳しくは、図17の(a)に図示したAA’線に沿った断面における、樹脂モールド部21Bの拡大断面図である。 The antenna device 1β ′ according to this modification will be described with reference to FIG. FIG. 17A is a plan view of the third support surface 33 of the support 30B provided in the antenna device 1β ′. More specifically, it is a plan view obtained when the third support surface 33 is viewed from the z-axis negative direction side in the illustrated coordinate system. FIG. 17B is an enlarged cross-sectional view of the antenna device 1β ′. More specifically, FIG. 18 is an enlarged cross-sectional view of the resin mold portion 21B in a cross section taken along the line AA ′ illustrated in FIG.
 アンテナ装置1β’は、アンテナ装置1βが備えている支持体30Aを支持体30Bに置換することによって得られる。なお、支持体30Bが備えている第1の凹部37C、第2の凹部38B、及びJ字溝部(溝部)37Dの各々は、支持体30Aが備えている第1の凹部37A、第2の凹部38A、及びL字溝部37Bの各々に対応している。なお、支持体30Aと同様の部材に関しては、同じ符号を付し、その説明を省略する。 The antenna device 1β ′ is obtained by replacing the support 30A provided in the antenna device 1β with a support 30B. Each of the first concave portion 37C, the second concave portion 38B, and the J-shaped groove portion (groove portion) 37D provided in the support body 30B includes the first concave portion 37A and the second concave portion provided in the support body 30A. 38A and the L-shaped groove portion 37B. In addition, about the member similar to 30 A of support bodies, the same code | symbol is attached | subjected and the description is abbreviate | omitted.
 支持体30Bは、支持体30Aに対して以下の変更を施したものである。なお、第1の凹部37Cに連通しており、第1の凹部37Cの内部に存在する空気を外部へ逃がす通気孔として機能するJ字溝部37Dは、第1の凹部37C及び第2の凹部38Bと共に凹状収容部を形成している。 The support 30B is obtained by making the following changes to the support 30A. Note that the J-shaped groove portion 37D that communicates with the first recess portion 37C and functions as a vent hole for escaping the air present inside the first recess portion 37C to the outside includes the first recess portion 37C and the second recess portion 38B. And the concave accommodating part is formed.
 ・変更点1:第1の凹部37Cの断面形状及びJ字溝部37Dの断面形状を、長方形から図17の(b)に図示する形状に変更する。 Change point 1: The cross-sectional shape of the first concave portion 37C and the cross-sectional shape of the J-shaped groove portion 37D are changed from a rectangle to a shape illustrated in FIG.
 ・変更点2:第3支持面33の凹状収容部を取り囲む領域に接着層が形成されている。 · Change point 2: An adhesive layer is formed in a region surrounding the concave accommodating portion of the third support surface 33.
 ・変更点3:溝部であるJ字溝部37Dの形状を、L字型からJ字型に変更する(図17の(a)参照)。 · Change point 3: The shape of the J-shaped groove portion 37D, which is a groove portion, is changed from an L-shape to a J-shape (see FIG. 17A).
 〔変更点1〕
 第1の凹部37Cの断面形状及びJ字溝部37Dの断面形状について、図17の(b)を参照して説明する。第1の凹部37Cの断面形状及びJ字溝部37Dの断面形状は同様であるので、ここでは、第1の凹部37Cの断面形状について説明する。図17の(b)に示すように、第1の凹部37Cの断面形状は、第3支持面33に形成された開口部からの深さ(図示した座標系におけるz軸方向に対する距離)が深くなればなるほど、その幅(図示した座標系におけるx軸方向に対する距離)が狭くなるように構成されている。換言すれば、第1の凹部37Cの幅は、開口部からの深さが最も深い底部において最も狭く、開口部において最も広く、底部から開口部に近づくにしたがって広くなるように構成されている。
[Change 1]
The cross-sectional shape of the first concave portion 37C and the cross-sectional shape of the J-shaped groove portion 37D will be described with reference to FIG. Since the cross-sectional shape of the first concave portion 37C and the cross-sectional shape of the J-shaped groove portion 37D are similar, the cross-sectional shape of the first concave portion 37C will be described here. As shown in FIG. 17B, the cross-sectional shape of the first recess 37C is deep from the opening formed in the third support surface 33 (distance relative to the z-axis direction in the coordinate system shown). As the distance increases, the width (distance with respect to the x-axis direction in the illustrated coordinate system) becomes narrower. In other words, the width of the first recess 37C is configured to be narrowest at the bottom where the depth from the opening is the deepest, widest at the opening, and wider from the bottom toward the opening.
 なお、第1の凹部37Cの幅は、底部から開口部に近づくにしたがって狭くなる部分を含まなければよく、図17の(b)に示すように、開口部からの深さに対してその幅が変化しない部分を含んでいてもよい。 Note that the width of the first recess 37C does not need to include a portion that becomes narrower as it approaches the opening from the bottom. As shown in FIG. 17B, the width of the first recess 37C with respect to the depth from the opening. It may include a portion where does not change.
 第1の凹部37Cの幅が、底部から開口部に近づくにしたがって広くなるように構成されていることによって、第1の凹部37Cに充填され硬化した、樹脂モールド部21Bを形成する樹脂材が、支持体30Bから剥離しやすくなる。したがって、アンテナ装置1β’が様々な温度変化にさらされた場合に、支持体30Bと樹脂モールド部21Bとの界面である第1界面において、樹脂モールド部21Bが支持体30Bから剥離しやすくなる。その結果、樹脂モールド部21Bとフィルムアンテナ10との界面である第2界面において樹脂モールド部21Bがフィルムアンテナ10から剥離することを防止することができる。したがって、アンテナ装置1β’は、アンテナ装置1βと比較して、フィルムアンテナ10の耐水性が劣化することを防止することができる。 The resin material forming the resin mold portion 21B, which is filled and cured in the first concave portion 37C, is configured such that the width of the first concave portion 37C increases from the bottom toward the opening. It becomes easy to peel from the support 30B. Therefore, when the antenna device 1β ′ is exposed to various temperature changes, the resin mold part 21B is easily peeled off from the support 30B at the first interface that is the interface between the support 30B and the resin mold part 21B. As a result, it is possible to prevent the resin mold portion 21B from being peeled off from the film antenna 10 at the second interface, which is the interface between the resin mold portion 21B and the film antenna 10. Therefore, the antenna device 1β ′ can prevent the water resistance of the film antenna 10 from deteriorating compared to the antenna device 1β.
 なお、第1の凹部37Cの表面は、できるだけ滑らかに形成されていることが好ましい。第1の凹部37Cの表面に凹凸が形成されている場合、第1の凹部37Cに充填された樹脂材がその凹凸に隅々にまで入り込み、支持体30Bと樹脂モールド部21Bとの間に生じる接着力が高まること(アンカー効果)が考えられる。第1の凹部37Cの表面をできるだけ滑らかに形成しておくことによって、アンカー効果を抑制し、支持体30Bと樹脂モールド部21Bとの間に生じる接着力を抑制することができる。 Note that the surface of the first recess 37C is preferably formed as smoothly as possible. When unevenness is formed on the surface of the first concave portion 37C, the resin material filled in the first concave portion 37C enters the unevenness to every corner, and is generated between the support 30B and the resin mold portion 21B. It can be considered that the adhesive strength is increased (anchor effect). By forming the surface of the first concave portion 37C as smoothly as possible, the anchor effect can be suppressed, and the adhesive force generated between the support 30B and the resin mold portion 21B can be suppressed.
 また、より確実に樹脂モールド部21Bがフィルムアンテナ10から剥離することを防止するために、樹脂材を充填される前の第1の凹部37Cの表面に離型材を塗布しておいてもよい。この構成によれば、樹脂材により形成された樹脂モールド部21Bが第1の凹部37Cの表面から剥離しやすくなる。 Further, in order to more reliably prevent the resin mold part 21B from being peeled off from the film antenna 10, a release material may be applied to the surface of the first recess 37C before being filled with the resin material. According to this configuration, the resin mold portion 21B formed of a resin material is easily peeled from the surface of the first recess 37C.
 〔変更点2〕
 図17の(a)に示すように、凹状収容部である第1の凹部37C、第2の凹部38B、及びJ字溝部37Dを取り囲む領域には、接着層である両面テープ33c形成されている。なお、接着層としては、両面テープの代わりに接着剤を用いてもよい。図17の(b)に示すように、フィルムアンテナ10は、両面テープ33cを用いて支持体30Bの第3支持面に対して接着されている。したがって、充填工程(ステップS106、図16参照)において第1の凹部37C内に充填された液状の樹脂材が、支持体30Bとフィルムアンテナ10との間に流出することを容易に防止することができる。
[Change 2]
As shown in FIG. 17A, a double-sided tape 33c, which is an adhesive layer, is formed in a region surrounding the first concave portion 37C, the second concave portion 38B, and the J-shaped groove portion 37D, which are concave accommodating portions. . As the adhesive layer, an adhesive may be used instead of the double-sided tape. As shown in FIG. 17B, the film antenna 10 is adhered to the third support surface of the support 30B using a double-sided tape 33c. Therefore, it is possible to easily prevent the liquid resin material filled in the first recess 37C from flowing out between the support 30B and the film antenna 10 in the filling step (see step S106, FIG. 16). it can.
 支持体30Aを備えているアンテナ装置1βを製造する場合、図16に図示するステップS106のように、治具100を用いて支持体30Aを挟持した状態で樹脂材を第1の凹部37A内に充填していた。しかし、支持体30Bを備えているアンテナ装置1β’を製造する場合、治具100を用いて支持体30Bを挟持していない状態であっても第1の凹部37Cに樹脂材を充填することができる。すなわち、加圧工程S104を省略することができる。 When manufacturing the antenna device 1β including the support 30A, the resin material is placed in the first recess 37A in a state where the support 30A is sandwiched using the jig 100 as in step S106 illustrated in FIG. It was filling. However, when the antenna device 1β ′ including the support 30B is manufactured, the resin material can be filled into the first concave portion 37C even when the support 30B is not sandwiched using the jig 100. it can. That is, the pressurizing step S104 can be omitted.
 〔変更点3〕
 アンテナ装置1β’が備えている支持体30Bには、第1の凹部37Cの内部と支持体30Bとの外部を連通する溝部として、L字溝部37Bの代わりにJ字溝部37が形成されている。なお、第1の凹部37Cの内部と支持体30Bとの外部を連通する溝部の形状は、L字型又はJ字型に限定されず、それ以外の形状であってもよい。
[Change 3]
In the support 30B provided in the antenna device 1β ′, a J-shaped groove 37 is formed instead of the L-shaped groove 37B as a groove communicating the inside of the first recess 37C and the outside of the support 30B. . In addition, the shape of the groove part which connects the inside of the 1st recessed part 37C and the exterior of the support body 30B is not limited to L shape or J shape, and other shapes may be sufficient.
 〔アンテナ装置1β’の製造方法〕
 アンテナ装置1β’の製造方法は、アンテナ装置1βの製造方法と比較して以下の点が異なる。なお、アンテナ装置1βの製造方法と同様の工程に関しては、同じステップ番号を付し、その説明を省略する。
[Method for Manufacturing Antenna Device 1β ′]
The manufacturing method of the antenna device 1β ′ is different from the manufacturing method of the antenna device 1β in the following points. In addition, the same step number is attached | subjected about the process similar to the manufacturing method of the antenna apparatus 1β, and the description is abbreviate | omitted.
 (製造方法の変更点1)
 巻き付け工程に先立って、すなわち、支持体30Bを用意する工程と巻き付け工程との間において、第3支持面33の凹状収容部(第1の凹部37C、第2の凹部38B、及びJ字溝部37D)を取り囲む領域に接着層(両面テープ33c)を形成する接着層形成工程を更に含む。
(Changes in manufacturing method 1)
Prior to the winding step, that is, between the step of preparing the support 30B and the winding step, the concave accommodating portion (the first concave portion 37C, the second concave portion 38B, and the J-shaped groove portion 37D of the third support surface 33). ) Further includes an adhesive layer forming step of forming an adhesive layer (double-sided tape 33c) in a region surrounding the adhesive layer.
 (製造方法の変更点2)
 巻き付け工程は、フィルムアンテナ10を支持体30Bに巻き付けるときに、接着層(両面テープ33c)を用いて、フィルムアンテナ10を支持体30Bに接着する接着工程を更に含む。
(Changes in manufacturing method 2)
The winding step further includes an adhesion step of adhering the film antenna 10 to the support 30B using an adhesive layer (double-sided tape 33c) when the film antenna 10 is wound around the support 30B.
 なお、アンテナ装置1β’の製造方法においては、加圧工程S104を省略することができる。すなわち、樹脂材を第1の凹部37Cに充填するために、治具100を使用しなくてもよい。したがって、アンテナ装置1β’は、アンテナ装置1βに比べて少ない工数で製造することが可能である。 In the manufacturing method of the antenna device 1β ′, the pressurizing step S104 can be omitted. In other words, the jig 100 does not have to be used to fill the first concave portion 37C with the resin material. Therefore, the antenna device 1β ′ can be manufactured with fewer man-hours than the antenna device 1β.
 ≪第1~第3の実施形態に係るアンテナ装置のスポイラーへの収納方法≫
 第1~第3の実施形態に係るアンテナ装置1,1α,1βは、自動車のスポイラー52、特に、器部と蓋部とに分割された筐体を有するスポイラー52への収納に適している。以下、このようなスポイラー52に第1の実施形態に係るアンテナ装置1を収納する収納方法について、図18を参照して説明する。図18は、アンテナ装置1をスポイラー52に収納する収納方法を示す図である。なお、図18においては、収納方法を分かり易く図示するために、アンテナ装置1及びスポイラー52の形状を適宜模式化している。
<< Housing Method for Spoiler of Antenna Device According to First to Third Embodiments >>
The antenna devices 1, 1α and 1β according to the first to third embodiments are suitable for housing in a spoiler 52 of an automobile, particularly a spoiler 52 having a casing divided into a vessel part and a lid part. Hereinafter, a housing method for housing the antenna device 1 according to the first embodiment in such a spoiler 52 will be described with reference to FIG. FIG. 18 is a diagram illustrating a storage method for storing the antenna device 1 in the spoiler 52. In FIG. 18, the shapes of the antenna device 1 and the spoiler 52 are modeled as appropriate for easy understanding of the storage method.
 スポイラー52は、図18の(a)に示すように、器部52aと蓋部52bとに分割された筐体を有している。器部52aには、互いに連通した第1収納室52a1と第2収納室52a2とが設けられている。第1収納室52a1は、主にアンテナ装置1の支持体30を収納するための空間であり、第2収納室52a2と比べて深さが深い。第1収容室52a1には、互いに対向する1対の支持板52a3,52a4が設けられている。一方、第2収納室52a2は、主にアンテナ装置1のフィルムアンテナ10を収納するための空間であり、第1収納室52a1と比べて深さが浅い。第1収納室52a1及び第2収納室52a2は、上方が開放されており、アンテナ装置1は、第1収納室52a1及び第2収納室52a2に上方から収納される。 As shown in FIG. 18A, the spoiler 52 has a housing divided into a vessel portion 52a and a lid portion 52b. The container portion 52a is provided with a first storage chamber 52a1 and a second storage chamber 52a2 that communicate with each other. The first storage chamber 52a1 is a space mainly for storing the support 30 of the antenna device 1, and has a deeper depth than the second storage chamber 52a2. The first storage chamber 52a1 is provided with a pair of support plates 52a3 and 52a4 that face each other. On the other hand, the second storage chamber 52a2 is a space for mainly storing the film antenna 10 of the antenna device 1, and is shallower than the first storage chamber 52a1. The first storage chamber 52a1 and the second storage chamber 52a2 are open at the top, and the antenna device 1 is stored in the first storage chamber 52a1 and the second storage chamber 52a2 from above.
 アンテナ装置1の支持体30は、図18の(b)に示すように、第1収納室52a1において支持板52a3,52a4に挟持される。この際、支持体30の左右の側面を構成する側壁に形成された弾性突起39a1,39a2が1対の支持板52a3,52a4に形成された開口に嵌合する。これにより、第1収容室52a1における支持体30の位置が固定され、支持体30が支持板52a3,52a4から脱落し難くなる。支持体30から伸びるフィルムアンテナ10は、図18の(b)に示すように、第1収容室52a1と連通した第2収納室52a2に収納される。また、支持体30から引き出された同軸ケーブル20は、図18の(b)に示すように、第1収納室52a1の前側壁に形成された貫通孔(不図示)を通って、第1収納室52a1の外部に引き出される。第1収納室52a1及び第2収納室52a2は、図18の(b)に示すように、アンテナ装置1が収納された後、図18の(c)に示すように、蓋部52bによって閉塞される。 The support 30 of the antenna device 1 is sandwiched between support plates 52a3 and 52a4 in the first storage chamber 52a1 as shown in FIG. 18 (b). At this time, the elastic protrusions 39a1 and 39a2 formed on the side walls constituting the left and right side surfaces of the support 30 are fitted into the openings formed in the pair of support plates 52a3 and 52a4. Thereby, the position of the support body 30 in the 1st storage chamber 52a1 is fixed, and it becomes difficult for the support body 30 to drop | omit from support board 52a3, 52a4. As shown in FIG. 18B, the film antenna 10 extending from the support 30 is stored in a second storage chamber 52a2 that communicates with the first storage chamber 52a1. Further, as shown in FIG. 18B, the coaxial cable 20 pulled out from the support 30 passes through a through hole (not shown) formed in the front side wall of the first storage chamber 52a1 and is stored in the first storage. It is pulled out of the chamber 52a1. As shown in FIG. 18B, the first storage chamber 52a1 and the second storage chamber 52a2 are closed by the lid 52b after the antenna device 1 is stored, as shown in FIG. 18C. The
 なお、第2及び第3の実施形態に係るアンテナ装置1α,1βも、第1の実施形態に係るアンテナ装置1をスポイラー52に収納する方法と同じ方法を用いてスポイラー52に収納することが可能である。 The antenna devices 1α and 1β according to the second and third embodiments can also be housed in the spoiler 52 using the same method as the method for housing the antenna device 1 according to the first embodiment in the spoiler 52. It is.
 ≪第4の実施形態≫
 本発明の第4の実施形態に係るアンテナ装置1γの構成について、図19を参照して説明する。図19の(a)は、アンテナ装置1γの斜視図であり、図19の(b)は、アンテナ装置1γの平面図である。アンテナ装置1γは、第1の実施形態に係るアンテナ装置1と同様、フィルムアンテナ10と、同軸ケーブル20と、支持体30とを備えている。
<< Fourth Embodiment >>
The configuration of the antenna device 1γ according to the fourth embodiment of the present invention will be described with reference to FIG. FIG. 19A is a perspective view of the antenna device 1γ, and FIG. 19B is a plan view of the antenna device 1γ. Similar to the antenna device 1 according to the first embodiment, the antenna device 1γ includes a film antenna 10, a coaxial cable 20, and a support 30.
 アンテナ装置1γは、第1の実施形態に係るアンテナ1を、以下の点で変更したものである。 The antenna device 1γ is obtained by changing the antenna 1 according to the first embodiment in the following points.
 第1の変更点:第1の実施形態に係るアンテナ装置1においては、同軸ケーブル20が支持体30内でフィルムアンテナ10を幅方向に横断し、支持体30の側方から引き出されているのに対して、本実施形態に係るアンテナ装置1γにおいては、同軸ケーブル20が支持体30内でフィルムアンテナ10を幅方向に横断することなく、支持体30の前方から引き出されている。このため、本実施形態に係るアンテナ装置1γにおいては、支持体30の前方から同軸ケーブル20を引き出すための通路として、支持体30の前側面を構成する側壁30aの上端中央に凹部30a1が形成されると共に、支持体30の側方から引き出された同軸ケーブル20を保持するための第3保持部36が省略されている。なお、側壁30aの上端中央に凹部30a1を形成し、これを同軸ケーブル20の通路として利用する代わりに、側壁30aの中央に貫通孔を形成し、これを同軸ケーブル20の通路として利用してもよい。 First Modification: In the antenna device 1 according to the first embodiment, the coaxial cable 20 crosses the film antenna 10 in the width direction in the support 30 and is drawn from the side of the support 30. On the other hand, in the antenna device 1γ according to this embodiment, the coaxial cable 20 is drawn from the front of the support 30 without traversing the film antenna 10 in the width direction in the support 30. For this reason, in the antenna device 1γ according to the present embodiment, a recess 30a1 is formed at the center of the upper end of the side wall 30a constituting the front side surface of the support 30 as a path for drawing the coaxial cable 20 from the front of the support 30. In addition, the third holding portion 36 for holding the coaxial cable 20 drawn from the side of the support 30 is omitted. Instead of forming the recess 30a1 at the center of the upper end of the side wall 30a and using it as a passage for the coaxial cable 20, a through hole may be formed at the center of the side wall 30a and used as a passage for the coaxial cable 20. Good.
 第2の変更点:第1の実施形態に係るアンテナ装置1においては、アンテナ装置1をスポイラー52に固定するための一対の弾性突起39a1,39a2が、支持体30の左右の側面に形成されているのに対して、本実施形態に係るアンテナ装置1γにおいては、アンテナ装置1をスポイラー52に固定するために突起39b1,39b2が、第2保持部35の左側面及び支持体30の右側面の前端から前方に延伸する一対の弾性板39の先端近傍に形成されている。 Second Modification: In the antenna device 1 according to the first embodiment, a pair of elastic protrusions 39a1 and 39a2 for fixing the antenna device 1 to the spoiler 52 are formed on the left and right side surfaces of the support 30. On the other hand, in the antenna device 1γ according to the present embodiment, the protrusions 39b1 and 39b2 are provided on the left side surface of the second holding portion 35 and the right side surface of the support body 30 in order to fix the antenna device 1 to the spoiler 52. It is formed in the vicinity of the tip of a pair of elastic plates 39 extending forward from the front end.
 第3の変更点:第1の実施形態に係るアンテナ装置1においては、支持体30の下面を構成する支持体30の底板が支持体30の前側面で終端しているのに対して、本実施形態に係るアンテナ装置1γにおいては、第3支持面33を構成する支持体30の底板が、フィルムアンテナ10を支持するための支持板33eとして、支持体30の前側面よりも前方にまで延伸されている。支持板33eの左右の辺には、段差33e1,33e2が形成されており、段差33e1,33e2の前方における支持板33eの幅が段差33e1,33e2の後方における支持板33eの幅よりも広くなっている。 Third change: In the antenna device 1 according to the first embodiment, the bottom plate of the support body 30 constituting the lower surface of the support body 30 terminates on the front side surface of the support body 30, whereas In the antenna device 1γ according to the embodiment, the bottom plate of the support 30 constituting the third support surface 33 extends forward as compared to the front side surface of the support 30 as a support plate 33e for supporting the film antenna 10. Has been. Steps 33e1 and 33e2 are formed on the left and right sides of the support plate 33e, and the width of the support plate 33e in front of the steps 33e1 and 33e2 is wider than the width of the support plate 33e in the rear of the steps 33e1 and 33e2. Yes.
 第1の実施形態に係るアンテナ装置1が、器部と蓋部とに分割された筐体を有するスポイラー52に収納することを意図して設計されているのに対して、本実施形態に係るアンテナ装置1γは、挿入口が形成された筐体を有するスポイラー52に収納することを意図して設計されている。上記の変更点は、何れもスポイラー52への収納方法の違いに応じたものである。なお、本実施形態に係るアンテナ装置1γを挿入口が形成された筐体を有するスポイラー52に搭載する方法については、参照する図面を代えて後述する。 The antenna device 1 according to the first embodiment is designed to be housed in a spoiler 52 having a housing divided into a vessel portion and a lid portion, whereas the antenna device 1 according to this embodiment The antenna device 1γ is designed to be housed in a spoiler 52 having a housing in which an insertion port is formed. Each of the above changes corresponds to a difference in the storage method in the spoiler 52. Note that a method for mounting the antenna device 1γ according to the present embodiment on the spoiler 52 having a housing in which an insertion port is formed will be described later with reference to another drawing.
 ≪第4の実施形態に係るアンテナ装置のスポイラーへの収納方法≫
 第4の実施形態に係るアンテナ装置1γは、自動車のスポイラー52、特に、挿入口が形成された筐体を有するスポイラー52への収納に適している。以下、このようなスポイラー52に第4の実施形態に係るアンテナ装置1γを収納する収納方法について、図20を参照して説明する。図20は、アンテナ装置1γをスポイラー52に収納する収納方法を示す図である。なお、図20においては、収納方法を分かり易く図示するために、アンテナ装置1γ及びスポイラー52の形状を適宜模式化している。
<< Housing Method for Antenna Device according to Fourth Embodiment to Spoiler >>
The antenna device 1γ according to the fourth embodiment is suitable for housing in a spoiler 52 of an automobile, particularly a spoiler 52 having a housing in which an insertion port is formed. Hereinafter, a housing method for housing the antenna device 1γ according to the fourth embodiment in such a spoiler 52 will be described with reference to FIG. FIG. 20 is a diagram illustrating a storage method for storing the antenna device 1γ in the spoiler 52. In FIG. 20, the shapes of the antenna device 1γ and the spoiler 52 are modeled as appropriate in order to easily illustrate the storage method.
 スポイラー52は、図20の(a)に示すように、筐体上面を構成する天板52dが筐体前面を構成する側壁よりも前方に迫り出した形状を有している。筐体内には、アンテナ装置1γの支持体30を収納するための収納室が形成されており、筐体前面を構成する側壁には、筐体内にアンテナ装置1γの支持体30を挿入するための挿入口52cが形成されている。また、天板52dの下面には、アンテナ装置1γの支持板33eを保持するためのL型突起52d1,52d2が形成されている。 As shown in FIG. 20A, the spoiler 52 has a shape in which a top plate 52d constituting the upper surface of the casing protrudes forward from the side wall constituting the front surface of the casing. A housing chamber for housing the support body 30 of the antenna device 1γ is formed in the housing, and a side wall constituting the front surface of the housing is for inserting the support body 30 of the antenna device 1γ into the housing. An insertion port 52c is formed. In addition, L-shaped protrusions 52d1 and 52d2 for holding the support plate 33e of the antenna device 1γ are formed on the lower surface of the top plate 52d.
 スポイラー52へのアンテナ装置1γの収納は、以下のように行われる。 Storing the antenna device 1γ in the spoiler 52 is performed as follows.
 まず、図20の(b)に示すように、アンテナ装置1γの支持板33eをスポイラー52の天板52dに接触させる。この際、支持板33eのうち、段差33e1,33e2よりも後方の幅の狭い部分をL型突起52d1,52d2の間に通すことで、支持板33eをL型突起52d1,52d2と干渉させることなく、支持板33eを天板52dに接触させることができる。 First, as shown in FIG. 20B, the support plate 33e of the antenna device 1γ is brought into contact with the top plate 52d of the spoiler 52. At this time, a portion of the support plate 33e having a narrower width behind the steps 33e1 and 33e2 is passed between the L-shaped protrusions 52d1 and 52d2, so that the support plate 33e does not interfere with the L-shaped protrusions 52d1 and 52d2. The support plate 33e can be brought into contact with the top plate 52d.
 次に、図20の(c)に示すように、支持板33eをスポイラー52の天板52dに接触させたまま、アンテナ装置1γを後方に移動し、支持体30をスポイラー52の挿入口52cから筐体内に挿入する。そうすると、アンテナ装置1γの支持体30がスポイラー52の筐体内に収納され、アンテナ装置1γの支持板33eのうち、段差33e1,33e2よりも前方の幅の広い部分がL型突起52d1,52d2によって保持される。一対の弾性板39を内側に撓ませ、突起部39b1,39b2まで含めて支持体30がスポイラー52の筐体内に収納されると一対の弾性板39の弾性変形がもとの状態に戻り、突起部39b1,39b2がスポイラー52の筐体前面を構成する側壁に掛かり、アンテナ装置1γがスポイラー52から意図せず抜けてしまうことを防ぐ。なお、スポイラー52からアンテナ装置1γを取り出す場合には、弾性板39の突起部39b1,39b2よりも前方の部分39c1,39c2を内側に押して弾性体39を内側に撓ませ、突起部39b1,39b2がスポイラー52の筐体前面を構成する側壁に掛からないようにしてから、スポイラー52からアンテナ装置1γを引き抜けばよい。 Next, as shown in FIG. 20C, the antenna device 1γ is moved backward while the support plate 33 e is in contact with the top plate 52 d of the spoiler 52, and the support 30 is moved from the insertion port 52 c of the spoiler 52. Insert into the housing. As a result, the support 30 of the antenna device 1γ is housed in the housing of the spoiler 52, and portions of the support plate 33e of the antenna device 1γ that are wider in front of the steps 33e1 and 33e2 are held by the L-shaped protrusions 52d1 and 52d2. Is done. When the pair of elastic plates 39 are bent inward and the support 30 including the protruding portions 39b1 and 39b2 is housed in the housing of the spoiler 52, the elastic deformation of the pair of elastic plates 39 returns to the original state, and the protrusions The portions 39b1 and 39b2 are hung on the side wall that forms the front surface of the casing of the spoiler 52, and the antenna device 1γ is prevented from unintentionally coming off the spoiler 52. When the antenna device 1γ is taken out from the spoiler 52, the elastic body 39 is bent inward by pushing the portions 39c1 and 39c2 ahead of the protrusions 39b1 and 39b2 of the elastic plate 39 so that the protrusions 39b1 and 39b2 The antenna device 1γ may be pulled out from the spoiler 52 after being prevented from hanging on the side wall that forms the front surface of the housing of the spoiler 52.
 ≪まとめ≫
 上記の課題を解決するために、本発明に係るアンテナ装置は、フィルムアンテナと、前記フィルムアンテナの給電部に接続されたケーブルと、前記フィルムアンテナの少なくとも一部分が巻き付けられた支持体と、を備え、前記支持体は、前記ケーブルを保持するための保持手段を有している、ことを特徴とする。
≪Summary≫
In order to solve the above problems, an antenna device according to the present invention includes a film antenna, a cable connected to a feeding portion of the film antenna, and a support around which at least a part of the film antenna is wound. The support has a holding means for holding the cable.
 上記の構成によれば、上記フィルムアンテナが上記支持体に巻き付けられているため、上記フィルムアンテナが備えるアンテナ導体の立体構造の変化を抑えることができる。すなわち、アンテナ特性の一定性を高めることができる。また、上記の構成によれば、上記ケーブルが上記支持体に保持されているため、ケーブルの引っ張りに対する耐久性を高めることができる。 According to the above configuration, since the film antenna is wound around the support, a change in the three-dimensional structure of the antenna conductor included in the film antenna can be suppressed. That is, the uniformity of the antenna characteristics can be improved. Moreover, according to said structure, since the said cable is hold | maintained at the said support body, durability with respect to the tension | pulling of a cable can be improved.
 しかも、上記の構成によれば、支持体がアンテナ特性の一定性を高める機能とケーブルの引っ張りに対する耐久性を高める機能とを担っている。したがって、構造の複雑化や大型化を招来することなく、アンテナ特性の一定性とケーブルの引っ張りに対する耐久性とを高めることができる。 In addition, according to the above configuration, the support body has a function of improving the uniformity of the antenna characteristics and a function of improving the durability against cable pulling. Therefore, it is possible to improve the uniformity of the antenna characteristics and the durability against cable pulling without incurring a complicated structure or an increase in size.
 本明細書において、フィルムアンテナを支持体に巻き付けるという表現は、フィルムアンテナを支持体の表面に沿うように変形させて、フィルムアンテナを支持体から離脱されない状態にすることを意味する。なお、上記の表現は、支持体の周りでフィルムアンテナが一周以上巻かれることのみを含意するものではない。例えば、支持体が直方体の部材である場合、フィルムアンテナを支持体の4面(例えば、上面、右側面、下面、左側面)に沿うように変形させて、フィルムアンテナを支持体から離脱されない状態にする態様だけでなく、フィルムアンテナを支持体の3面(例えば、上面、右側面、下面)に沿うように変形させて、フィルムアンテナを支持体から離脱されない状態にする態様や、フィルムアンテナを支持体の2面(例えば、上面、右側面)に沿うように変形させて、フィルムアンテナを支持体から離脱されない状態にする態様なども、上記の表現の意味範囲に含まれる。 In this specification, the expression that the film antenna is wound around the support means that the film antenna is deformed along the surface of the support so that the film antenna is not detached from the support. Note that the above expression does not imply that the film antenna is wound more than once around the support. For example, when the support is a rectangular parallelepiped member, the film antenna is deformed along the four surfaces of the support (for example, the upper surface, the right side, the lower surface, and the left side) and the film antenna is not detached from the support In addition to the embodiment, the film antenna is deformed so as to be along the three surfaces (for example, the upper surface, the right side surface, and the lower surface) of the support so that the film antenna is not detached from the support. An aspect in which the film antenna is not detached from the support by being deformed along two surfaces (for example, the upper surface and the right side) of the support is also included in the meaning range of the above expression.
 本発明の一態様に係るアンテナ装置において、前記支持体は、第1支持面と、前記第1支持面に交わる第2支持面と、前記第1支持面と対向し、前記第2支持面に交わる第3支持面とを有しており、前記フィルムアンテナは、前記第1支持面、前記第2支持面、及び、前記第3支持面に接触するように、前記支持体に巻き付けられており、前記保持手段は、前記第1支持面及び前記第2支持面に沿う方向に前記ケーブルの一部分が延在するように、前記ケーブルを保持する第1保持部を有している、ことが好ましい。 In the antenna device according to an aspect of the present invention, the support includes a first support surface, a second support surface that intersects the first support surface, and the first support surface, and the second support surface. And the film antenna is wound around the support body so as to contact the first support surface, the second support surface, and the third support surface. The holding means preferably has a first holding portion for holding the cable such that a part of the cable extends in a direction along the first support surface and the second support surface. .
 上記の構成によれば、上記フィルムアンテナが上記3つの支持面に接触するように上記支持体に巻き付けられている。したがって、上記フィルムアンテナが備えるアンテナ導体の立体構造の変化をより一層抑えることができる。また、ケーブルにおいて前記第1支持面及び前記第2支持面に沿う方向に延在する部分の配線経路は、アンテナ特性に大きな影響を及ぼす。これに対して、上記の構成によれば、当該部分を第1保持部により保持しているので、アンテナ特性を更に一定化させることができる。 According to the above configuration, the film antenna is wound around the support so as to be in contact with the three support surfaces. Therefore, the change in the three-dimensional structure of the antenna conductor provided in the film antenna can be further suppressed. In addition, the wiring path of the portion of the cable that extends in the direction along the first support surface and the second support surface greatly affects the antenna characteristics. On the other hand, according to said structure, since the said part is hold | maintained by the 1st holding | maintenance part, an antenna characteristic can be made still more constant.
 本発明の一態様に係るアンテナ装置において、前記第1保持部は、前記第1支持面の前記第2支持面側と反対側の端部よりも前方に突出した位置に設けられている、ことが好ましい。 In the antenna device according to an aspect of the present invention, the first holding portion is provided at a position protruding forward from an end portion of the first support surface opposite to the second support surface side. Is preferred.
 上記の構成によれば、上記フィルムアンテナを上記支持体に巻き付けた後でも、上記ケーブルを上記第1保持部に固定する作業を実施することができる。 According to the above configuration, the work of fixing the cable to the first holding portion can be performed even after the film antenna is wound around the support.
 本発明の一態様に係るアンテナ装置において、前記フィルムアンテナは、上記ケーブルのホット側導体に接続された第1アンテナ導体と、上記ケーブルのコールド側導体に接続された第2アンテナ導体とを有しており、前記フィルムアンテナは、前記第1アンテナ導体の主要部が前記第1支持面に沿うように、かつ、前記第2アンテナ導体の主要部が前記第3支持面に沿うように、前記支持体に巻き付けられており、前記第1保持部は、前記ケーブルにおいて前記第1支持面及び前記第2支持面に沿う方向に延在する部分を、当該部分から前記第1支持面までの距離が当該部分から前記第3支持面までの距離と等しくなるように保持する、ことが好ましい。 In the antenna device according to one aspect of the present invention, the film antenna includes a first antenna conductor connected to a hot-side conductor of the cable and a second antenna conductor connected to a cold-side conductor of the cable. The film antenna is supported so that a main portion of the first antenna conductor is along the first support surface and a main portion of the second antenna conductor is along the third support surface. The first holding portion is a portion of the cable that extends in a direction along the first support surface and the second support surface, and a distance from the portion to the first support surface. It is preferable to hold the portion so as to be equal to the distance from the portion to the third support surface.
 上記の構成によれば、より良好なアンテナ特性が得られる。 According to the above configuration, better antenna characteristics can be obtained.
 本発明の一態様に係るアンテナ装置において、前記フィルムアンテナは、上記ケーブルのホット側導体に接続された第1アンテナ導体と、上記ケーブルのコールド側導体に接続された第2アンテナ導体とを有しており、前記フィルムアンテナは、前記第1アンテナ導体の主要部が前記第1支持面に沿うように、かつ、前記第2アンテナ導体の主要部が前記第3支持面に沿うように、前記支持体に巻き付けられており、前記第1保持部は、前記ケーブルにおいて前記第1支持面及び前記第2支持面に沿う方向に延在する部分を、当該部分から前記第1支持面までの距離が当該部分から前記第3支持面までの距離以上になるように保持する、ことが好ましい。 In the antenna device according to one aspect of the present invention, the film antenna includes a first antenna conductor connected to a hot-side conductor of the cable and a second antenna conductor connected to a cold-side conductor of the cable. The film antenna is supported so that a main portion of the first antenna conductor is along the first support surface and a main portion of the second antenna conductor is along the third support surface. The first holding portion is a portion of the cable that extends in a direction along the first support surface and the second support surface, and a distance from the portion to the first support surface. It is preferable to hold so that it may become more than the distance from the said part to the said 3rd support surface.
 上記の構成によれば、より良好なアンテナ特性が得られる。 According to the above configuration, better antenna characteristics can be obtained.
 本発明の一態様に係るアンテナ装置において、前記保持手段は、前記第1支持面に沿うと共に前記第2支持面に交わる方向に前記ケーブルの一部分が延在するように、前記ケーブルを保持する第2保持部を更に有している、ことが好ましい。 In the antenna device according to an aspect of the present invention, the holding unit holds the cable such that a part of the cable extends along the first support surface and in a direction intersecting the second support surface. It is preferable to further have 2 holding parts.
 上記の構成によれば、ケーブルの引っ張りに対する耐久性を更に高めることができる。 According to the above configuration, durability against cable pulling can be further enhanced.
 本発明の一態様に係るアンテナ装置において、前記第2保持部は、前記フィルムアンテナの前記第1支持面に接触した領域と前記フィルムアンテナの前記第3支持面に接触した領域とに挟まれた空間領域の外部に設けられている、ことが好ましい。 In the antenna device according to an aspect of the present invention, the second holding portion is sandwiched between a region in contact with the first support surface of the film antenna and a region in contact with the third support surface of the film antenna. It is preferable to be provided outside the space region.
 上記の構成によれば、上記フィルムアンテナを上記支持体に巻き付けた後でも、上記ケーブルを上記第1保持部に固定する作業を実施することができる。 According to the above configuration, the work of fixing the cable to the first holding portion can be performed even after the film antenna is wound around the support.
 本発明の一態様に係るアンテナ装置において、前記第2保持部は、前記第3支持面に形成された凹状収容部の開口方向と同じ方向に開口した凹部を有しており、前記第1保持部は、それとは反対側の方向に開口した凹部を有している、ことが好ましい。 In the antenna device according to one aspect of the present invention, the second holding portion has a concave portion opened in the same direction as the opening direction of the concave accommodating portion formed in the third support surface, and the first holding portion. It is preferable that the part has a recessed part opened in the opposite direction.
 上記の構成によれば、ケーブルの引っ張りに対する耐久性を高めることができる。 According to the above configuration, durability against cable pulling can be enhanced.
 本発明の一態様に係るアンテナ装置において、前記第1及び第2保持部で保持された前記ケーブルが、前記第1保持部と前記第2保持部との間で前記第1及び第3支持面に交わる方向に延びるように構成されている、ことが好ましい。 In the antenna device according to an aspect of the present invention, the cable held by the first and second holding portions may be arranged between the first holding portion and the second holding portion. It is preferable that it is comprised so that it may extend in the direction which crosses.
 上記の構成によれば、ケーブルの引っ張りに対する耐久性を高めることができる。 According to the above configuration, durability against cable pulling can be enhanced.
 本発明の一態様に係るアンテナ装置において、前記第2保持部において前記ケーブルの屈曲した部分が接触する表面は、滑らかな曲面により構成されている、ことが好ましい。 In the antenna device according to one aspect of the present invention, it is preferable that a surface of the second holding portion that contacts a bent portion of the cable is configured by a smooth curved surface.
 上記の構成によれば、上記ケーブルの断線が生じる可能性を低減することができる。 According to the above configuration, it is possible to reduce the possibility that the cable is disconnected.
 本発明の一態様に係るアンテナ装置において、前記フィルムアンテナは、前記支持体の前記第1、第2及び第3支持面に接触するようにU字型に折り曲げられており、前記支持体における、前記第3支持面の前記第2支持面側と反対側の端部には、ガイドリングが形成されており、前記フィルムアンテナは、前記ガイドリングを貫通し、前記ガイドリングにより支持されている、ことが好ましい。 In the antenna device according to one aspect of the present invention, the film antenna is bent in a U shape so as to contact the first, second, and third support surfaces of the support, and in the support, A guide ring is formed at the end of the third support surface opposite to the second support surface, and the film antenna penetrates the guide ring and is supported by the guide ring. It is preferable.
 上記の構成によれば、上記フィルムアンテナを上記支持体に密着させることができる。したがって、アンテナ導体の立体構造の変化をより一層抑えることができる。 According to the above configuration, the film antenna can be brought into close contact with the support. Therefore, the change in the three-dimensional structure of the antenna conductor can be further suppressed.
 本発明の一態様に係るアンテナ装置において、前記給電部と前記ケーブルの接続部分は樹脂モールド部により覆われ、前記支持体は、前記樹脂モールド部を収容する凹状収容部を有している、ことが好ましい。 In the antenna device according to one aspect of the present invention, a connecting portion between the power feeding portion and the cable is covered with a resin mold portion, and the support has a concave accommodating portion that accommodates the resin mold portion. Is preferred.
 上記の構成によれば、上記給電部と上記ケーブルの接続部分は樹脂モールド部により覆われるとともに、上記ケーブルが上記支持体に保持されているため、ケーブルの引っ張りに対する耐久性を高めることができる。 According to the above configuration, the connecting portion between the power feeding portion and the cable is covered with the resin mold portion, and the cable is held by the support, so that durability against cable pulling can be enhanced.
 本発明の一態様に係るアンテナ装置において、前記樹脂モールド部は、前記フィルムアンテナの表面に形成される第1被覆部と、裏面に形成される第2被覆部とから構成され、
 前記第1及び第2被覆部は、前記フィルムアンテナに形成された開口部を介して連通している、ことが好ましい。
In the antenna device according to one aspect of the present invention, the resin mold portion is configured by a first covering portion formed on the surface of the film antenna and a second covering portion formed on the back surface,
It is preferable that the first and second covering portions communicate with each other through an opening formed in the film antenna.
 上記の構成によれば、フィルムアンテナに対する樹脂モールド部の接着強度を向上させることができ、フィルムアンテナから樹脂モールド部が剥離するのを防止することができる。
る。
According to said structure, the adhesive strength of the resin mold part with respect to a film antenna can be improved, and it can prevent that a resin mold part peels from a film antenna.
The
 本発明の一態様に係るアンテナ装置において、前記第3支持面の前記第2支持面との境界近傍に形成された前記凹状収容部に、前記樹脂モールド部の前記第1被覆部が収容されるように、前記フィルムアンテナが前記支持体に巻き付けられ、前記フィルムアンテナは、前記第3及び第2支持面の境界に沿って折り曲がる曲部が形成され、前記樹脂モールド部の第1及び第2被覆部の厚さは、前記曲部に近づくにしたがって薄くなっている、ことが好ましい。 In the antenna device according to one aspect of the present invention, the first covering portion of the resin mold portion is accommodated in the concave accommodating portion formed in the vicinity of the boundary between the third supporting surface and the second supporting surface. As described above, the film antenna is wound around the support, and the film antenna is formed with a bent portion that is bent along a boundary between the third and second support surfaces, and the first and second of the resin mold portion are formed. It is preferable that the thickness of the covering portion becomes thinner as the curved portion is approached.
 上記の構成によれば、例えば、ケーブルと給電部との接続部分が樹脂モールド部で覆われたフィルムアンテナを支持体に巻き付けたとき、樹脂モールド部がフィルムアンテナの曲部の近傍に配置される構成を採用した場合であっても、第1被覆部及び第2被覆部の各々がフィルムアンテナから剥離することを長期間に亘って防止できる。したがって、アンテナ装置の耐水性を長期間に亘って高い水準に保つことができる。その理由は、以下の通りである。 According to said structure, when the film antenna with which the connection part of the cable and the electric power feeding part was covered with the resin mold part was wound around a support body, for example, the resin mold part is arrange | positioned in the vicinity of the curved part of a film antenna. Even if it is a case where a structure is employ | adopted, it can prevent over a long period that each of a 1st coating | coated part and a 2nd coating | coated part peels from a film antenna. Therefore, the water resistance of the antenna device can be maintained at a high level over a long period. The reason is as follows.
 また、第1被覆部及び第2被覆部の各々の厚さは、フィルムアンテナの曲部に近づくにしたがって薄くなるように構成されているため、第1被覆部及び第2被覆部の各々は、曲部に近づくにしたがって、よりしなやかになるように構成されている。したがって、折り曲げにより生じる応力が緩和され、第1被覆部及び第2被覆部の曲部近傍に位置する端辺に集中するのを防止することができる。 In addition, since the thickness of each of the first covering portion and the second covering portion is configured to become thinner as approaching the curved portion of the film antenna, each of the first covering portion and the second covering portion is It is configured to become more flexible as it approaches the music section. Therefore, the stress generated by bending can be relieved, and it can be prevented that the stress is concentrated on the edges located near the curved portions of the first covering portion and the second covering portion.
 また本発明に係るアンテナ装置の製造方法は、フィルムアンテナの給電部にケーブルを接続する接続工程と、前記給電部及び当該給電部に接続されたケーブルの端部を覆う樹脂モールド部を形成する樹脂モールド部形成工程と、第1支持面と、前記第1支持面に交わる第2支持面と、前記第1支持面と対向し、前記第2支持面に交わる第3支持面とを有する支持体であって、前記ケーブルを保持するための保持手段を有するとともに、前記第3支持面に前記樹脂モールド部を収容するための凹状収容部を有する支持体を用意する工程と、前記凹状収容部に前記樹脂モールド部が収容されるように、前記フィルムアンテナを前記支持体に取り付けるとともに、前記第1支持面、前記第2支持面及び前記第3支持面に接触するように、前記フィルムアンテナを前記支持体に巻き付ける巻き付け工程と、前記保持手段に前記ケーブルを保持させ、前記第1支持面及び前記第2支持面に沿う方向に前記ケーブルの一部分が延在するように配線する配線工程と、を含んでいる。 The antenna device manufacturing method according to the present invention includes a connecting step of connecting a cable to a feeding portion of a film antenna, and a resin forming a resin mold portion that covers the feeding portion and an end of the cable connected to the feeding portion. A support having a mold part forming step, a first support surface, a second support surface that intersects the first support surface, and a third support surface that faces the first support surface and intersects the second support surface A step of providing a support having holding means for holding the cable and having a concave receiving portion for receiving the resin mold portion on the third support surface; and The film antenna is attached to the support so that the resin mold portion is accommodated, and the film antenna is contacted with the first support surface, the second support surface, and the third support surface. A winding step of winding a cable antenna around the support, and a wiring step of causing the holding means to hold the cable and wiring so that a part of the cable extends in a direction along the first support surface and the second support surface And.
 上記の製造方法によれば、上述した本発明に係るアンテナ装置を用意に製造することができる。 According to the above manufacturing method, the above-described antenna device according to the present invention can be easily manufactured.
 本発明の一態様に係るアンテナ装置の製造方法は、フィルムアンテナの給電部にケーブルを接続する接続工程と、第1支持面と、前記第1支持面に交わる第2支持面と、前記第1支持面と対向し、前記第2支持面に交わる第3支持面とを有する支持体であって、前記ケーブルを保持するための保持手段を有するとともに、前記第3支持面に前記給電部を収容するための凹状収容部を有する支持体を用意する工程と、前記凹状収容部に前記給電部が収容されるように、前記フィルムアンテナを前記支持体に取り付けるとともに、前記第1支持面、前記第2支持面及び前記第3支持面に接触するように、前記フィルムアンテナを前記支持体に巻き付ける巻き付け工程と、前記保持手段に前記ケーブルを保持させ、前記第1支持面及び前記第2支持面に沿う方向に前記ケーブルの一部分が延在するように配線する配線工程と、前記凹状収容部に樹脂材を充填して硬化させることで、前記凹状収容部に収容された前記給電部及び当該給電部に接続されたケーブルの端部を覆う樹脂モールド部を形成する樹脂モールド部形成工程と、を含んでいる。 A method for manufacturing an antenna device according to an aspect of the present invention includes a connection step of connecting a cable to a feeding portion of a film antenna, a first support surface, a second support surface intersecting the first support surface, and the first A support body having a third support surface facing the support surface and intersecting the second support surface, the support body having a holding means for holding the cable, and housing the power feeding portion on the third support surface And a step of preparing a support body having a concave housing portion for attaching the film antenna to the support body so that the feeding portion is housed in the concave housing portion, and the first support surface, the first A winding step of winding the film antenna around the support so as to come into contact with the second support surface and the third support surface; and the holding means holding the cable; and the first support surface and the second support A wiring step of wiring so that a part of the cable extends in a direction along the surface, and filling and curing the resin material in the concave housing portion, and the power feeding portion housed in the concave housing portion and And a resin mold part forming step of forming a resin mold part that covers the end of the cable connected to the power feeding part.
 上記の製造方法によれば、上述した本発明に係るアンテナ装置を用意に製造することができる。 According to the above manufacturing method, the above-described antenna device according to the present invention can be easily manufactured.
 本発明の一態様に係るアンテナ装置の製造方法は、前記巻き付け工程に先立って、前記第3支持面の前記凹状収容部を取り囲む領域に接着層を形成する接着層形成工程を更に含み、前記巻き付け工程は、前記フィルムアンテナを前記支持体に巻き付けるときに、前記接着層を用いて、当該フィルムアンテナを前記支体に接着する接着工程を更に含むことが好ましい。 The method for manufacturing an antenna device according to an aspect of the present invention further includes an adhesive layer forming step of forming an adhesive layer in a region surrounding the concave accommodating portion of the third support surface prior to the winding step, and the winding Preferably, the step further includes an adhesion step of adhering the film antenna to the support using the adhesive layer when the film antenna is wound around the support.
 上記の製造方法によれば、上記凹状収容部の輪郭を取り囲む領域において、上記支持体と上記フィルムアンテナとが上記接着層によって接着されているため、上記凹状収容部の輪郭を取り囲む上記支持体(特に上記第3支持面)と上記フィルムアンテナとの間には、隙間が生じない。そのため、上記凹状収容部の輪郭を取り囲む領域において、上記凹状収容部に充填される上記樹脂材は、上記凹状収容部の内部に留まる。したがって、上記樹脂材が上記支持体と上記フィルムアンテナとの間に流出することを容易に防止することができる。 According to the manufacturing method, since the support and the film antenna are bonded by the adhesive layer in a region surrounding the contour of the concave housing portion, the support body surrounding the contour of the concave housing portion ( In particular, there is no gap between the third support surface) and the film antenna. Therefore, in the region surrounding the outline of the concave accommodating portion, the resin material filled in the concave accommodating portion remains inside the concave accommodating portion. Therefore, the resin material can be easily prevented from flowing out between the support and the film antenna.
 ≪付記事項≫
 本発明は上述した各実施形態に限定されるものではなく、請求項に示した範囲で種々の変更が可能であり、異なる実施形態にそれぞれ開示された技術的手段を適宜組み合わせて得られる実施形態についても本発明の技術的範囲に含まれる。
≪Additional notes≫
The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.
 1,1α,1β,1β’,1γ  アンテナ装置
 10、10α         フィルムアンテナ
 20          同軸ケーブル(ケーブル)
 30,30α,30A,30B  支持体
 31          第1支持面
 31a         L型突起
 31b         I型突起
 32          第2支持面
 32a,32b     L型ガイド
 33          第3支持面
 33a         対向領域
 33b         非対向領域
 33c         ガイドリング
 34          第1保持部(保持手段)
 34a         隔壁
 34b         凹部
 34c         隔壁
 35          第2保持部(保持手段)
 35a         突出部
 35b         凹部
 37,37A,37C  第1の凹部
 38,38A,38B  第2の凹部
 37B         L字溝部(溝部)
 37D         J字溝部(溝部)
1,1α, 1β, 1β ′, 1γ Antenna device 10, 10α Film antenna 20 Coaxial cable (cable)
30, 30α, 30A, 30B Support body 31 First support surface 31a L-type protrusion 31b I-type protrusion 32 Second support surface 32a, 32b L-type guide 33 Third support surface 33a Opposing area 33b Non-opposing area 33c Guide ring 34 First 1 holding part (holding means)
34a Partition 34b Recess 34c Partition 35 Second holding portion (holding means)
35a Protruding part 35b Concave part 37, 37A, 37C First concave part 38, 38A, 38B Second concave part 37B L-shaped groove part (groove part)
37D J-shaped groove (groove)

Claims (15)

  1.  フィルムアンテナと、前記フィルムアンテナの給電部に接続されたケーブルと、前記フィルムアンテナの少なくとも一部分が巻き付けられた支持体と、を備え、
     前記支持体は、前記ケーブルを保持するための保持手段を有している、
    ことを特徴とするアンテナ装置。
    A film antenna, a cable connected to a feeding portion of the film antenna, and a support around which at least a part of the film antenna is wound,
    The support has a holding means for holding the cable.
    An antenna device characterized by that.
  2.  前記支持体は、第1支持面と、前記第1支持面に交わる第2支持面と、前記第1支持面と対向し、前記第2支持面に交わる第3支持面とを有しており、
     前記フィルムアンテナは、前記第1支持面、前記第2支持面、及び、前記第3支持面に接触するように、前記支持体に巻き付けられており、
     前記保持手段は、前記第1支持面及び前記第2支持面に沿う方向に前記ケーブルの一部分が延在するように、前記ケーブルを保持する第1保持部を有している、
    請求項1に記載のアンテナ装置。
    The support includes a first support surface, a second support surface that intersects the first support surface, and a third support surface that faces the first support surface and intersects the second support surface. ,
    The film antenna is wound around the support so as to contact the first support surface, the second support surface, and the third support surface,
    The holding means includes a first holding portion that holds the cable such that a part of the cable extends in a direction along the first support surface and the second support surface.
    The antenna device according to claim 1.
  3.  前記第1保持部は、前記第1支持面の前記第2支持面側と反対側の端部よりも前方に突出した位置に設けられている、
    ことを特徴とする請求項2に記載のアンテナ装置。
    The first holding portion is provided at a position protruding forward from an end portion of the first support surface opposite to the second support surface side.
    The antenna device according to claim 2.
  4.  前記フィルムアンテナは、上記ケーブルのホット側導体に接続された第1アンテナ導体と、上記ケーブルのコールド側導体に接続された第2アンテナ導体とを有しており、
     前記フィルムアンテナは、前記第1アンテナ導体の主要部が前記第1及び第2支持面に沿うように、かつ、前記第2アンテナ導体の主要部が前記第3支持面に沿うように、前記支持体に巻き付けられており、
     前記第1保持部は、前記ケーブルにおいて前記第1支持面及び前記第2支持面に沿う方向に延在する部分を、当該部分から前記第1支持面までの距離が当該部分から前記第3支持面までの距離と等しくなるように保持する、
    ことを特徴とする請求項2又は3に記載のアンテナ装置。
    The film antenna has a first antenna conductor connected to the hot-side conductor of the cable and a second antenna conductor connected to the cold-side conductor of the cable,
    The film antenna is supported so that a main portion of the first antenna conductor is along the first and second support surfaces, and a main portion of the second antenna conductor is along the third support surface. Wrapped around the body,
    The first holding portion includes a portion of the cable that extends in a direction along the first support surface and the second support surface, and a distance from the portion to the first support surface is the third support from the portion. Hold to be equal to the distance to the surface,
    The antenna device according to claim 2 or 3, wherein
  5.  前記フィルムアンテナは、上記ケーブルのホット側導体に接続された第1アンテナ導体と、上記ケーブルのコールド側導体に接続された第2アンテナ導体とを有しており、
     前記フィルムアンテナは、前記第1アンテナ導体の主要部が前記第1及び第2支持面に沿うように、かつ、前記第2アンテナ導体の主要部が前記第3支持面に沿うように、前記支持体に巻き付けられており、
     前記第1保持部は、前記ケーブルにおいて前記第1支持面及び前記第2支持面に沿う方向に延在する部分を、当該部分から前記第1支持面までの距離が当該部分から前記第3支持面までの距離以上になるように保持する、
    ことを特徴とする請求項2又は3に記載のアンテナ装置。
    The film antenna has a first antenna conductor connected to the hot-side conductor of the cable and a second antenna conductor connected to the cold-side conductor of the cable,
    The film antenna is supported so that a main portion of the first antenna conductor is along the first and second support surfaces, and a main portion of the second antenna conductor is along the third support surface. Wrapped around the body,
    The first holding portion includes a portion of the cable that extends in a direction along the first support surface and the second support surface, and a distance from the portion to the first support surface is the third support from the portion. Hold it over the distance to the surface,
    The antenna device according to claim 2 or 3, wherein
  6.  前記保持手段は、前記第1支持面に沿うと共に前記第2支持面に交わる方向に前記ケーブルの一部分が延在するように、前記ケーブルを保持する第2保持部を更に有している、ことを特徴とする請求項2~5の何れか1項に記載のアンテナ装置。 The holding means further includes a second holding portion that holds the cable such that a part of the cable extends along the first support surface and in a direction intersecting the second support surface. The antenna device according to any one of claims 2 to 5, wherein:
  7.  前記第2保持部は、前記フィルムアンテナの前記第1支持面に接触した領域と前記フィルムアンテナの前記第3支持面に接触した領域とに挟まれた空間領域の外部に設けられている、
    ことを特徴とする請求項6に記載のアンテナ装置。
    The second holding portion is provided outside a space region sandwiched between a region in contact with the first support surface of the film antenna and a region in contact with the third support surface of the film antenna.
    The antenna device according to claim 6.
  8.  前記第2保持部は、前記第3支持面に形成された凹状収容部の開口方向と同じ方向に開口した凹部を有しており、前記第1保持部は、それとは反対側の方向に開口した凹部を有している、
    ことを特徴とする請求項6又は7に記載のアンテナ装置。
    The second holding portion has a recess that opens in the same direction as the opening direction of the concave housing portion formed on the third support surface, and the first holding portion opens in a direction opposite to the opening. Has a recessed portion,
    The antenna device according to claim 6 or 7, wherein
  9.  前記第1及び第2保持部で保持された前記ケーブルが、前記第1保持部と前記第2保持部との間で前記第1及び第3支持面に交わる方向に延びるように構成されている、ことを特徴とする請求項8に記載のアンテナ装置。 The cable held by the first and second holding portions is configured to extend in a direction intersecting the first and third support surfaces between the first holding portion and the second holding portion. The antenna device according to claim 8.
  10.  前記第2保持部において前記ケーブルの屈曲した部分が接触する表面は、滑らかな曲面により構成されている、
    ことを特徴とする請求項9に記載のアンテナ装置。
    The surface with which the bent portion of the cable comes into contact with the second holding portion is configured by a smooth curved surface,
    The antenna device according to claim 9.
  11.  前記フィルムアンテナは、前記支持体の前記第1、第2及び第3支持面に接触するようにU字型に折り曲げられており、
     前記支持体における、前記第3支持面の前記第2支持面側と反対側の端部には、ガイドリングが形成されており、
     前記フィルムアンテナは、前記ガイドリングを貫通し、前記ガイドリングにより支持されている、
    ことを特徴とする請求項2~10の何れか1項に記載のアンテナ装置。
    The film antenna is bent in a U shape so as to contact the first, second and third support surfaces of the support,
    A guide ring is formed at an end of the support opposite to the second support surface side of the third support surface,
    The film antenna penetrates the guide ring and is supported by the guide ring.
    The antenna device according to any one of claims 2 to 10, wherein:
  12.  前記給電部と前記ケーブルの接続部分は樹脂モールド部により覆われ、
     前記支持体は、前記樹脂モールド部を収容する凹状収容部を有している、
    ことを特徴とする請求項1に記載のアンテナ装置。
    The connecting part of the power feeding part and the cable is covered with a resin mold part,
    The support has a concave housing portion that houses the resin mold portion.
    The antenna device according to claim 1.
  13.  前記支持体は、第1支持面と、前記第1支持面に交わる第2支持面と、前記第1支持面と対向し、前記第2支持面に交わる第3支持面とを有しており、
     前記フィルムアンテナは、前記第1支持面、前記第2支持面、及び、前記第3支持面に接触するように、前記支持体に巻き付けられており、
     前記保持手段は、前記第1支持面及び前記第2支持面に沿う方向に前記ケーブルの一部分が延在するように、前記ケーブルを保持する第1保持部を有している、
    ことを特徴とする請求項12に記載のアンテナ装置。
    The support includes a first support surface, a second support surface that intersects the first support surface, and a third support surface that faces the first support surface and intersects the second support surface. ,
    The film antenna is wound around the support so as to contact the first support surface, the second support surface, and the third support surface,
    The holding means includes a first holding portion that holds the cable such that a part of the cable extends in a direction along the first support surface and the second support surface.
    The antenna device according to claim 12.
  14.  前記樹脂モールド部は、前記フィルムアンテナの表面に形成される第1被覆部と、裏面に形成される第2被覆部とから構成され、
     前記第1及び第2被覆部は、前記フィルムアンテナに形成された開口を介して連通している、
    ことを特徴とする請求項13に記載のアンテナ装置。
    The resin mold part is composed of a first covering part formed on the surface of the film antenna and a second covering part formed on the back surface,
    The first and second covering portions communicate with each other through an opening formed in the film antenna.
    The antenna device according to claim 13.
  15.  前記第3支持面の前記第2支持面との境界近傍に形成された前記凹状収容部に、前記樹脂モールド部の前記第1被覆部が収容されるように、前記フィルムアンテナが前記支持体に巻き付けられ、
     前記フィルムアンテナは、前記第3及び第2支持面の境界に沿って折り曲がる曲部が形成され、前記樹脂モールド部の第1及び第2被覆部の厚さは、前記曲部に近づくにしたがって薄くなっている、
    ことを特徴とする請求項14に記載のアンテナ装置。
    The film antenna is attached to the support so that the first covering portion of the resin mold portion is accommodated in the concave accommodation portion formed in the vicinity of the boundary between the third support surface and the second support surface. Wrapped around
    The film antenna has a bent portion that is bent along a boundary between the third and second support surfaces, and the thicknesses of the first and second covering portions of the resin mold portion approach the bent portion. Thinning,
    The antenna device according to claim 14.
PCT/JP2016/076871 2015-09-11 2016-09-12 Antenna device WO2017043663A1 (en)

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JP2018023064A (en) * 2016-08-05 2018-02-08 株式会社フジクラ Film antenna and antenna device
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