CN106654509A - Glass antenna for vehicle and rear window glass having glass antenna for vehicle - Google Patents

Abstract

The invention provides a worldwide universal glass antenna for a vehicle, and the glass antenna is capable of receiving broadband radio waves. The glass antenna is a glass antenna 1 for a vehicle which is arranged in the vicinity of the upper edge part 61u of window glass 60 for a vehicle and receives 2 frequency bands, has a power supply part 5, a first antenna conductor 10 and a second antenna conductor 20. In the glass antenna 1 for the vehicle, the first antenna conductor has a longitudinal element 11 for power supply connection, a first transverse element 12 and a second transverse element 13, the second antenna conductor 20 has a transverse element 21 for power supply connection, a longitudinal element 22 for connection, a third transverse element 23, a fourth transverse element 24, an upper longitudinal element 25 and an upper transverse element 26, the first transverse element 12 and the third transverse element 23 approach each other to form a first capacitive coupling part, the second transverse element 13 and the fourth transverse element 24 approach each other to form a second capacitive coupling part, and the upper transverse element 26 is located above the first capacitive coupling part and the second capacitive coupling part.

Description

Vehicular glass antenna and the rear portion glass pane for possessing the Vehicular glass antenna

Technical field

The present invention relates to be arranged at the Vehicular glass antenna of the glass pane of vehicle and possess the Vehicular glass antenna Rear portion glass pane.

Background technology

Vehicle boarded Vehicular glass antenna is according to different national and required conditions different (frequency band, polarized waves, altogether Deposit medium etc.), therefore coordinate each region adjusting antenna performance.In order to receive both FM broadcast and AM broadcast, Propose glass antenna (patent document 1) as shown in Figure 1.

Prior art literature

Patent document

Patent document 1：Japanese Patent Laid the 5,024,026th

The content of the invention

Invent technical problem to be solved

In above-mentioned patent document 1, it is proposed that demister is arranged at rear portion glass pane 60, behind the upside of demister 40 The frequency band that can be received corresponding to AM of the white space of portion's glass pane and the glass antenna of the frequency band both sides corresponding to FM.This shows In example, antenna element 51a and antenna element 52a Capacitance Coupleds, antenna element 51b and antenna element 52b Capacitance Coupleds.

In said structure, the sale being specifically designed for towards such as every country such as Japan, Europe and area carries out length of antenna Adjustment of degree etc. is designed, and design efforts would and qualitative control workload may be all increased anyway.

In order to reduce these workloads, constituting the antenna pattern of the glass antenna that various countries use needs to carry out generalization.

Then, the present invention is in view of the foregoing, it is therefore intended that provide can Global Access can receive wide band electric wave Vehicular glass antenna.

Solve the technical scheme that technical problem is adopted

To solve the above problems, a form of Vehicular glass antenna of the present invention is arranged at the upper of window glass for vehicle Near edge, 2 kinds of frequency bands are received, possess power supply, the 1st antenna conductor and the 2nd antenna conductor.1st antenna conductor possesses One end be connected with the power supply and from the power supply extend upward for electrical connection stave；One end and the power supply Portion or it is described for the connection of electrical connection stave and to the direction away from the power supply substantially horizontally extend it is the 1st horizontal Element；Be connected for electrical connection stave and with described the with described positioned at the top of the 1st lateral direction element, one end Upwardly extending 2nd lateral direction element in bearing of trend identical side of 1 lateral direction element.2nd antenna conductor possesses one end and institute State power supply or described for the connection of electrical connection stave and in the bearing of trend identical direction with the 1st lateral direction element Upper extension for electrical connection lateral direction element；One end is connected with the other end for electrical connection lateral direction element and prolongs upward The connection stave stretched；One end is connected and to the direction substantially water near the power supply with the connection with stave The 3rd lateral direction element that level land extends；Connected with stave with the connection positioned at the top of the 3rd lateral direction element, one end And in upwardly extending 4th lateral direction element in bearing of trend identical side with the 3rd lateral direction element；Use with the connection one end The top stave that the other end of stave or the 4th lateral direction element connect and extend upward；With one end with it is described Top stave connects and laterally first with the upwardly extending top in bearing of trend identical side of the 3rd lateral direction element Part.1st lateral direction element is close to each other with the 3rd lateral direction element and Capacitance Coupled, so as to constitute the 1st Capacitance Coupled portion, 2nd lateral direction element is close to each other with the 4th lateral direction element and Capacitance Coupled, described so as to constitute the 2nd Capacitance Coupled portion Top lateral direction element is located at the top in the 2nd Capacitance Coupled portion.

Invention effect

Using a kind of form of the present invention, then Vehicular glass antenna can Global Access use, and wide band electricity can be received Ripple.

Description of the drawings

Fig. 1 is provided with the overall top view of the rear window of conventional glass antenna.

Fig. 2 is provided with the overall top view of the rear window of the glass antenna of the 1st embodiment of the present invention.

Fig. 3 is the top view of the glass antenna of the 1st embodiment of the present invention.

Fig. 4 is the top view of the glass antenna of the 2nd embodiment of the present invention.

Fig. 5 is the top view of the glass antenna of the 3rd embodiment of the present invention.

Fig. 6 is the top view of the glass antenna of the 4th embodiment of the present invention.

Fig. 7 is the top view of the glass antenna of the 5th embodiment of the present invention.

Fig. 8 is the top view of the glass antenna of the 6th embodiment of the present invention.

Fig. 9 is the top view of the glass antenna of the 7th embodiment of the present invention.

Figure 10 is the top view of the glass antenna of the 8th embodiment of the present invention.

Figure 11 is the top view of the glass antenna of the 9th embodiment of the present invention.

Figure 12 is the top view of the glass antenna of the 10th embodiment of the present invention.

Figure 13 is the length that upper element is made in the composition for represent the Fig. 3 with upper element in the direction shown in Figure 10 During upper change, the chart of the average antenna gain of horizonally-polarized wave in the Whole frequency band of 76MHz～108MHz.

Figure 14 is the length that upper element is made in the composition for represent the Fig. 3 with upper element in the direction shown in Figure 10 During upper change, the chart of the average antenna gain of vertically polarized wave in the Whole frequency band of 76MHz～108MHz.

Figure 15 is the length that upper element is made in the composition for represent the Fig. 3 with upper element in the direction shown in Figure 11 During upper change, the chart of the average antenna gain of horizonally-polarized wave in the Whole frequency band of 76MHz～108MHz.

Figure 16 is the length that upper element is made in the composition for represent the Fig. 3 with upper element in the direction shown in Figure 11 During upper change, the chart of the average antenna gain of vertically polarized wave in the Whole frequency band of 76MHz～108MHz.

Figure 17 is in the composition of the different Figure 12 of starting point of upper element, when making the length change of upper element, 76MHz～ The chart of the average antenna gain of horizonally-polarized wave in the Whole frequency band of 108MHz.

Figure 18 is in the composition of the different Figure 12 of starting point of upper element, when making the length change of upper element, 76MHz～ The chart of the average antenna gain of vertically polarized wave in the Whole frequency band of 108MHz.

Figure 19 be Fig. 4 composition in when making the length change of lower element, level is inclined in the Whole frequency band of 76MHz～108MHz The chart of the average antenna gain of vibration wave.

Figure 20 be Fig. 4 composition in when making the length change of lower element, in the Whole frequency band of 76MHz～108MHz it is vertical partially The chart of the average antenna gain of vibration wave.

Figure 21 is in the composition for represent the Fig. 5 with upper element and lower element, when making the length change of upper element, The chart of the average antenna gain of horizonally-polarized wave in the Whole frequency band of 76MHz～108MHz.

Figure 22 is in the composition for represent the Fig. 5 with upper element and lower element, when making the length change of upper element, The chart of the average antenna gain of vertically polarized wave in the Whole frequency band of 76MHz～108MHz.

Figure 23 is to be compared, represent 76MHz～108MHz the composition with upper element shown in Fig. 3 and comparative example Each frequency band in horizonally-polarized wave antenna gain chart.

Figure 24 is to be compared, represent 76MHz～108MHz the composition with upper element shown in Fig. 3 and comparative example Each frequency band in vertically polarized wave antenna gain chart.

Figure 25 is to be compared, represent 76MHz～108MHz the composition with lower element shown in Fig. 4 and comparative example Each frequency band in horizonally-polarized wave antenna gain chart.

Figure 26 is to be compared, represent 76MHz～108MHz the composition with lower element shown in Fig. 4 and comparative example Each frequency band in vertically polarized wave antenna gain chart.

Figure 27 be by the composition with upper element and lower element shown in Fig. 5 and shown in Fig. 4 with lower element Composition be compared, represent the chart of the antenna gain of horizonally-polarized wave in each frequency band of 76MHz～108MHz.

Figure 28 be by the composition with upper element and lower element shown in Fig. 5 and shown in Fig. 4 with lower element Composition be compared, represent the chart of the antenna gain of vertically polarized wave in each frequency band of 76MHz～108MHz.

Figure 29 be will be formed with lower element and loop shown in Fig. 7 the composition of element with shown in Fig. 4 with lower section The composition of element is compared, represents the chart of the antenna gain of horizonally-polarized wave in each frequency band of 76MHz～108MHz.

Figure 30 be will be formed with lower element and loop shown in Fig. 7 the composition of element with shown in Fig. 4 with lower section The composition of element is compared, represents the chart of the antenna gain of vertically polarized wave in each frequency band of 76MHz～108MHz.

Figure 31 is to enter the composition and comparative example that form element with upper element, lower element and loop shown in Fig. 8 The chart of the antenna gain of horizonally-polarized wave in the capable each frequency band for comparing, representing 76MHz～108MHz.

Figure 32 is to enter the composition and comparative example that form element with upper element, lower element and loop shown in Fig. 8 The chart of the antenna gain of vertically polarized wave in the capable each frequency band for comparing, representing 76MHz～108MHz.

Specific embodiment

Hereinafter, with reference to the accompanying drawings of for implement the present invention preferred forms.In addition, being used to illustrate embodiment Accompanying drawing in for direction without especially recording when, according to the direction on accompanying drawing.In addition, these accompanying drawings are towards glass pane Surface observation when figure, or in the state of glass pane is installed on vehicle from in-car observation (or observing from outside car) when Figure, equivalent to horizontal direction, above-below direction is equivalent to vertical direction for the left and right directions (horizontal direction) in accompanying drawing.However, it is possible to Reference is carried out as figure when observing from outside car.

For example, when glass pane is mounted to the rear window at the rear portion of vehicle, the left and right directions in accompanying drawing is equivalent to overall width Direction.In addition, the glass pane of the present invention is mainly mounted to the rear window (rear portion glass pane) at the rear portion of vehicle.Additionally, flat The directions such as row, right angle can offset in the range of the effect for not damaging the present invention.

In addition, in the present invention, glass pane is an example of the opening portion of covering body.Glass pane is tabular component, material Material is not limited to glass, or resin, film etc..Rear portion glass pane 60 (also referred to as window glass for vehicle or rear window.) peace Loaded on the framework opening portion (also referred to as opening portion) formed by vehicle framework flange.

In addition, the car body opening edge of window is referred to as body grounding point (Japanese：Trucks Ti ア ー ス) glass pane (plate) institute The periphery of the opening portion of the car body to be embedded in, is made up of conductive materials such as such as metals.

<Window is monolithically fabricated>

Fig. 2 is that possess glass antenna (also referred to as Vehicular glass antenna, vehicle as one embodiment of the present invention With antenna) the overall top view of 1 rear portion glass pane.

Rear portion glass pane (rear window) 60 is that have flange (or the resinous face for being arranged on the car body for being formed at outside Plate) outer peripheral edge 61 glass pane.The car body opening edge (flange) of car body is wanted as the rear portion glass pane of body grounding point The periphery of the opening portion of embedded car body.Flange is made up of conductive materials such as metals.

In embodiments of the present invention, the outer peripheral edge of rear portion glass pane 60 and the inner peripheral (opening edge) of car body side flange set Equal position is placed in, is represented with symbol 61.But, also can be again near the flange of car body side and the outer peripheral edge of rear portion glass pane 60 It is folded.

In Fig. 2, glass antenna (by the antenna for being integrated into glass pane such as printing, being embedded in, attach) is by being included in car With rear portion glass pane 60 on the power supply that arranges as planar conductor pattern and antenna conductor 10,20 constituting.

It is provided with rear portion glass pane 60 using the 1st embodiment～the 10th embodiment with many Hes of heater wire 42 To many busbar 41a of the power supply of heater wire 42, the demister 40 of the electrified regulation formula of 41b.

Specifically, in the example of the demister 40 shown in Fig. 2, the left field and right side area of glass pane 60 at rear portion (left and right both ends side) is respectively provided with least the busbar 41a of a banding, 41b.In addition, busbar 41a, 41b are in rear portion window Elongation (extend, extend) on the longitudinal direction or generally longitudinal direction of glass 60.

Used as an example, busbar 41a is connected with body grounding point, and busbar 41b is by switch 31 and dc source 30 anode connection.

It is many heater wires 42 in the horizontal direction or in general horizontal direction, in a broad aspect in a lateral direction or substantially horizontal Upwardly extend to side.As an example, in common automobile, from the angle for guaranteeing the visual field, the horizontal stroke of preferred demister 40 It is 900mm～1200mm to width, the interval (Dw) i.e. between busbar 41a and 41b.

In the present invention, the shape of demister is not limited.That is, busbar is not limited to 2.It is however not limited to this, busbar It can also be 2 or more than 3.Busbar can not extend on the longitudinal direction of rear portion glass pane 60 or generally longitudinal direction, Also can extend on such as horizontal direction or generally lateral direction.

Herein, the busbar 41a of many heater wires 42, the part beyond 41 also can be shorted by short-circuit line 43,44.Tool For body, in the example shown in Fig. 2, short-circuit line is provided with the 1st short-circuit line 43 and the 2nd short-circuit line 44 this two short-circuit lines, Extend on the longitudinal direction or generally longitudinal direction of rear portion glass pane 60 respectively.

1st short-circuit line 43 is configured at the left side of the left and right medial border of rear portion glass pane 60, after the 2nd short-circuit line 44 is configured at The right side of the left and right medial border of portion's glass pane 60.Further, the 1st short-circuit line 43 and the 2nd short-circuit line 44 are separately positioned on from this Left and right medium line is to the left or to the right in the region of 40mm～300mm.

As shown in Fig. 2 the rear portion glass pane 60 of the white space as rear portion glass pane 60 positioned at the upside of demister 40 Rising wood around be provided with the present invention glass antenna.Herein, in order to improve the antenna gain at frequency band H and L, demister 40 Glass antenna 1 between most short interval, i.e. positioned at topmost heater wire 42u with described later for electrically connecting lateral direction element 21 The distance between be preferably 20mm～100mm.In addition, the distance of demister 40 and glass antenna 1 also can be in more than 30mm.

The glass antenna of the present invention frequency acceptance band L and higher than frequency band L both frequency bands of frequency band H well.As frequency Band L (low-frequency band), for example, can enumerate AM broadcast bands (530kHz～1605kHz), as frequency band H (high frequency band), for example can example Lift the FM broadcast bands (76MHz～95MHz) of Japan and the FM broadcast 88MHz～108MHz in Europe.In the present invention, will be with Japan FM broadcast bands (76MHz～95MHz) and Europe the FM broadcast corresponding wide band FM of both 88MHz～108MHz it is wide Broadcast frequency band (76MHz～108MHz) and be designated as frequency band H.

Have to frequency in 1st embodiment～the 6th embodiment and the 8th embodiment～the 10th embodiment of the present invention With the power supply (supply terminals) 5 that L and frequency band H power.In 7th embodiment, the 1st power supply with frequency band H respectively 6 and frequency band H with the 2nd power supply 7 with frequency band L.

In addition, in the explanation after, in order to word is simplified, antenna element is referred to as into element.In addition, by vehicle Glass antenna is referred to as with glass antenna.

The embodiment ＞ of ＜ the 1st

Fig. 3 is the top view of the glass antenna 1 of the 1st embodiment of the present invention.

Glass antenna 1 possesses the 1st antenna conductor 10, the 2nd antenna conductor and power supply 5.The antenna conductor of power supply 5 and the 1st 10 and the 2nd antenna conductor 20 connects.

1st antenna conductor 10 possesses for electrical connection stave 11, the 1st lateral direction element 12 and the 2nd lateral direction element 13.The The overall antenna conductor as frequency band H of 1 antenna conductor 10 works, for electrical connection stave 11, the 1st lateral direction element 12 Work with antenna element of the 2nd lateral direction element 13 as H.

2nd antenna conductor 20 possess for electrical connection lateral direction element 21, connection stave 22, the 3rd lateral direction element 23, 4th lateral direction element 24, top stave 25, top lateral direction element 26 and adjustment element 29.2nd antenna conductor 20 is used as L Both antenna conductors of antenna conductor and H work.

Specifically, for electrical connection lateral direction element 21, the 3rd lateral direction element 23 and the 4th lateral direction element 24 as L's Antenna element works.Top lateral direction element 26 works as the antenna element of H.Adjustment element 29 is used as adjusting The elements act of the antenna element of H.Connection stave 22 and top stave 25 are used as adjusting directive property Elements act.

It is in longitudinal direction or approximately longitudinally square from power supply 5 for electrical connection stave 11 in 1st antenna conductor 10 To, extend particularly in vertical direction or generally vertical direction.

It is connected with the 1st lateral direction element 12 and the 2nd lateral direction element 13 for electrical connection stave 11.In present embodiment, One end positioned at the 2nd lateral direction element 13 of the top of the 1st lateral direction element 12 is connected with the terminal for electrical connection stave 11. But, not limited to this are constituted, in a generally perpendicular direction, also can be laterally first from the 2nd for the upper end of electrical connection stave 11 One end of part 13 projects.

With the 1st lateral direction element 12 and the 2nd lateral direction element 13 being connected for electrical connection stave 11 to away from power supply The direction of portion side extends.In addition, not limited to this are constituted, in the horizontal direction, the 1st lateral direction element 12 and the 2nd lateral direction element 13 End is also comparable more to be projected for electrical connection stave 11.

In 2nd antenna conductor 20, for electrical connection lateral direction element 21 from power supply 5 in horizontal direction or substantial transverse side To, particularly extend in the horizontal direction or in general horizontal direction.For electrical connection lateral direction element 21 as L antenna element Work, by this antenna gain for being configured to improve frequency band H.

In addition, in the example shown in Fig. 2, when observing from the observation of in-car side or from car outside, the blank of rear portion glass pane 60 The left field in region is provided with a power supply 5, power supply 5 be directly connected to for electrically connecting lateral direction element 21.But, even Relation not limited to this are connect, such as shown in the enlarged drawing of Fig. 3 (top view), for electrical connection lateral direction element 21 the 1st antenna can be also passed through Conductor 10 is connected for electrical connection stave 11 (connecting portion 19) with power supply 5.That is, for electrical connection lateral direction element 21 Directly or indirectly electrically connect with power supply 5.

Connected with stave 22 with being connected for the terminal (right side of Fig. 3) of electrical connection lateral direction element 21.Connection is used vertical It is the element for adjusting directive property to element 22, impact is produced to the directive property of frequency band H by the change of its position.

In addition, in the composition shown in Fig. 3, longitudinal direction unit is used with being connected for the end (other end) of electrical connection lateral direction element 21 Part 22 connects.But, connect not limited to this, connected with stave 22 with being connected for the optional position of electrical connection lateral direction element 21 Connect.

Similarly, the end (lower end) of connection stave 22 is connected with adjustment element 29.It is however not limited to this, Connection is connected with the arbitrary portion of stave 22 with adjustment element 29.

In present embodiment, the connection lateral direction element 23 of stave 22 and the 3rd, the 4th element 24, top stave 25th, adjustment element 29 connects.

Be connected with stave 22 connect the 3rd lateral direction element 23, the 4th element 24 and with top stave 25 The top lateral direction element 26 of connection is approximate horizontal and upwardly extend near the side of power supply 5 from connection stave 22.

3rd lateral direction element 23 of the 1st lateral direction element 12 of the 1st antenna conductor 10 and the 2nd antenna conductor 20 it is close to each other and Capacitance Coupled.4th lateral direction element 24 of the 2nd lateral direction element 13 of the 1st antenna conductor 10 and the 2nd antenna conductor 20 it is close to each other and Capacitance Coupled.

Like this, by arranging two Capacitance Coupled portions, compared with the situation in a Capacitance Coupled portion is set, frequency acceptance band H When antenna gain significantly improve.

In addition, in the 2nd antenna conductor 20 of present embodiment, by horizontal above the setting of the top of the 4th lateral direction element 24 To element 26, in addition to possessing and to form capacity coupled element, other lines elements are also equipped with.Top lateral direction element 26 is used for Improve the frequency band that the gain and extension of high frequency band H can be received.

Top stave 25 is connected with being connected with stave 22 in Fig. 2, so as to integrated and extended.Like this, Top stave 25 connects with the upper end being connected with stave 22 in this composition, but the composition of upper element is not limited to This.

For example, it is also possible to be following situation：Top stave 25 is not connected with being connected with stave 22, top longitudinal direction Element 25 is connected with the arbitrary portion of the 4th lateral direction element 24 and extends upward.In this case, connect with top stave 25 The top lateral direction element 26 for connecing is to rise from the position different in the horizontal direction of the position of connection stave 22 as Point, extends in a same direction in the way of towards the side of power supply 5 with the 4th lateral direction element 24.

In 1st Capacitance Coupled portion, the 3rd lateral direction element 23 and the 1st lateral direction element 12 are in the horizontal direction or approximate horizontal side Upwards, the broadly extension on horizontal direction or generally lateral direction, the 3rd lateral direction element 23 and the 1st lateral direction element 12 are mutually put down It is capable or almost parallel.In present embodiment, the 1st lateral direction element 12 is configured at the upside of the 3rd lateral direction element 23.

Similarly, in the 2nd Capacitance Coupled portion, the 4th lateral direction element 24 and the 2nd lateral direction element 12 are in the horizontal direction or substantially Extend in horizontal direction, be parallel to each other or almost parallel.In present embodiment, the 4th lateral direction element 24 is configured at the 2nd lateral direction element 13 upside.

As described above, in present embodiment, top lateral direction element 26 is additionally provided with the 2nd Capacitance Coupled portion.Then, pass through Configure Capacitance Coupled portion in the manner described above, lines element with alternately and mutually different mode from the side of power supply 5 upward The side of lateral direction element 26 configures, and antenna gain is improved.

Now, capacity coupled 3rd lateral direction element 23, the 1st lateral direction element 12, the 2nd lateral direction element 13 and the 4th are formed horizontal The respective end not being attached of element 24 is open end.

Herein, as frequency band H, for the FM broadcast band European with the FM broadcast bands of Japan, the U.S. and TV VHF Include in the low-frequency band of band whole frequency bands (76MHz～108MHz) correspondence, positioned at downside the 1st Capacitance Coupled portion length compared with It is well 200mm～800mm, particularly preferably 300mm～732mm.In addition, the length positioned at the 2nd Capacitance Coupled portion of upside is preferable It is 230mm～430mm, particularly preferably 264mm～344mm.

In addition, in the 1st Capacitance Coupled portion and the 2nd Capacitance Coupled portion, the interval formed between capacity coupled element is preferable It is 5mm～30mm, particularly preferably 10mm～20mm.

In example shown in Fig. 2～Fig. 7 and Figure 10～Figure 12 of embodiments of the present invention, from in-car side or car outside During observation, the left side of connection stave 22 be configured with the 1st Capacitance Coupled portion, the 2nd Capacitance Coupled portion, for electrical connection laterally Element 21 and top lateral direction element 26.

So as to, will be used to adjust the connection of directive property with stave 22 as border, adjustment element 29 is configured at 1st Capacitance Coupled portion and the opposition side in the 2nd Capacitance Coupled portion.Like this, by the way that Capacitance Coupled and adjustment element 29 are separately matched somebody with somebody Put, the length and the length for electrical connection lateral direction element 21 that two Capacitance Coupled portions can be guaranteed with necessary degree, and The length of top lateral direction element 26.By assuring that the length of the lateral direction element 21,23,24,26 for substantially horizontally extending, can be true Protect the antenna gain of frequency band L and improve the antenna gain of frequency band H.

Herein, aerial wavelength under the centre frequency of frequency band H is designated as into λ, glass wavelength cripetura rate and is designated as k, k= 0.64, λ g=λ k.

Specifically, with regard to the connection position of stave 22, it is configured at from the left and right central authorities of rear portion glass pane 60 The scope of below 0.13 λ g then frequency acceptance band H when non-directive, therefore preferably.Scope more more preferable than the position is from rear portion window glass Play the scope of below 0.04 λ g～0.1 λ g in the left and right central authorities of glass 60.

Herein, in the 2nd antenna conductor 20, the connection of directive property adjustment stave 22 is in the vertical of rear portion glass pane 60 Extend on direction or generally longitudinal direction.But not limited to this, if connection stave 22 and top stave 25 Total conductor length (total length) at least more than 50% rear portion glass pane 60 longitudinal direction or generally longitudinal direction Upper extension, then can use as the antenna element for pointing to adjustment.

Connection is preferred with the conductor length of the part extended on longitudinal direction or generally longitudinal direction of stave 22 For (λ g/53)～600mm.When the conductor length of this part is more than (λ g/53), compared with the situation less than (λ g/53), frequency band The antenna gain of H is improved, therefore preferably.

Specifically, in order to correspond to the present invention frequency band H frequency band (76MHz～108MHz), connection stave 22 and top stave 25 the conductor length of part that extends on longitudinal direction or generally longitudinal direction of total length compared with It is well 40mm～600mm.The preferred scope of the conductor length of this part is 50mm～500mm, and particularly preferred scope is 60mm～400mm.

In addition, the connection total length of stave 22 and top stave 25 is in below 600mm, and exceed The situation of 600mm is compared, and can realize densification, therefore preferably.The preferred scope of the conductor length of this part is (λ g/ 41.7)～500mm, particularly preferred scope is (λ g/34.8)～400mm.

Interval in the present invention, between the group in the 1st Capacitance Coupled portion and the group in the 2nd Capacitance Coupled portion, i.e. the 1st is laterally first Equispaced between the lateral direction element 24 of part 12 and the 4th is preferably 10mm～30mm, particularly preferably 15mm～20mm.

Specifically, the equispaced is in more than 10mm, and compared with the situation less than 10mm, antenna gain is carried Height, therefore preferably.The equispaced is close to non-directive therefore excellent compared with the situation more than 30mm in below 30mm Choosing.

When arranging upper element (25+26) with the length for specifying, with the effect for improving antenna gain.Accordingly, it is considered to arrive Following paths (total length), with suitable conductor length upper element is respectively provided with.

For example, not include power supply length in the case of, from power supply sequentially pass through connecting portion 19, for electrically connect Lateral direction element 21, connection stave 22, top stave 25, path to the front end of top lateral direction element 26 Path, when n is integer, the scope of preferably (0.15+0.5n) λ g～(0.45+0.5n) λ g.Details and enforcement Example is illustrated after.

In addition, the front end of top lateral direction element 26 is not limited to the composition of open end, can also be curved or turn back.For example, As shown in fig. 6, the front end of top lateral direction element 26 also can be turned back, i.e. top lateral direction element 26 with the 3rd lateral direction element 23 After bearing of trend identical side upwardly extends, stave 261 and top lateral direction element 262 of turning back is bent by top and is rolled over Return, upwardly extending with the bearing of trend identical side of the 1st lateral direction element 12.

In this case, preferably setting amounts to length, so that said elements (connecting portion) 's Path is above-mentioned along with top bends the turn back length (leement duration) of lateral direction element 262 of stave 261 and top (0.15+0.5n) scope of λ g～(0.45+0.5n) λ g.

The embodiment ＞ of ＜ the 2nd

Fig. 4 is the top view of the glass antenna 1A of the 2nd embodiment of the present invention.

There is following difference compared with the 1st embodiment shown in Fig. 3 in present embodiment：2nd antenna conductor 20A does not set Upper element 25,26 is put, but lower element 27,28 is alternatively set.

Specifically, in present embodiment, the stave 27 below the downside for electrical connection lateral direction element 21 is arranged With lower section transverse elements 28 as lower element.

Herein, when observing from in-car side or car outside, using the left and right central authorities of rear portion glass pane 60 as border, on right side Region is provided with lower section stave 27.Lower section stave 27 extends on longitudinal direction or generally longitudinal direction.Lower section is vertical End to element (the 1st lower section stave) 27 is connected with lower section lateral direction element 28.

In addition, in Fig. 4, although using the lower section lateral direction element 28 for being configured at the lower section for electrical connection lateral direction element 21 as The example of a piece element of configuration is illustrated, but the size of the blank parts according to glass pane, also will can be configured with many The situation of square lateral direction element is used as modified embodiment of the present embodiment.

In this case, for raising antenna gain, Duo Gepai in the frequency band (76MHz～108MHz) of above-mentioned frequency band H The lower element of row at intervals of 5mm～25mm when, particularly 10mm～20mm time-frequency bands H antenna gain can improve, because This is preferred.

Further, as shown in figure 5, as the inscape of lower element, can also be provided for and horizontal for electrical connection Element 21 connects to make the 2nd lower section stave 281 in loop.Specifically, one end and lower section lateral direction element 28 are provided with Other end connection, the other end and the 2nd lower section stave 281 being connected for electrical connection lateral direction element 21.In this composition, by Lower section is formed for electrical connection lateral direction element 21, lower section stave 27, lower section lateral direction element 28 and lower section stave 281 Loop.By forming lower side hydraulic circuit, the antenna gain of frequency band H is improved.

When arranging lower element (27+28) with the length for specifying, with the effect for improving antenna gain.Accordingly, it is considered to arrive Following paths, with suitable conductor length lower element is respectively provided with.

For example, not include power supply length in the case of, from power supply sequentially pass through connecting portion 19, for electrically connect Lateral direction element 21, lower section stave 27, the path in path to the front end of lower section lateral direction element 28 are preferably The scope of 0.57 λ g～0.62 λ g.Details is illustrated with embodiment after.

In addition, the front end of lower section lateral direction element 28 is not limited to the composition of open end, loop as above is being formed with In the case of, preferably set to amounting to length, so that said elementsLength till 28 adds the 2nd The length (leement duration) of lower section stave 281 is in the range of above-mentioned 0.57 λ g～0.62 λ g.

Or, as shown in Fig. 4 or Fig. 7, front end also can be turned back, i.e. lower section lateral direction element 28 with the 3rd lateral direction element 23 Bearing of trend identical side upwardly extend after, bending stave 281 and lower section lateral direction element 282 of turning back by lower section is carried out Turn back, upwardly extending with the bearing of trend identical side of the 1st lateral direction element 12.

In this case, preferably set to amounting to length, so that said elementsTill Path plus the lower section bending stave 281 as bending element and lower section turn back lateral direction element 282 length for upper State the scope of 0.57 λ g～0.62 λ g.

The embodiment ＞ of ＜ the 3rd

Fig. 5 is the top view of the glass antenna 1B of the 3rd embodiment of the present invention.

Present embodiment is compared with the 1st embodiment shown in Fig. 3 with the 2nd embodiment shown in Fig. 4, there is following difference It is different：2nd antenna conductor 20B is provided with both upper element 25,26 and lower element 27,28.

Present embodiment can enjoy following two kinds of advantages：Being obtained by arranging upper element 25,26 in the 1st embodiment Advantage and the 2nd embodiment in by arrange lower element 27,28 obtained by advantage.

In addition, it is illustrated in embodiment as be described hereinafter, respectively upper element and lower element are set to into suitable conductor Length, with influencing each other improving periodically variable antenna increasing by upper element (25+26) and lower element (27+28) Benefit.

For example, when lower element (27+28) being fixed as into 440mm, in the case where the length of power supply is not included, from confession Electric portion sequentially pass through connecting portion 19, for electrical connection lateral direction element 21, connection stave 22, top stave 25, arrive The path in the path till the front end of top lateral direction element 26, when n is integer, preferably (0.15+0.5n) λ g～ (0.45+0.5n) scope of λ g.Details is illustrated with embodiment after.

In addition, in present embodiment, the front end of top lateral direction element 26 is not limited to the composition of open end, also can be turned back. For example, as shown in fig. 6, in the case where front end is turned back, preferably setting to amounting to length, so that lower element (27+ 28) 440mm, said elements are fixed asPath bend stave 261 and upper plus top Side turn back lateral direction element 262 length for (0.15+0.5n) the λ g～(0.45+0.5n) λ g scope.

The embodiment ＞ of ＜ the 4th

Fig. 6 is the top view of the glass antenna 1C of the 4th embodiment of the present invention.

There is following difference compared with the 1st embodiment shown in Fig. 3 in present embodiment：It is additionally provided with and is led with the 1st antenna The loop of body 10C and the 2nd antenna conductor 20C connections (short circuit) forms element 8,9.

That is, as shown in fig. 6, there is the glass antenna 1C of present embodiment upper element 25,26 and loop to form element 8, 9。

In addition, two loops are configured with Fig. 6 forms element 8,9.But, can not have makes for electrical connection lateral direction element 21 and the 1st loop of the short circuit of the 1st lateral direction element 23 formed and element 8 and make the 1st lateral direction element 23 and the 2nd lateral direction element 24 short-circuit The 2nd loop formed both elements 9, also can have both at least one.

Herein, loop forms element 8,9 and extends substantially vertically, therefore the leement duration of loop formation element 8,9 is suitable In the interval for the lateral direction element 12 of electrical connection lateral direction element 21 and the 1st and the 1st lateral direction element 12 that substantially horizontally extend With the interval of the 2nd lateral direction element 13.

Therefore, in order to improve the directive property of frequency band H (76MHz～108MHz) as above, loop forms element 8,9 Leement duration is preferably 5mm～60mm, particularly preferably 10mm～40mm.

The embodiment ＞ of ＜ the 5th

Fig. 7 is the top view of the glass antenna 1D of the 5th embodiment of the present invention.

There is following difference compared with the 2nd embodiment shown in Fig. 4 in present embodiment：It is additionally provided with and is led with the 1st antenna The loop of body 10D and the 2nd antenna conductor 20D connections (short circuit) forms element 8,9.Loop forms the composition of element 8,9 and Fig. 6 institutes The 4th embodiment for showing is identical.

That is, as shown in fig. 7, there is the glass antenna 1D of present embodiment lower element 27,28 and loop to form element 8, 9。

The embodiment ＞ of ＜ the 6th

Fig. 8 is the top view of the glass antenna 1E of the 6th embodiment of the present invention.

There is following difference compared with the 3rd embodiment shown in Fig. 5 in present embodiment：It is additionally provided with and is led with the 1st antenna The loop of body 10E and the 2nd antenna conductor 20E connections (short circuit) forms element 8,9.Loop forms the composition of element 8,9 and Fig. 6 institutes The 4th embodiment for showing is identical.

That is, as shown in figure 8, the glass antenna 1E of present embodiment there is upper element 25,26, lower element 27,28 with And loop forms element 8,9.

The embodiment ＞ of ＜ the 7th

Fig. 9 is the top view of the glass antenna 1F of the 7th embodiment of the present invention.

Present embodiment is primarily present following difference compared with the 1st embodiment shown in Fig. 2, Fig. 3：Power supply is divided into 1st power supply 6 of the frequency band H higher than frequency band L, and the 2nd power supply 7 for being mainly used in frequency band L.

Specifically, in present embodiment, the 1st antenna conductor 10F's powers for electrical connection stave 11F and the 1st Portion 6 connects.In addition, the 2nd antenna conductor 20F for electrical connection lateral direction element 21F not with for electrically connect stave 11F connect Connect, but be directly connected to the 2nd power supply 7.

Most short interval D 67 between 1st power supply 6 and the 2nd power supply 7 is preferably 0.1mm～200mm.The most short interval In more than 0.1mm, it is more easily manufactured compared with the situation less than 0.1mm, therefore preferably.If the most short interval is in 200mm Hereinafter, then the more convenient installation compared with the situation more than 200mm, therefore preferably.The preferred scope at the most short interval is 1mm ～100mm, particularly preferred scope is 2mm～50mm.

In addition, in the example shown in Fig. 9, being directly connected to the 2nd power supply 7 for electrical connection lateral direction element 21F.But, Not limited to this, also (for example, can not connect with the 1st antenna conductor 10 for electrical connection lateral direction element 21F by arbitrary connecting element Tactile element) it is connected with the 2nd power supply 7.That is, electrically connect with the 2nd power supply 7 for electrical connection lateral direction element 21F.

In addition, in the 1st～the 6th embodiment, end (lower end) and the adjustment element 29 of connection stave 22 connect Connect, but in the present embodiment shown in Fig. 9, the connection part beyond the end of stave 22F and adjustment element 29F Connection.

In addition, in the 7th embodiment, when arranging upper element (25+26) with the length for specifying, with raising antenna gain Effect.Accordingly, it is considered to arrive following paths, upper element is respectively provided with suitable conductor length.

For example, not include power supply length in the case of, from power supply sequentially pass through connecting portion 19, for electrically connect Lateral direction element 21F, connection stave 22F, top stave 25, the path to the front end of top lateral direction element 26 Path, n be integer when, the scope of preferably (0.15+0.5n) λ g～(0.45+0.5n) λ g.

In addition, when up the front end formation of lateral direction element 26 is turned back, preferably in a same manner as in the first embodiment to amounting to length Degree set so that including return portion total length within the above range.

The embodiment ＞ of ＜ the 8th

Figure 10 is the top view of the glass antenna 1G of the 8th embodiment of the present invention.Present embodiment and Fig. 2 and Fig. 3 institutes The 1st embodiment for showing is compared has following difference：Top lateral direction element 26G front end Bu Shi open ends, but turned back to Lower section.

As shown in Figure 10, the front end of top lateral direction element 26G is turned back to lower section, i.e. top lateral direction element 26G is with After the bearing of trend identical side of 3 lateral direction elements 23 upwardly extends, turn back under stave 261 and top by being bent under top Lateral direction element 262 is turned back downwards, is being upwardly extended with the bearing of trend identical side of the 1st lateral direction element 12.

In this case, preferably set to amounting to length, so that said elements (connecting portion) Path for above-mentioned (0.15+0.5n) λ g～(0.45+0.5n) λ g scope.

In addition, in order to improve antenna gain in the frequency band (76MHz～108MHz) of above-mentioned frequency band H, rolling over as under top When the length that element 261 is bent under the top at the interval for returning lateral direction element 262 and top lateral direction element 26G is 5mm～25mm, spy When being not 10mm～20mm, the antenna gain of frequency band H can be improved, therefore preferably.

Similarly, the 2nd lateral direction element 13 of top lateral direction element 26G and the 1st antenna conductor 10 at intervals of 5mm～25mm When, particularly 10mm～20mm when, the antenna gain of frequency band H can be improved, therefore preferably.

In addition, in Figure 10, top lateral direction element 26G is extending to power supply 5 and for the upper of electrical connection stave 11 Orientation is postponed, and is extended downwards by bending stave 261 under top, also can the (Japanese in short distance as shown in Figure 6：Hand Front In) bending.In addition, can also be not provided with lateral direction element 262 of turning back under top.

The embodiment ＞ of ＜ the 9th

Figure 11 is the top view of the glass antenna 1H of the 9th embodiment of the present invention.Present embodiment and Fig. 2 and Fig. 3 institutes The 1st embodiment for showing is compared has following difference：Top lateral direction element 26H front end Bu Shi open ends, but turned back to Top.

As shown in figure 11, the front end of top lateral direction element 26H is turned back upward, i.e. top lateral direction element 26H is with the 3rd After the bearing of trend identical side of lateral direction element 23 upwardly extends, turn back on stave 263 and top by being bent on top Lateral direction element 264 is turned back upward, is being upwardly extended with the bearing of trend identical side of the 1st lateral direction element 12.

In this case, preferably set to amounting to length, so that said elements (connecting portion) Path for above-mentioned (0.15+0.5n) λ g～(0.45+0.5n) λ g scope.

In addition, in order to improve antenna gain in the frequency band (76MHz～108MHz) of above-mentioned frequency band H, it is horizontal as top Turn back on element 26H and top lateral direction element 264 interval top on bend the length of element 263 when being 5mm～25mm, spy When being not 10mm～20mm, the antenna gain of frequency band H can be improved, therefore preferably.

Similarly, turn back on top the antenna conductor 10 of lateral direction element 264 and the 1st the 2nd lateral direction element 13 at intervals of 5mm During～25mm, particularly 10mm～20mm when, the antenna gain of frequency band H can be improved, therefore preferably.

In addition, in Figure 11, top lateral direction element 26H is extending to power supply 5 and for the upper of electrical connection stave 11 Orientation is postponed, by top bend stave 263 extend upward, also can in short distance (Japanese：In before hand) bending. In addition, can also be not provided with lateral direction element 264 of turning back on top.

The embodiment ＞ of ＜ the 10th

Figure 12 is the top view of the glass antenna 1I of the 10th embodiment of the present invention.Shown in present embodiment and Figure 10 8th embodiment is compared, and there is following difference：The lower end of top stave 25I not be connected another with stave 22 End connection, but be connected with the 4th lateral direction element 24.

As shown in figure 12, stave 25I in top is connected with the 4th lateral direction element 24 and upward extension, top are laterally first One end of part 26I is connected with the upper end of the top stave 25I for constituting like this, positioned at the midway top of the 4th lateral direction element 24. Then, lateral direction element 26I in top prolongs from the position on the bearing of trend identical direction with the 3rd lateral direction element 23 After stretching, by turning back under bending stave 265 under top and top, lateral direction element 266 is turned back downwards, laterally first with the 1st The bearing of trend identical side of part 12 upwardly extends.

In this case, playing the most long path of the power supply from antenna element is also included from connection stave Length in the 4th lateral direction element 24 of 22 upper end to the lower end of top stave 25I (apart from D25).Now, preferably It is to set to amounting to length, so that said elements (connecting portion) Path for above-mentioned (0.15+0.5n) λ g～(0.45+0.5n) λ g scope.

In addition, in order to improve antenna gain in the frequency band (76MHz～108MHz) of above-mentioned frequency band H, rolling over as on top When the length that element 265 is bent on the top at the interval for returning lateral direction element 266 and top lateral direction element 26I is 5mm～25mm, spy When being not 10mm～20mm, the antenna gain of frequency band H can be improved, therefore preferably.

Similarly, the 2nd lateral direction element 13 of top lateral direction element 26I and the 1st antenna conductor 10 at intervals of 5mm～25mm When, particularly 10mm～20mm when, the antenna gain of frequency band H can be improved, therefore preferably.

In addition, in Figure 12, top lateral direction element 26I is extending to power supply 5 and for the upper of electrical connection stave 11 Orientation is postponed, and is extended downwards by bending stave 265 on top, also can the (Japanese in short distance as shown in Figure 6：Hand Front In) bending.In addition, can also be not provided with lateral direction element 266 of turning back on top.

In addition, starting points (lower end) of the top stave 25I from the upper end of connection stave 22 is different, top Scope that the starting point of stave 25I can be moved (leave apart from D25) is top stave 25I and the 2nd lateral direction element 13 discontiguous scopes, top stave 25I is particularly preferably arranged far from more than the end 5mm of the 2nd lateral direction element 13 Position.

<Overall variation>

1st antenna conductor 10, the 2nd antenna conductor 20, power supply 5, the 1st power supply 6, the 2nd power supply 7 and demister 40 lead to Usually through the in-car side surface that the thickener containing conductive metal such as silver paste material is printed on rear portion glass pane 60 and it is sintered And formed.But, the forming method being not limited to, the thread like body comprising conductive materials such as copper or foil-like body can be formed in The in-car side surface or car outer surface of rear portion glass pane 60, may also be arranged on the inside of itself of rear portion glass pane 60.In addition, The synthetic resin film that internal or surface is provided with conductor layer can be formed in the in-car side surface or car outside of rear portion glass pane 60 Surface, as the 1st antenna conductor 10 and the 2nd antenna conductor 20 etc..

In the present invention, also shielding film can be formed on the surface of rear portion glass pane 60, can be arranged on the shielding film selected from L With at least one in antenna conductor, power supply 5, the 1st power supply 6 and the 2nd power supply 7.The shielding film can enumerate black ceramic The ceramics such as film.

Herein, because vehicle is moving body, multiple antennas are preferably provided with, possessing can switch to reception according to position The electric wave selective power (cooperateing with operating to carry out diversity reception) of either one good antenna of sensitivity.

Therefore, the auxiliary antenna of equal frequency acceptance band L and frequency band H also can be provided in the present invention in glass pane 60.According to This, by arranging auxiliary antenna in glass pane 60, can obtain the switching by antenna to improve the effect of receptivity.In addition, Glass antenna can also cooperate with operating to carry out diversity reception with auxiliary antenna.Auxiliary antenna also can be in frequency acceptance band L and frequency band H It is at least one.

In addition, also can set in the glass antenna of the present invention and other positions (such as front screen, shark fins, spoiler) Auxiliary antenna is put, mutually switching is allowed it to.

In addition, also can be provided for receiving different frequency, for example receive the broadcast (DAB higher than frequency band H in rear window Deng) other purposes different antennas.In this case, when different types of antenna being set on the glass pane of rear portion, preferably It is arranged at the top of adjustment element 29, away from the side of power supply 5 (is right in Fig. 2 i.e. relative to connection stave 22 Side).

In the case where different types of antenna is provided with, the glass antenna of the present invention can be used in adjusting HFBC high frequency broadcasting (DAB) reception characteristic.

Glass antenna and glass pane are illustrated above by multiple embodiment examples, but be the invention is not restricted to Above-mentioned embodiment example.The various modifications such as some or all of combination of other embodiment and replacement and improvement are at this It is possible in bright scope.

<Embodiment>

[embodiment 1]

Using the rear portion glass pane 60 of automobile, in having made the 1st embodiment of Fig. 3 and the 8th embodiment of Figure 10 The different automotive glass antenna of the length (L25+L26 (+L261+L262)) of upper element 25,26.Herein, determine not on the same day Frequency-antenna gain characteristics under line length, have calculated average characteristics.In addition, this enforcement different from the 5th embodiment described later Lower element is not provided with example.

From observer car, in the electric field of in the horizontal direction 0～360 ° of 60dB μ V/m antenna gain is carried out every 3 ° Determine.Although there are 11 heater wires 42 in the overall pattern of Fig. 2, there are 14 heater wires 42 when determining.

In the present embodiment, 0～360 ° of the average antenna gain is employed.In the present embodiment, these condition determinations are in figure It is also identical in 13～Figure 32.

The size of each several part of the glass antenna 1 of the 1st embodiment (and the 8th embodiment) shown in Fig. 3 (Figure 10) It is as described below.L represents the conductor length of each element.

In addition, the distance between the 1st Capacitance Coupled and the 2nd capacity coupled opposite element are formed for 10mm, rear portion The angle at the angle of a less side is 24.4 ° in the angle that glass pane 60 is formed with horizontal direction.

In addition, the size of power supply is 0.8mm for the live width of vertical 27mm × horizontal 14mm, each element.

Further, the configuration of the glass antenna 1 of rear portion glass pane 60 (with reference to Fig. 2, Fig. 4) as described below.D1 is that car body is opened With for electrically connecting the distance between stave 11, D2 is that car body is opened to the lateral margin 61s of peristoma (edge of rear portion glass pane) 61 The distance between upper limb 61u and the 2nd lateral direction element 13 of peristoma 61, D4 represents horizontal with lower section positioned at the heater wire 42u of topmost To the distance between element 28.Ww is the transverse width of rear portion glass pane 60, and Wh is the longitudinally wide of rear portion glass pane 60.

In the present embodiment, make the length (L25+L26 (+L261+L262)) of the upper element of glass antenna according to 0 (nothing), 145th, 245,345,445,545,645,745,845,945,1045,1145,1245,1345,1445,1545 this 16 kinds of situations are entered Row change.

In addition, based on these length, with air under cripetura rate k=0.64, centre frequency 92MHz of frequency band H Wavelength carries out wavelength conversion for the condition of λ, λ g=λ k, then (total in above-mentioned path is long to play the antenna length in self-powered portion 5 Degree) equivalent to 0.40,0.47,0.52,0.57,0.61,0.66,0.71,0.76,0.81,0.85,0.90,0.95,1.00, 1.04、1.09、1.14λg。

Specifically, antenna length is defined as the total length of the length from " power supply " to " member forward end " (L19+L21+L22+L25+L26(+L261+L262)).The starting point of the chart of Figure 13, Figure 14 is 835mm (L19：5mm+L21： 770mm+L22：60mm), it is 0.40 λ g.

In addition, in the present embodiment, as shown in Figure 10, upper element is bent downwards when extending, it is most long in measurement result In the case of upper element length (L25G+L26G+L261+L262) be 1545mm when size it is as described below.

L25G：40mm

L26G：770mm

L261：10mm

L262：725mm.

Figure 13 is the length that upper element is made in the composition for represent the Fig. 3 with upper element in the direction shown in Figure 10 During upper change, the chart of the average antenna gain of horizonally-polarized wave in the Whole frequency band of 76MHz～108MHz.In addition, the present embodiment In, as shown in Figure 10, upper element is bent downwards when extending.

Figure 14 is the length that upper element is made in the composition for represent the Fig. 3 with upper element in the direction shown in Figure 10 During upper change, the chart of the average antenna gain of vertically polarized wave in the Whole frequency band of 76MHz～108MHz.

From Figure 13 and Figure 14, compared with there is no upper element (chart left end), in 0.65 λ g～0.95 λ There is effect in the range of g.

Further from the right side of chart, the gain during length of more than 1.05 λ g is also improved.Therefore, Tu13He In the chart of Figure 14 at least 0.65 λ g～0.95 λ g scope and 1.05 λ g～scope gain be improved, it can thus be appreciated that Characteristic produces periodically (example is for about every 0.5 λ g) change according to antenna length (the total length in above-mentioned path).

Should have in scope of effect, particularly preferably near such as 0.70 λ g, i.e. length 640mm of upper element (L25G：40mm+L26G：600mm, nothing is turned back) near.

[embodiment 2]

Using the rear portion glass pane 60 of automobile, in having made the 1st embodiment of Fig. 3 and the 9th embodiment of Figure 11 The different automotive glass antenna of the length (L25H+L26H (+L263+L264)) of upper element 25,26.Herein, determine different Frequency-antenna gain characteristics under antenna length, have calculated average characteristics.

In the present embodiment, the length (L25H+L26H (+L263+L264)) of the upper element of glass antenna is made according to 0 (nothing), 145,245,345,445,545,645,745,845,945,1045,1145,1245,1345,1445,1545 this 16 kinds Situation is changed.

In addition, based on these length, with air under cripetura rate k=0.64, centre frequency 92MHz of frequency band H Wavelength carries out wavelength conversion for the condition of λ, λ g=λ k, then (total in above-mentioned path is long to play the antenna length in self-powered portion 5 Degree) equivalent to 0.40,0.47,0.52,0.57,0.61,0.66,0.71,0.76,0.81,0.85,0.90,0.95,1.00, 1.04、1.09、1.14λg。

Specifically, antenna length is defined as the total length of the length from " power supply " to " member forward end " (L19+L21+L22+L25H+L26H(+L263+L264)).The starting point of the chart of Figure 15, Figure 16 is 835mm (L19：5mm+ L21：770mm+L22：60mm), it is 0.40 λ g.

In addition, in the present embodiment, as shown in figure 11, upper element is bent upward when extending, it is most long in measurement result In the case of upper element length (L25H+L26H+L265+L266) be 1545mm when size it is as described below.

L25H：30mm

L26H：770mm

L263：10mm

L264：735mm.

Figure 15 is the length that upper element is made in the composition for represent the Fig. 3 with upper element in the top shown in Figure 11 During change, the chart of the average antenna gain of horizonally-polarized wave in the Whole frequency band of 76MHz～108MHz.In addition, in the present embodiment, As shown in figure 11, upper element is made to bend upward when extending.

Figure 16 is the length that upper element is made in the composition for represent the Fig. 3 with upper element in the top shown in Figure 11 During change, the chart of the average antenna gain of vertically polarized wave in the Whole frequency band of 76MHz～108MHz.

From Figure 15 and Figure 16, compared with there is no upper element (chart left end), in 0.65 λ g～0.95 λ There is effect in the range of g.

Further from the right side of chart, the gain during length of more than 1.10 λ g is also improved.Therefore, Tu15He In the chart of Figure 16 at least 0.65 λ g～0.95 λ g scope and 1.10 λ g～scope gain be improved, it can thus be appreciated that Characteristic produces periodically (example is for about every 0.5 λ g) change according to antenna length (the total length in above-mentioned path).

Should have in scope of effect, particularly preferably near such as 0.66 λ g, i.e. length 540mm of upper element (L25H：30mm+L26H：510mm, nothing is turned back) near.

[embodiment 3]

Using the rear portion glass pane 60 of automobile, the length (L25I+ of the upper element of the 10th embodiment of Figure 12 has been made L26I+L265+L266) different automotive glass antenna.Herein, the frequency-antenna gain determined under different antennae length is special Property, calculate average characteristics.

In the present embodiment, make the length (L25I+L26I+L265+L266) of the upper element of glass antenna according to 0 (nothing), 45th, 145,245,345,445,545,645,745,845,945,1045,1145,1245, this 15 kinds of situations of 1345mm are become Change.

In addition, based on these length, with air under cripetura rate k=0.64, centre frequency 92MHz of frequency band H Wavelength carries out wavelength conversion for the condition of λ, λ g=λ k, then (total in above-mentioned path is long to play the antenna length in self-powered portion 5 Degree) equivalent to 0.40,0.47,0.52,0.57,0.61,0.66,0.71,0.76,0.81,0.85,0.90,0.95,1.00, 1.04、1.09λg。

Herein, specifically antenna length is defined as into the total length of the length from " power supply " to " member forward end " (L19+L21+L22+D25+L25I+26I+265+266), the starting point of two figures is 835mm (L19：5mm+L21：770mm+L22： 60mm) (=0.40 λ g).In addition, apart from D25=100mm.Therefore, when antenna length is more than 935mm (835mm+100mm), day Also include apart from D25 in line length.For example, in the case of 0.47 λ g, by the length to starting point in antenna length 835mm's and D25 deducts apart from both 100mm, and the length of upper element is 45mm.

In addition, in the present embodiment, as shown in figure 12, upper element is bent downwards when extending, it is most long in measurement result In the case of upper element length (L25I+L26I+L265+L266) be 1345mm when size it is as described below.

L25I：40mm

L26I：670mm

L265：10mm

L266：625mm.

Figure 17 is in the composition of the different Figure 12 of starting point of upper element, when making the length change of upper element, 76MHz～ The chart of the average antenna gain of horizonally-polarized wave in the Whole frequency band of 108MHz.In addition, in the present embodiment, as shown in figure 12, making Upper element bends downwards when extending.

Figure 18 is in the composition of the different Figure 12 of starting point of upper element, when making the length change of upper element, 76MHz～ The chart of the average antenna gain of vertically polarized wave in the Whole frequency band of 108MHz.

From Figure 17 and Figure 18, compared with there is no upper element (chart left end), in 0.4 λ g～0.55 λ g With in the range of 0.70 λ g～1.00 λ g have effect.Further, since apart from D25, top antenna element position to power supply Side shifting, in being displayed in figure, then offsets from the 1st embodiment, and the good scope of gain is different.

Therefore, at least in the scope and 0.70 λ g～1.00 λ g of 0.4 λ g～0.55 λ g in the chart of Figure 17 and Figure 18 Scope gain is improved, it can thus be appreciated that characteristic produces periodically (one according to antenna length (the total length in above-mentioned path) Individual example is for about every 0.4 λ g～0.5 λ g) change.

Should have in the scope of effect, the length of upper element is preferably 640mm (L25I：40mm+L26I：600mm, nothing Turn back), i.e. upper element is 740mm with the total length apart from D25, is represented in the chart of Figure 17 and Figure 18, then 0.71 Near λ g.

It follows that by the upper element of additional appropriate length in 1～embodiment of embodiment 3, compared to comparative example Constitute, with the effect for improving gain.

[embodiment 4]

Lower element 27,28 using the rear portion glass pane 60 of automobile, in the composition of the 2nd embodiment for having made Fig. 4 The different glass antenna of length (L27+L28).Herein, determine under different antennae length (the total length in the path of regulation) Frequency-antenna gain characteristics, has calculated average characteristics.

In the present embodiment, make the length (L27+L28) of the lower element of glass antenna according to 0 (nothing), 30,80,130, 240th, 440,540, this 8 kinds of situations of 640mm are changed.

In addition, based on these length, with cripetura rate k=0.64, the center of the frequency band 76MHz～108MHz of frequency band H Wavelength under frequency 92MHz in air is calculated for the condition of λ, λ g=λ k, then to the antenna length in a self-powered portion 5 (the total length in above-mentioned path) carries out wavelength conversion, equivalent to 0.36,0.39,0.41,0.43,0.49,0.58,0.63, 0.68λg。

Specifically, antenna length is defined as into the length (L19+L21+L27 from " power supply " to " member forward end " + L28), the starting point of the chart of Figure 19 and Figure 20 is 775mm (L19：5mm+L21：770mm), it is 0.36 λ g.

Figure 19 be the 2nd embodiment of Fig. 4 composition in when making the length change of lower element, 76MHz～108MHz's The chart of the average antenna gain of horizonally-polarized wave in Whole frequency band.

Figure 20 be Fig. 4 composition in when making the length change of lower element, in the Whole frequency band of 76MHz～108MHz it is vertical partially The chart of the average antenna gain of vibration wave.

From Figure 19 and Figure 20, compared with there is no lower element (chart left end), if by lower element Conductor length be set as the total length of 0.57 λ g～0.62 λ g, then with the effect for improving gain.

In addition, Figure 19 and Figure 20 chart produce as trigonometric function periodic change, Thus, it is assumed that 0.7 λ g with On frequency band, gain can be improved again.

Should have in the scope of effect, near the particularly preferred 0.59 λ g of length of lower element, i.e. 460mm (L27：40mm+ L28：Near 420mm).

It follows that, compared to the composition of comparative example, having by the lower element of additional appropriate length in embodiment 4 Improve the effect of gain.

[embodiment 5]

Using the rear portion glass pane 60 of automobile, the lower element 27 in the 3rd embodiment of Fig. 5,28 length have been made (L27+L28) the different automotive glass day of the length (L25+L26) of the fixed, length (L25+L26) of upper element 25,26 Line.Herein, the frequency-antenna gain characteristics under different antennae length are determined, average characteristics have been calculated.

In 3rd embodiment, the size of lower element 27,28 is fixed as

L27： 40mm

L28： 420mm.

Other constitute size with it is equivalently-sized shown in above-described embodiment 1.

In the present embodiment, similarly to Example 1, the length (L25+L26) of the upper element of glass antenna is made according to 0 (nothing), 145,245,345,445,545,645,745,845,945,1045,1145,1245,1345,1445,1545 this 16 kinds Situation is changed.In addition, in the present embodiment, as shown in Figure 10, upper element is bent when extending.

In addition, based on these length, with air under cripetura rate k=0.64, centre frequency 92MHz of frequency band H Wavelength carries out wavelength conversion for the condition of λ, λ g=λ k, then (total in above-mentioned path is long to play the antenna length in self-powered portion 5 Degree) equivalent to 0.40,0.47,0.52,0.57,0.61,0.66,0.71,0.76,0.81,0.85,0.90,0.95,1.00, 1.04、1.09、1.14λg。

Specifically, antenna length is defined as the total length of the length from " power supply " to " member forward end " (L19+L21+L22+L25+L26).The starting point of the chart of Figure 21, Figure 22 is 835mm (L19：5mm+L21：770mm+L22： 60mm), it is 0.40 λ g.

Figure 21 is in the 3rd embodiment, to be fixed as appropriate length, make the length change of upper element lower element When, the chart of the average antenna gain of horizonally-polarized wave in the Whole frequency band of 76MHz～108MHz.

Figure 22 is in the 3rd embodiment, to be fixed as appropriate length, make the length change of upper element lower element When, the chart of the average antenna gain of vertically polarized wave in the Whole frequency band of 76MHz～108MHz.

From Figure 21 and Figure 22, compared with there is no upper element (chart left end), in 0.65 λ g～0.95 λ There is effect in the range of g.

Further from the right side of chart, the gain during length of more than 1.15 λ g is also improved.Therefore, Tu21He In the chart of Figure 22 at least 0.65 λ g～0.95 λ g scope and 1.15 λ g～scope gain be improved, it can thus be appreciated that Characteristic produces periodically (example is every 0.5 λ g) change according to antenna length (the total length in above-mentioned path).

Should have in the scope of effect, particularly preferably near 0.70 λ g, i.e., the length of upper element is in 640mm (L25： 40mm+L26：Near 600mm).

From embodiment 5, compared with Example 4, by adding suitable top unit in the composition of the 2nd embodiment Part, with the effect for improving gain.

In addition, comparing embodiment 5 and embodiment 1 understand, in the case of with lower element, by additional upper element Length produce gain change it is also identical.

[embodiment 6]

Shown in the composition of the comparative example that the 1st embodiment and Fig. 1 of Fig. 3 have been manufactured using the rear portion glass pane 60 of automobile Glass antenna, determines the frequency-antenna gain characteristics of the 1st embodiment and comparative example.

The size of comparative example is roughly the same with the 1st embodiment, only exist be not provided with upper element (25, difference 26). In addition, power supply 55 is located at the top for electrical connection lateral direction element 21 shown in Fig. 2, also exist first with for electrically connecting longitudinal direction The difference of the length 60mm shorter than Fig. 2 of the longitudinal direction of the corresponding element 51a of part 11.

Herein, it is considered to the result of embodiment 1, the upper element 25,26 of the present embodiment is sized to

L25： 40mm

L26： 600mm.

Other sizes are same as Example 1.

Figure 23 is to be compared, represent 76MHz～108MHz the composition with upper element shown in Fig. 3 and comparative example Each frequency band in horizonally-polarized wave antenna gain chart.

Figure 24 is to be compared, represent 76MHz～108MHz the composition with upper element shown in Fig. 3 and comparative example Each frequency band in vertically polarized wave antenna gain chart.

From the tendency of the chart of Figure 23 and Figure 24, relative to the antenna gain of comparative example, particularly 76MHz～ In the low gain frequency band of 96MHz and the gain reduction frequency band of 100MHz～104MHz, the reduction of the antenna gain of the 1st embodiment It is eliminated, gain is improved.

Thereby, FM broadcast band (88MHz～108MHz) in such as U.S. Europe can not only be covered, and can be covered FM bands (76MHz～90MHz) of Japan, copes with broadband.

In addition, with regard to the horizonally-polarized wave shown in Figure 23, the average gain of total frequency band of the composition of comparative example is 53.1dB μ V, the average gain of total frequency band of the composition with upper element is 54.1dB μ V.

With regard to the vertically polarized wave shown in Figure 24, the average gain of total frequency band of the composition of comparative example is 56.6dB μ V, is had The average gain for having total frequency band of the composition of upper element is 58.0dB μ V.

Therefore, by arranging upper element, relative to comparative example, the antenna performance of total frequency band of the 1st embodiment is obtained Improve.

[embodiment 7]

Shown in the composition of the comparative example that the 2nd embodiment and Fig. 1 of Fig. 4 have been manufactured using the rear portion glass pane 60 of automobile Glass antenna, determines the frequency-antenna gain characteristics of the 2nd embodiment and comparative example.

Herein, it is considered to the result of embodiment 1, the lower element 27,28 of the present embodiment is sized to

L27： 40mm

L28： 420mm.

Other sizes are same as Example 1.

Figure 25 is to be compared, represent 76MHz～108MHz the composition with lower element shown in Fig. 4 and comparative example Each frequency band in horizonally-polarized wave antenna gain chart.

Figure 26 is each frequency band for the composition with lower element and comparative example being compared, being represented 76MHz～108MHz The chart of the antenna gain of middle vertically polarized wave.

From the tendency of the chart of Figure 25 and Figure 26, particularly 76MHz～96MHz low gains frequency band and 104MHz～ In the frequency band of 108MHz, gain is improved.Thereby, the FM broadcast band (88MHz in such as U.S. Europe can not only be covered ～108MHz), and the FM of Japan can be covered with (76MHz～90MHz), cope with broadband.

In addition, with regard to the horizonally-polarized wave shown in Figure 25, the average gain of total frequency band of the composition of comparative example is 53.1dB μ V, the average gain of total frequency band of the composition with lower element is 53.8dB μ V.

With regard to the vertically polarized wave shown in Figure 26, the average gain of total frequency band of the composition of comparative example is 56.6dB μ V, is had The average gain for having total frequency band of the composition of lower element is 57.6dB μ V.

Therefore, by arranging lower element, relative to comparative example, the antenna performance of total frequency band of the 2nd embodiment is obtained Improve.

[embodiment 8]

Manufactured using the rear portion glass pane 60 of automobile shown in the 3rd embodiment of Fig. 5 and the composition of the 2nd embodiment Glass antenna, determines the frequency-antenna gain characteristics of the 3rd embodiment and the 2nd embodiment.In 3rd embodiment, constitute Size it is identical with above-described embodiment 6 and embodiment 7.

The glass antenna 50 of the comparative example shown in the glass antenna with lower element and Fig. 1 is compared above, The upper element by adding specific length is confirmed, with the effect for improving gain.

Figure 27 be by the composition with upper element and lower element shown in Fig. 5 and shown in Fig. 4 with lower element Composition be compared, represent the chart of the antenna gain of horizonally-polarized wave in each frequency band of 76MHz～108MHz.

Figure 28 be by the composition with upper element and lower element shown in Fig. 5 and shown in Fig. 4 with lower element Composition be compared, represent the chart of the antenna gain of vertically polarized wave in each frequency band of 76MHz～108MHz.

From the chart of Figure 27 and Figure 28, particularly in the gain reduction frequency band of 100MHz～104MHz, gain drop Low being eliminated and be improved.Thereby, for example Japanese FM bands (76MHz～90MHz) can not only be covered, and can be covered FM broadcast band (88MHz～108MHz) in lid U.S. Europe, copes with broadband.

In addition, with regard to the horizonally-polarized wave shown in Figure 27, the average increasing of total frequency band of the composition of the 2nd embodiment of Fig. 4 Benefit is 53.8dB μ V, and the average gain of total frequency band of the composition of the 3rd embodiment of Fig. 5 is 54.6dB μ V.

With regard to the vertically polarized wave shown in Figure 28, the average gain of total frequency band of the composition of the 2nd embodiment of Fig. 4 is The average gain of total frequency band of the composition of the 3rd embodiment of 57.6dB μ V, Fig. 5 is 58.5dB μ V.

Compared from above-mentioned, by both the lower element and upper element that arrange appropriate length, under only having The composition of square element is compared, and the antenna performance of total frequency band is improved.

[embodiment 9]

The composition of the 2nd embodiment of the 5th embodiment and Fig. 4 of Fig. 7 has been manufactured using the rear portion glass pane 60 of automobile Shown glass antenna, determines the frequency-antenna gain characteristics of the 5th embodiment and the 2nd embodiment.

In 5th embodiment, loop forms the size of element 8,9 and is

L8： 40mm

L9： 40mm.

The size that other are constituted is identical with above-described embodiment 1, embodiment 6 and embodiment 7.

Figure 29 be will be formed with lower element and loop shown in Fig. 7 the composition of element with shown in Fig. 4 with lower section The composition of element is compared, represents the chart of the antenna gain of horizonally-polarized wave in each frequency band of 76MHz～108MHz.

Figure 30 be will be formed with lower element and loop shown in Fig. 7 the composition of element with shown in Fig. 4 with lower section The composition of element is compared, represents the chart of the antenna gain of vertically polarized wave in each frequency band of 76MHz～108MHz.

From the chart of Figure 29 and Figure 30, particularly 100MHz～104MHz gain reduction frequency band and 104MHz～ In 108MHz, gain reduction is eliminated and is improved.Thereby, can not only cover for example Japanese FM bands (76MHz～ 90MHz), and can cover the U.S. Europe FM broadcast band (88MHz～108MHz), cope with broadband.

With regard to the horizonally-polarized wave shown in Figure 29, the average gain of total frequency band of the composition of the 2nd embodiment of Fig. 4 is The average gain of total frequency band of the composition of the 5th embodiment of 53.8dB μ V, Fig. 7 is 54.7dB μ V.

With regard to the vertically polarized wave shown in Figure 30, the average gain of total frequency band of the composition of the 2nd embodiment of Fig. 4 is The average gain of total frequency band of the composition of the 5th embodiment of 57.6dB μ V, Fig. 7 is 58.4dB μ V.

Compared from above-mentioned, by arranging loop both element and lower element are formed, and only there is lower element Composition compare, the antenna performance of total frequency band is improved.

[embodiment 10]

Shown in the composition of the comparative example that the 6th embodiment and Fig. 1 of Fig. 8 have been manufactured using the rear portion glass pane 60 of automobile Glass antenna, determines the frequency-antenna gain characteristics of the 6th embodiment and comparative example.

The size of the composition of the 6th embodiment with reference to above-described embodiment 1, embodiment 6, embodiment 7 and embodiment 9, therewith It is identical.

Figure 31 is to enter the composition and comparative example that form element with upper element, lower element and loop shown in Fig. 8 The chart of the antenna gain of horizonally-polarized wave in the capable each frequency band for comparing, representing 76MHz～108MHz.

Figure 32 is to enter the composition and comparative example that form element with upper element, lower element and loop shown in Fig. 8 The chart of the antenna gain of vertically polarized wave in the capable each frequency band for comparing, representing 76MHz～108MHz.

From the chart of Figure 31 and Figure 32, particularly in the gain reduction frequency band of 100MHz～104MHz, gain drop Low being eliminated and be improved, gain in the low gain frequency band of 76MHz～96MHz is improved.Thereby, can fully cover FM bands (76MHz～90MHz) of lid such as Japan and both FM broadcast band (88MHz～108MHz) in U.S. Europe, energy Enough tackle broadband.

With regard to the horizonally-polarized wave shown in Figure 31, the average gain of total frequency band of the composition of the comparative example of Fig. 1 is 53.1dB μ The average gain of total frequency band of the composition of the 6th embodiment of V, Fig. 8 is 55.0dB μ V.

With regard to the horizonally-polarized wave shown in Figure 32, the average gain of total frequency band of the composition of the comparative example of Fig. 1 is 56.6dB μ The average gain of total frequency band of the composition of the 6th embodiment of V, Fig. 8 is 58.8dB μ V.

It was found that by arranging upper element, lower element, loop formation element, entering with the composition of the comparative example shown in Fig. 1 Row compares, and the overall gain of both horizonally-polarized wave and vertically polarized wave is improved, and frequency characteristic is improved.

Table 1 collects the comparison of the antenna gain of the horizonally-polarized wave for showing 6～embodiment of embodiment 10.Table 2 collects and shows The comparison of the antenna gain of the vertically polarized wave of 6～embodiment of embodiment 10 is gone out.

[table 1]

◆ antenna gain has a guide look of (horizonally-polarized wave) [dB μ V]

[table 2]

◆ antenna gain has a guide look of (vertically polarized wave) [dB μ V]

As shown in table 1, the average gain of the horizonally-polarized wave of frequency band H in a comparative example for 53.1dB μ V, in the 1st embodiment party In formula for 54.1dB μ V, in the 2nd embodiment for 53.8dB μ V, in the 3rd embodiment for 54.6dB μ V, the 5th implement It is 54.7dB μ V in mode, is 55.0dB μ V in the 6th embodiment.

As shown in table 2, the average gain of the vertically polarized wave of frequency band H in a comparative example for 56.6dB μ V, in the 1st embodiment party In formula for 58.0dB μ V, in the 2nd embodiment for 57.6dB μ V, in the 3rd embodiment for 58.5dB μ V, the 5th implement It is 58.4dB μ V in mode, is 58.8dB μ V in the 6th embodiment.

Therefore, compared with comparative example, formed by arranging lower element, arranging upper element, setting loop in the present invention Element and they are combined, gain is improved, and can cover broadband.

The possibility utilized in industry

Present invention is mainly used for AM broadcast band (MW bands) (520kHz～1700kHz) (New Zealand is 520kHz), long wave are wide Broadcast the FM broadcast bands of band (LW bands) (150kHz～280kHz), shortwave broadcasting band (SW bands) (2.3MHz～26.1MHz), Japan FM broadcast band (88MHz～108MHz) in (76MHz～95MHz), U.S. Europe.Further, it is also used for terrestrial-wave digital electricity TV VHF depending on broadcasting (473MHz～767MHz), the digital television broadcasting (698MHz～806MHz), North America and Europe in the U.S. Band (45MHz～86MHz, 175MHz～225MHz), digital radio broadcasting (DAB：170MHz～240MHz, 1450MHz～ 1490MHz), 800MHz bands (810MHz～960MHz), the UHF band (300MHz～3GHz) of automobile telephone, special short distance lead to Letter (DSRC:Dedicated Short Range Communication, 915MHz bands) and automobile keyless entry system The adjustment of (300MHz～450MHz) etc..

Symbol description

1,1A, 1B, 1C, 1D, 1E, 1F glass antenna (Vehicular glass antenna)

5 power supplies

6 the 1st power supplies

7 the 2nd power supplies

8 the 1st loops form element

9 the 2nd loops form element

The antenna conductor of 10,10C, 10F the 1st

11 for electrical connection stave

12 the 1st lateral direction elements

13 the 2nd lateral direction elements

The antenna conductor of 20,20A, 20B, 20C, 20D, 20E, 20F the 2nd

21 for electrical connection lateral direction element

22,22F connection staves

23 the 3rd lateral direction elements

24 the 4th lateral direction elements

25,25G, 25H, 25I top stave (upper element)

26,26G, 25H, 26I top lateral direction element (upper element)

The lower bending stave in 261,265 tops

Turn back lateral direction element under 262,266 tops

Stave is bent on 263 tops

Turn back lateral direction element on 262 tops

27 lower section staves (lower element, the 1st lower section stave)

28 lower section lateral direction elements (lower element)

281 the 2nd lower section staves (lower section bending stave)

Turn back lateral direction element 282 lower sections

29,29F adjustment elements

40 demisters

41a, 41b busbar

42 heater wires

60 rear portion glass panes (rear window)

61 car body opening edges (outer peripheral edge of rear portion glass pane)

The rising wood (rising wood of rear portion glass pane) of 61u car body opening edges

The side edge part (side edge part of rear portion glass pane) of 61s car body opening edges

K cripetura rates (=0.64)

Wavelength (wavelength under 92MHz in air) under the centre frequency of the frequency band that λ is received in air

λg λxk

Claims (16)

1. Vehicular glass antenna, it is disposed near the rising wood of window glass for vehicle and receives the vehicle of 2 kinds of frequency bands using Glass antenna,

The glass antenna possesses power supply, the 1st antenna conductor and the 2nd antenna conductor,

1st antenna conductor possesses

One end be connected with the power supply and from the power supply extend upward for electrical connection stave,

One end and the power supply described are connected and from the power supply to away from power supply for electrical connection stave The 1st lateral direction element that direction substantially horizontally extends, and

It is connected for electrical connection stave and horizontal with the described 1st with described positioned at the top of the 1st lateral direction element, one end To upwardly extending 2nd lateral direction element in bearing of trend identical side of element,

2nd antenna conductor possesses

One end and the power supply described are connected and in the extension side with the 1st lateral direction element for electrical connection stave It is upwardly extending for electrical connection lateral direction element to identical side,

The connection stave that one end is connected with the other end for electrical connection lateral direction element and extends upward,

One end connects and horizontal to the 3rd substantially horizontally extended near the direction of the power supply with the connection stave To element,

Connected with stave with the connection positioned at the top of the 3rd lateral direction element, one end and laterally first with the described 3rd Upwardly extending 4th lateral direction element in bearing of trend identical side of part,

Indulge the top that one end connects and extend upward with the other end or the 4th lateral direction element of the connection stave To element, and

One end is connected with the top stave and is upwardly extending with the bearing of trend identical side of the 3rd lateral direction element Top lateral direction element,

1st lateral direction element is close to each other with the 3rd lateral direction element and Capacitance Coupled, so as to constitute the 1st Capacitance Coupled portion,

2nd lateral direction element is close to each other with the 4th lateral direction element and Capacitance Coupled, so as to constitute the 2nd Capacitance Coupled portion,

The top lateral direction element is located at the top in the 2nd Capacitance Coupled portion.

2. Vehicular glass antenna as claimed in claim 1, it is characterised in that away from constituting the 1st Capacitance Coupled portion The other end of the power supply of the 1st lateral direction element is open end, positioned at the power supply side of the 3rd lateral direction element The other end be open end,

It is open end away from the other end of the power supply of the 2nd lateral direction element for constituting the 2nd Capacitance Coupled portion, position The other end in the power supply side of the 4th lateral direction element is open end.

3. Vehicular glass antenna as claimed in claim 1 or 2, it is characterised in that the top lateral direction element with it is described The bearing of trend identical side of the 3rd lateral direction element is turned back after upwardly extending, in the bearing of trend with the 1st lateral direction element Identical side upwardly extends.

4. the Vehicular glass antenna as any one of claims 1 to 3, it is characterised in that in 2 kinds of frequency bands Side frequency band centre frequency under aerial wavelength be λ, glass wavelength cripetura rate be k, λ g=λ k, n be integer when, from The power supply sequentially pass through it is described for electrical connection lateral direction element, the connection stave, the top stave, Path to the front end of the top lateral direction element, or the path is plus to the top lateral direction element The combined length of the leement duration till the terminal turned back is the scope of (0.15+0.5n) λ g～(0.45+0.5n) λ g.

5. the Vehicular glass antenna as any one of Claims 1 to 4, it is characterised in that the 2nd antenna conductor tool It is standby：

One end and the 1st lower section stave for being connected for electrical connection lateral direction element and extending downwards, and

It is connected with the other end of the 1st lower section stave and in the bearing of trend identical side with the 3rd lateral direction element Upwardly extending lower section lateral direction element.

6. Vehicular glass antenna as claimed in claim 5, it is characterised in that the lower section lateral direction element is with the described 3rd The bearing of trend identical side of lateral direction element is turned back after upwardly extending, in the bearing of trend phase with the 1st lateral direction element Same side upwardly extends.

7. the Vehicular glass antenna as described in claim 5 or 6, it is characterised in that the 2nd antenna conductor possess one end with The other end connection of the lower section lateral direction element, the other end and the 2nd lower section be connected for electrical connection lateral direction element are longitudinally Element,

By described for electrical connection lateral direction element, the 1st lower section stave, the lower section lateral direction element and the described 2nd Lower section stave forms lower side hydraulic circuit.

8. the Vehicular glass antenna as any one of claim 5～7, it is characterised in that in 2 kinds of frequency bands Side frequency band centre frequency under aerial wavelength be λ, glass wavelength cripetura rate be k, λ g=λ k when, from the power supply Portion sequentially passes through described for electrical connection lateral direction element, the 1st lower section stave, to the front end of the lower section lateral direction element Till path, or the path plus the lower section lateral direction element the leement duration turned back or to the lower section The total length of the leement duration till the terminal in loop is the scope of 0.57 λ g～0.62 λ g.

9. the Vehicular glass antenna as any one of claim 1～8, it is characterised in that the glass antenna has the 1st Loop forms at least one that element and the 2nd loop are formed in element,

1st loop forms element and is connected for electrical connection lateral direction element and the 1st lateral direction element with described,

2nd loop forms element and is connected with the 1st lateral direction element and the 2nd lateral direction element.

10. the Vehicular glass antenna as any one of claim 1～9, it is characterised in that the 2nd antenna conductor Possess one end and the connection stave connect and with the bearing of trend identical direction of the 1st lateral direction element on prolong The adjustment element stretched.

11. Vehicular glass antennas as any one of claim 1～10, it is characterised in that the vehicle glass day Line receives the low-frequency band of 530kHz～1605kHz and the high frequency band of 76MHz～108MHz.

12. Vehicular glass antennas as any one of claim 1～11, it is characterised in that the power supply is included 1st power supply and the 2nd power supply,

It is described to be connected with the 1st power supply for electrical connection stave,

It is described to be connected with the 2nd power supply for electrical connection lateral direction element.

13. rear portion glass panes, it is characterised in that possess the Vehicular glass antenna any one of claim 1～12.

14. rear portion glass panes as claimed in claim 13, it is characterised in that the Vehicular glass antenna reception 530kHz～ The low-frequency band of 1605kHz and the high frequency band of 76MHz～108MHz,

The different types of antenna for receiving the frequency band higher than the high frequency band is provided with,

The Vehicular glass antenna adjusts the reception characteristic of different types of antenna.

The 15. rear portion glass panes as described in claim 13 or 14, it is characterised in that the rear portion glass pane is provided with for receiving With the auxiliary antenna of the frequency band identical frequency band of at least one party in 2 kinds of frequency bands,

The glass antenna cooperates with operating to carry out diversity reception with the auxiliary antenna.

The 16. rear portion glass panes as any one of claim 13～15, it is characterised in that the demister of electrified regulation formula The rear portion glass pane is arranged at,

Many piece heater wires of the demister with the horizontal direction extension along the rear portion glass pane, in the rear portion's window glass The left and right both ends side of glass is vertically extending and multiple busbars that power to many heater wires,

The Vehicular glass antenna is arranged on the top of the demister and away from more than the demister 30mm.