WO2020199334A1 - Dual polarized radiating unit and base station antenna - Google Patents

Dual polarized radiating unit and base station antenna Download PDF

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Publication number
WO2020199334A1
WO2020199334A1 PCT/CN2019/088811 CN2019088811W WO2020199334A1 WO 2020199334 A1 WO2020199334 A1 WO 2020199334A1 CN 2019088811 W CN2019088811 W CN 2019088811W WO 2020199334 A1 WO2020199334 A1 WO 2020199334A1
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WO
WIPO (PCT)
Prior art keywords
conductor
radiating arm
dual
arm
radiating
Prior art date
Application number
PCT/CN2019/088811
Other languages
French (fr)
Chinese (zh)
Inventor
高洁
Original Assignee
摩比科技（深圳）有限公司
摩比通讯技术（吉安）有限公司
摩比科技(西安)有限公司
摩比天线技术（深圳）有限公司
深圳市晟煜智慧网络科技有限公司
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Application filed by 摩比科技（深圳）有限公司, 摩比通讯技术（吉安）有限公司, 摩比科技(西安)有限公司, 摩比天线技术（深圳）有限公司, 深圳市晟煜智慧网络科技有限公司 filed Critical 摩比科技（深圳）有限公司
Publication of WO2020199334A1 publication Critical patent/WO2020199334A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction

Definitions

  • the invention belongs to the radio field, and particularly relates to a dual-polarization radiation unit and a base station antenna.
  • Antenna as the throat of the wireless communication system, is an important system component that radiates and receives electromagnetic waves.
  • the performance of the antenna plays a decisive role in the overall performance of the mobile communication system. With the continuous upgrading of the capacity and quality of mobile communication systems, people have put forward higher and higher performance index requirements for base station antennas.
  • Multi-standards, multi-channels, and miniaturization are the basic requirements for base station antennas in the pre-5G era where base station site selection is difficult.
  • low-frequency antennas used for network coverage have always been and occupy an important position in various communication eras, and competition is becoming more and more fierce. Therefore, small, low-cost, high-performance low-frequency products are the research of major base station antenna manufacturers. Hot spot.
  • the main shortcomings of the existing low-frequency base station antennas are that they cannot balance the product gain index and the appearance size, and cannot achieve small size and light weight, which is not conducive to reducing costs, and has no competitive advantage in the current market.
  • the purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a dual-polarization radiating unit and a base station antenna, which aim to ensure the radiation performance of the dual-polarization radiating unit while reducing the size.
  • the present invention provides a dual-polarization radiation unit, comprising a folding vibrator, a balun structure connected to the folding vibrator, and a feeding conductor for coupling and feeding the folding vibrator,
  • the folded vibrator includes four conductor rings arranged in the circumferential direction, each of the conductor rings is symmetrically arranged, and the symmetry axes of the two adjacent conductor rings are vertically arranged, and the symmetry axes of the two opposite conductor rings Overlap to form a crisscross symmetry axis, each of the conductor loops has two connecting ends facing the center of the crisscross axis, and at the ends facing away from the center of the crisscross axis and respectively facing the two adjacent conductor loops
  • the section is provided with a first branch and a second branch extending to the center of the cross axis;
  • the balun structure is provided with four communicating holes penetrating up and down on its upper surface, and the four communicating holes are respectively located in the four quadrants of the cross axis, and any two of the conductor rings are connected The ends are respectively connected to the hole walls of two adjacent communicating holes;
  • each feed conductor There are two feed conductors and they are arranged crosswise, one end of each feed conductor is inserted into one of the communicating holes, and the other end is connected to the diagonal communicating hole.
  • each of the conductor loops further includes a first radiating arm, a second radiating arm, a third radiating arm, and a fourth radiating arm that are sequentially connected, and are connected to the first radiating arm, the second radiating arm, and the The fifth, sixth, seventh, and eighth radiating arms are symmetrically arranged on the third radiating arm and the fourth radiating arm, and the fourth radiating arm is connected to the eighth radiating arm;
  • the two connecting ends are respectively arranged on the first radiating arm and the second radiating arm, and the first branch is connected to the third radiating arm facing the center of the first cross axis At the end, the second branch is connected to the end of the seventh radiating arm facing the center of the first cross axis;
  • the cross-sectional shapes of the second radiating arm and the sixth radiating arm are changed along the extension direction.
  • the cross-sectional shapes of the first radiating arm and the fifth radiating arm are changed along the extension direction.
  • first radiating arm, the second radiating arm and/or the first branch are provided with reinforcing ribs on the lower surface thereof.
  • the dual-polarization radiation unit further includes a plurality of dielectric buckles made of insulating materials, and the first radiating arm and the fifth radiating arm of any one of the folded vibrators have a gap and are The medium snap-fit connection, the third radiating arm of the folded vibrator and the adjacent seventh radiating arm of the folded vibrator leave a gap and are connected by the medium snap-fit.
  • the dual-polarization radiation unit further includes an inlay medium sleeved on the feeding conductor and located in the communicating hole, and the inlay medium is made of insulating material and is used to define the opposite of the feeding conductor.
  • the communication hole moves.
  • the dual-polarization radiation unit further includes a reflector, and the balun structure is connected to the reflector and insulated from the reflector.
  • the dual-polarization radiation unit further includes an insulating gasket for fixing the balun structure on the reflector, and the insulating gasket includes a backing plate main body and a backing plate body connected to the backing plate main body and downward Extending bumps, the insulating gasket is provided with a through hole on the lower surface of the bump upward, which penetrates to the upper surface of the backing plate main body, and there are two through holes for each of the two feeding conductors Body through
  • the reflecting plate is provided with fixing holes penetrating up and down on the upper surface thereof, the reflecting plate is connected to the main body of the backing plate, and the fixing holes of the reflecting plate are sleeved into the bumps.
  • the dual-polarization radiation unit further includes a cable that includes an inner conductor, a dielectric layer, an outer conductor, and a skin from the inside to the outside, the inner conductor is electrically connected to the feed conductor, and the The outer conductor is electrically connected to the balun structure.
  • the present invention also provides a base station antenna, which includes the above-mentioned dual-polarization radiation unit, and the dual-polarization radiation unit is arranged in rows and columns.
  • the dual-polarization radiation unit provided by the present invention has a bandwidth of 698MHz to 960MHz, has a simple structure, is suitable for mass production, has a small size, meets the needs of antenna miniaturization, and has excellent radiation such as convergent wave width, high gain, high FBR, etc. performance.
  • FIG. 1 is an overall schematic diagram of a dual-polarization radiation unit according to Embodiment 1 of the present invention
  • Fig. 2 is a side view of the dual-polarization radiation unit according to the first embodiment of the present invention
  • Fig. 3 is a perspective view of a dual-polarization radiation unit according to the first embodiment of the present invention, in which the reflector is not visible;
  • FIG 4 is another perspective view of the dual-polarized radiation unit according to the first embodiment of the present invention, in which the reflector is not visible;
  • Figure 5 is a top view of the folded vibrator and the feed conductor in the first embodiment of the present invention.
  • Figure 6 is a schematic diagram of a connection between a feed conductor and a cable in the first embodiment of the present invention
  • Figure 7 is a side view of the structure in Figure 6;
  • Fig. 8 is another schematic diagram of the connection between the feed conductor and the cable in the first embodiment of the present invention.
  • Fig. 9 is a schematic diagram of a base station antenna according to the second embodiment of the present invention.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the present invention, “plurality” means two or more than two, unless specifically defined otherwise.
  • the side in the positive direction of the X-axis is defined as the right, and the side in the negative direction of the X-axis is defined as the left ;
  • the side in the positive direction of the Y-axis is defined as the front, and the side in the negative direction of the Y-axis is defined as the back;
  • the side in the positive direction of the Z-axis is defined as above, and the side in the negative direction of the Z-axis is defined as below.
  • this embodiment provides a dual-polarization radiation unit, including a folding vibrator 10, a balun structure 20 connected to the folding vibrator 10, and a feeding conductor for coupling and feeding the folding vibrator 10 30.
  • the folded vibrator 10 includes four conductor loops, and the four conductor loops are arranged in the circumferential direction.
  • the conductor rings are arranged symmetrically, and the symmetry axes of two adjacent conductor rings are arranged vertically, and the symmetry axes of the two opposite conductor rings overlap to form a cross coordinate axis S1, and each conductor ring has two centers facing the cross coordinate axis S1
  • a first stub 151 and a second stub 152 extending toward the center of the cross coordinate axis S1 are provided at the ends facing away from the center of the cross coordinate axis S1 and respectively toward the two adjacent conductor loops.
  • the four conductor loops are named the first vibrator 10A, the second vibrator 10B, the third vibrator 10C, and the fourth vibrator 10D in the counterclockwise direction, the right side of the first vibrator 10A and the left side of the fourth vibrator 10D.
  • the left side of the first vibrator 10A and the right side of the second vibrator 10B are in the second quadrant of the cross-coordinate axis S1
  • the left side of the second vibrator 10B and the right side of the third vibrator 10C are in the cross coordinate
  • the left side of the third vibrator 10C and the right side of the fourth vibrator 10D are located in the fourth quadrant of the cross coordinate axis S1.
  • the arrangement of the first branch 151 and the second branch 152 extends the current path, effectively improving the impedance bandwidth characteristics of the radiation unit and effectively reducing the size of the radiation unit under the working bandwidth.
  • the upper surface of the balun structure 20 is provided with four communicating holes 21 that penetrate up and down.
  • the four communicating holes 21 are respectively located in the four quadrants of the cross axis S1.
  • the two connecting ends of any conductor ring are respectively connected to two The hole wall of the adjacent communicating hole 21.
  • the four communicating holes 21 are named the first through hole 21A, the second through hole 21B, the third through hole 21C, and the fourth through hole 21D in the counterclockwise direction.
  • the first through hole 21A is located on the cross coordinate axis S1.
  • the second through hole 21B is located in the third quadrant of the cross coordinate axis S1
  • the third through hole 21C is located in the fourth quadrant of the cross coordinate axis S1
  • the fourth through hole 21D is located in the first quadrant of the cross coordinate axis S1.
  • feed conductors 30 There are two feed conductors 30 and are arranged crosswise. One end of any feed conductor 30 is inserted into one of the communicating holes 21 and the other end is inserted into the diagonal communicating hole 21 or connected to the diagonal communicating hole 21, so as to lie on the cross axis. S1 is coupled to feed the reduced oscillators 10 in the two quadrants of the corner.
  • each feed conductor 30 is inserted into two diagonal communication holes 21 respectively.
  • the two feed conductors 30 are respectively named a first conductor 30A and a second conductor 30B.
  • the first conductor 30A passes through the first through hole 21A and the third through hole 21C, respectively, to be located in the second quadrant and the fourth quadrant of the folding vibrator 10
  • the second conductor 30B passes through the second through hole 21B and the fourth through hole 21D to respectively feed the parts of the folded vibrator 10 located in the first quadrant and the third quadrant.
  • the dual-polarization radiation unit provided in this embodiment has a bandwidth of 698MHz to 960MHz, has a simple structure, is suitable for mass production, has a small size, meets the needs of miniaturization of antennas, and has excellent convergent bandwidth, high gain, high FBR, etc. Radiation performance.
  • each conductor ring also includes a first radiating arm 111, a second radiating arm 121, a third radiating arm 131, and a fourth radiating arm 141 that are connected in sequence, and are connected to the first radiating arm 111 and the second radiating arm respectively.
  • the fifth radiating arm 112, the sixth radiating arm 122, the seventh radiating arm 132 and the eighth radiating arm 142 are symmetrically arranged on the arm 121, the third radiating arm 131, and the fourth radiating arm 141.
  • the fourth radiating arm 141 is connected to the eighth Radiant arm 142.
  • the two connecting ends are respectively arranged on the first radiating arm 111 and the second radiating arm 121, the first branch 151 is connected to the end of the third radiating arm 131 facing the center of the cross coordinate axis S1, and the second branch 152 is connected At the end of the seventh radiating arm 132 facing the center of the cross coordinate axis S1.
  • the fourth radiating arm 141 and the eighth radiating arm 142 are located on the same circumference, and the overall outer contours of the four conductor rings are circular. In other embodiments, the fourth radiating arm 141 and the eighth radiating arm 142 are connected to each other, and may have a square shape, a regular octagonal shape, or a regular quadrangular shape.
  • each radiating arm makes a hollow structure formed inside the conductor ring, and a hollow structure is also formed between the conductor rings. This design realizes the miniaturization and light weight of the dual-polarization radiation unit.
  • the cross-sectional shapes of the second radiating arm 121 and the sixth radiating arm 122 are changed along the extension direction. That is, the second radiating arm 121 and the sixth radiating arm 122 are both irregular in shape, and this design is beneficial to obtain better impedance matching compared to the design of a constant cross-section rod.
  • the second radiating arm 121 and the sixth radiating arm 122 are symmetrically arranged, and both are formed by connecting two arc-shaped rods with the same arc center and a connecting piece radially connected to the two arc-shaped rods.
  • the arc diameters of the arc-shaped rods are different, and the radial cross-sectional dimensions are different.
  • the second radiating arm 121 and the sixth radiating arm 122 are respectively formed by connecting a plurality of straight rods with different cross-sectional sizes, and may also be in other forms, and this solution is not uniquely specified.
  • the cross-sectional shapes of the first radiating arm 111 and the fifth radiating arm 112 are changed along the extending direction. That is, the first radiating arm 111 and the fifth radiating arm 112 are also variable cross-section rods. This design can improve the impedance bandwidth performance of the dual-polarized radiation unit.
  • the first radiating arm 111 and the second radiating arm 121 are symmetrically arranged, the third radiating arm 131 and the fourth radiating arm 141 are symmetrically arranged, and the first radiating arm 111 and the third radiating arm 131 are different in structure.
  • the first radiating arm 111, the second radiating arm 121 and/or the first branch 151 are provided with reinforcing ribs 16 on the lower surface thereof.
  • the first radiating arm 111 and the fifth radiating arm 112, the second radiating arm 121 and the sixth radiating arm 122, the first stub 151 and the second stub 152 are three pairs of radiating pairs, and the reinforcing ribs 16 are arranged in the three pairs of radiating pairs Any pair, any two pairs or all radiation pairs. Realize the lightweight design of the radiation unit while obtaining good electrical performance.
  • the reinforcing ribs 16 are located at the edge positions of the lower surfaces of the first radiating arm 111, the second radiating arm 121, the first branch 151, the fifth radiating arm 112, the sixth radiating arm 122 and the second branch 152, In other embodiments, the reinforcing rib 16 may also be located at the first radiating arm 111, the second radiating arm 121, the first branch 151, the fifth radiating arm 112, the sixth radiating arm 122, and the second branch 152. The middle of the lower surface or other locations.
  • the dual-polarization radiation unit also includes a plurality of dielectric buckles 40 made of insulating materials, any of the first radiating arm 111 and the fifth radiating arm 112 of the folded vibrator 10 is left with a gap and is made of dielectric The buckle 40 is buckled and connected.
  • the third radiating arm 131 of the folded vibrator 10 and the seventh radiating arm 132 of the adjacent foldable vibrator 10 have a gap and are buckled and connected by the dielectric buckle 40. This design takes into account the electrical performance and effectively improves the structural strength of the four conductor loops.
  • the media buckle 40 is not limited to the position and number of the illustrated embodiment.
  • the media buckle 40 is made of a high temperature resistant material to prevent the media buckle 40 from melting at high temperatures.
  • the media buckle 40 can be made of high temperature resistant plastic or ceramic.
  • the feeding conductor 30 includes a first feeding section 31, a connecting section 32, and a second feeding section 33 that are sequentially connected.
  • the first feeding section 31 and the second feeding section 33 are respectively used for signal
  • the power is fed to the folding vibrator 10, and the connecting section 32 is used to transfer the signal output from the first power feeding section 31 to the second power feeding section 33.
  • the first power feeding section 31 is located in a communicating hole 21, and the second power feeding section 33 is located in a diagonal communicating hole 21.
  • the first feed section 31 of the first conductor 30A is located in the first through hole 21A and is used to feed the left side of the first vibrator 10A and the right side of the second vibrator 10B, and the second feed section 33 of the first conductor 30A Located in the third through hole 21C and used to feed the left side of the third vibrator 10C and the right side of the fourth vibrator 10D; the first feeding section 31 of the second conductor 30B is located in the fourth through hole 21D and used to feed the fourth The left side of the vibrator 10D and the right side of the first vibrator 10A are fed, and the second feed section 33 of the second conductor 30B is located in the second through hole 21B and is used to feed the left side of the second vibrator 10B and the right side of the third vibrator 10C Electricity.
  • the connecting sections 32 of the first conductor 30A and the connecting sections 32 of the second conductor 30B are staggered up and down.
  • the dual-polarization radiation unit further includes an inlay medium 50 sleeved on the feeding conductor 30 and located in the communication hole 21.
  • the inlay medium 50 is made of insulating material and is used to limit the movement of the feeding conductor 30 relative to the communication hole 21. This design not only takes into account the electrical performance, but also effectively improves the structural reliability of the feed conductor 30.
  • the first feeding section 31 is connected with two inlay dielectrics 50, so that the first feeding section 31 of the two feeding conductors 30 is fixed on the first through hole 21A and the fourth through hole 21D, respectively, and the second feeding section A damascene medium 50 is connected to 33, so that the second feeding sections 33 of the two feeding conductors 30 are fixed on the third through hole 21C and the second through hole 21B, respectively.
  • the feeding conductor 30 may have other numerical values or be fixed at other positions than those shown.
  • the inlay medium 50 is a high temperature resistant material, which may be a high temperature resistant plastic or ceramic.
  • the dual-polarization radiation unit further includes a reflector 60, and the balun structure 20 is connected to the reflector 60 and insulated from the reflector 60.
  • This design realizes the coupling and electrical connection between the balun structure 20 and the reflector 60, so that the reflector 60 serves as a ground signal layer and forms a feed signal loop with the balun structure 20, the folding vibrator 10 and the feed conductor 30.
  • the dual-polarization radiation unit also includes an insulating spacer 70 that fixes the balun structure 20 on the reflector 60.
  • the insulating spacer 70 includes a backing plate body 71 and a backing plate body 71 connected to A bump 72 extending downward, the insulating gasket 70 is provided with a through hole on the lower surface of the bump 72 upward to penetrate to the upper surface of the backing plate main body 71, and there are two through holes for the two feed conductors 30 to pass through; The feed conductor 30 passes through the through hole and is connected to the signal source to receive the signal.
  • the reflector 60 is provided with a fixing hole 61 penetrating upward and downward on its upper surface.
  • the reflector 60 is connected to the backing plate body 71 and the fixing hole 61 is sleeved into the bump 72.
  • the arrangement of the backing plate body 71 isolates the direct contact between the balun structure 20 and the reflecting plate 60, and the arrangement of the bump 72 isolates the direct contact between the reflecting plate 60 and the feeding conductor 30.
  • the insulating gasket 70 is fixedly connected with the balun structure 20, and the insulating gasket 70 is fixedly connected with the reflecting plate 60, so that the balun structure 20 and the reflecting plate 60 are fixedly connected in a non-contact manner.
  • the folding vibrator 10 and the balun structure 20 are integrally arranged.
  • the balun structure 20 and the folding vibrator 10 are integrally formed at one time, which reduces the number of parts and simplifies the assembly process.
  • the balun structure 20 and the folding vibrator 10 are made of a metal material or a metal-wrapped non-metal material.
  • the dual-polarization radiation unit includes a cable 90.
  • the cable 90 includes an inner conductor 91, a dielectric layer, an outer conductor 92, and a skin from the inside to the outside.
  • the inner conductor 91 is electrically connected to the feed conductor 30, and the outer conductor 92 It is electrically connected to the balun structure 20.
  • the specific implementation is as follows: the balun structure 20 is provided with an arc-shaped slot upward on its lower surface, the inner conductor 91 protrudes from the outer conductor 92 and passes through the arc-shaped slot to be connected to the feed conductor 30, and the outer conductor 92 is connected to the arc
  • the groove bottom or the outer surface of the balun structure 20 is connected. That is, the outer conductor 92 is directly welded to the balun structure 20. This design reduces parts and is beneficial to the miniaturization of the dual-polarized radiation unit.
  • the dual-polarized radiation unit includes a power feed base 82.
  • the inner conductor 91 protrudes from the outer conductor 92 and passes through the power feed base 82 and the feed conductor 30. Connected, the outer conductor 92 is connected to the power feeding base 82.
  • the feeding conductor 30 further includes a third feeding section 34, one end of the third feeding section 34 is coupled and crimped with the first feeding section 31, and the other end is electrically connected to the inner conductor 91.
  • the connection position of the third power feeding section 34 and the first power feeding section 31 is located in the communicating hole 21, and is fastened and insulated by a fixing member 81.
  • the other end of the third power feeding section 34 extends out of the communication hole 21 and is electrically connected to the inner conductor 91.
  • the feed base 82 is located at the connection, that is, the feed base 82 is provided with a through hole, the inner conductor 91 passes through the through hole and is welded to the third feed section 34, and the outer conductor 92 is welded to the feed base 82 .
  • the arrangement of the third power feeding section 34 transfers the welding operation to the area outside the balun structure 20 to facilitate the connection operation. Moreover, when the welding condition at the bottom of the balun structure 20 is not good, it is more difficult to directly weld the outer conductor to the balun structure 20. Therefore, this design helps to reduce the difficulty of connection.
  • this embodiment provides a base station antenna, which includes a plurality of dual-polarization radiating units 1, and the specific structure of the dual-polarization radiating unit 1 is referred to Embodiment 1. Since the base station antenna adopts all the technical solutions of the above-mentioned embodiment 1, it also has all the beneficial effects brought about by the technical solutions of the above-mentioned embodiment, which will not be repeated here.
  • a plurality of dual-polarized radiation units 1 are arranged in rows and columns.
  • the reflector 60 of each dual-polarized radiation unit 1 is integrally arranged.
  • the width of the base station antenna can be within 420mm.
  • the width can be within 380mm.

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Abstract

The technical solution is applicable to the technical field of radio, and provides a dual polarized radiating unit and a base station antenna. The dual polarized radiating unit comprises a folded dipole, a balun structure and two feed conductors. The folded dipole comprises four symmetrically disposed conductor rings which are arranged along the circumferential direction, and the symmetry axes of two adjacent conductor rings are perpendicularly arranged so as to form crossed symmetry axes. A first branch knot and a second branch knot extending to conductive centers of the symmetry axes are arranged on each conductor ring at the ends respectively facing the two adjacent conductor rings. The balun structure is provided with four intercommunicating pores running through from top to bottom, and any of the conductor rings has two connecting ends respectively connected to walls of two adjacent intercommunicating pores. The feed conductors are intersected with each other, one end of each feed conductor is inserted into one intercommunicating pore, and the other end is connected with the intercommunicating pore at an opposite angle. The dual polarized radiating unit provided by the present technical solution has a small volume and good radiation properties.

Description

双极化辐射单元和基站天线Dual polarization radiation unit and base station antenna 技术领域Technical field
本发明属于无线电领域，尤其涉及一种双极化辐射单元和基站天线。The invention belongs to the radio field, and particularly relates to a dual-polarization radiation unit and a base station antenna.
背景技术Background technique
天线作为无线通信***的咽喉要道，是辐射和接受电磁波的重要***部件。天线性能的优劣，对移动通信***的总体性能起着决定性的作用。随着移动通信***在容量和质量上的不断升级，人们对基站天线提出了越来越高的性能指标要求。Antenna, as the throat of the wireless communication system, is an important system component that radiates and receives electromagnetic waves. The performance of the antenna plays a decisive role in the overall performance of the mobile communication system. With the continuous upgrading of the capacity and quality of mobile communication systems, people have put forward higher and higher performance index requirements for base station antennas.
我国1G大哥大时代为简单语音通讯；2G增加短信业务；3G又增加了上网、多媒体、互联网业务，形成了以三种编码方式并存的三大运营商巨头；LTE-4G与4G极大地改善了网络覆盖、并有效地提升了***容量；为满足人们日益增长的通讯需求，pre-5G与未来5G致力于打造人人网——物物网——万物互联的格局，为客户提供最佳的体验感。The era of my country’s 1G big brother is simple voice communication; 2G adds SMS services; 3G adds Internet, multimedia, and Internet services, forming three major operators with three coding methods; LTE-4G and 4G have greatly improved Network coverage and effectively increase the system capacity; in order to meet people’s increasing communication needs, pre-5G and the future 5G are committed to building a network of people-things-everything interconnection, and provide customers with the best Sense of experience.
通讯***的每一次演进都对基站天线提出了新要求，多制式、多通道、小型化是当下基站选址困难的pre-5G时代对基站天线的基本要求。同时,用于网络覆盖的低频天线贯始终、并在各通讯时代都占据着重要地位，竞争亦越来越激烈，所以小型化、低成本、高性能的低频产品是各大基站天线厂家的研究热点。Each evolution of the communication system puts forward new requirements for base station antennas. Multi-standards, multi-channels, and miniaturization are the basic requirements for base station antennas in the pre-5G era where base station site selection is difficult. At the same time, low-frequency antennas used for network coverage have always been and occupy an important position in various communication eras, and competition is becoming more and more fierce. Therefore, small, low-cost, high-performance low-frequency products are the research of major base station antenna manufacturers. Hot spot.
现有低频基站天线的主要缺点在于，无法兼顾产品增益指标与外观尺寸，无法做到小尺寸化、轻量化，不利于降成本，在当前市场下无竞争优势。The main shortcomings of the existing low-frequency base station antennas are that they cannot balance the product gain index and the appearance size, and cannot achieve small size and light weight, which is not conducive to reducing costs, and has no competitive advantage in the current market.
技术问题technical problem
本发明的目的在于克服上述现有技术的不足，提供了一种双极化辐射单元和基站天线，其旨在确保双极化辐射单元辐射性能的同时降低尺寸。The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a dual-polarization radiating unit and a base station antenna, which aim to ensure the radiation performance of the dual-polarization radiating unit while reducing the size.
技术解决方案Technical solutions
本发明提供一种双极化辐射单元，包括折合振子、连接于所述折合振子的巴伦结构和用于对所述折合振子进行耦合馈电的馈电导体，The present invention provides a dual-polarization radiation unit, comprising a folding vibrator, a balun structure connected to the folding vibrator, and a feeding conductor for coupling and feeding the folding vibrator,
所述折合振子包括四个沿周向布置的导体环，各所述导体环对称设置，且相邻两个所述导体环的对称轴垂直设置，而相对的两个所述导体环的对称轴重叠，形成十字交叉对称轴，各所述导体环具有两个朝向所述十字交叉轴中心的连接端，并在背离所述十字交叉轴中心且分别朝向相邻的两个所述导体环的端部设有向所述十字交叉轴中心延伸的第一枝节和第二枝节；The folded vibrator includes four conductor rings arranged in the circumferential direction, each of the conductor rings is symmetrically arranged, and the symmetry axes of the two adjacent conductor rings are vertically arranged, and the symmetry axes of the two opposite conductor rings Overlap to form a crisscross symmetry axis, each of the conductor loops has two connecting ends facing the center of the crisscross axis, and at the ends facing away from the center of the crisscross axis and respectively facing the two adjacent conductor loops The section is provided with a first branch and a second branch extending to the center of the cross axis;
所述巴伦结构在其上表面开设有四个上下贯通的连通孔，四个所述连通孔分别位于所述十字交叉轴的四个象限内，任一所述导体环的两个所述连接端分别连接于相邻的两个所述连通孔的孔壁；The balun structure is provided with four communicating holes penetrating up and down on its upper surface, and the four communicating holes are respectively located in the four quadrants of the cross axis, and any two of the conductor rings are connected The ends are respectively connected to the hole walls of two adjacent communicating holes;
所述馈电导体有两个并交叉设置，各所述馈电导体一端***其中一连通孔，而其另一端连接对角的所述连通孔。There are two feed conductors and they are arranged crosswise, one end of each feed conductor is inserted into one of the communicating holes, and the other end is connected to the diagonal communicating hole.
进一步的，各所述导体环还包括顺次连接的第一辐射臂、第二辐射臂、第三辐射臂、第四辐射，以及分别与所述第一辐射臂、所述第二辐射臂、所述第三辐射臂、所述第四辐射臂对称设置的第五辐射臂、第六辐射臂、第七辐射臂和第八辐射臂，所述第四辐射臂连接于第八辐射臂；Further, each of the conductor loops further includes a first radiating arm, a second radiating arm, a third radiating arm, and a fourth radiating arm that are sequentially connected, and are connected to the first radiating arm, the second radiating arm, and the The fifth, sixth, seventh, and eighth radiating arms are symmetrically arranged on the third radiating arm and the fourth radiating arm, and the fourth radiating arm is connected to the eighth radiating arm;
其中，两个所述连接端分别设置在所述第一辐射臂和所述第二辐射臂上，所述第一枝节连接于所述第三辐射臂朝向所述第一十字交叉轴中心的端部，所述第二枝节连接于所述第七辐射臂朝向所述第一十字交叉轴中心的端部；Wherein, the two connecting ends are respectively arranged on the first radiating arm and the second radiating arm, and the first branch is connected to the third radiating arm facing the center of the first cross axis At the end, the second branch is connected to the end of the seventh radiating arm facing the center of the first cross axis;
所述第二辐射臂和所述第六辐射臂的截面形状沿延伸方向变化设置。The cross-sectional shapes of the second radiating arm and the sixth radiating arm are changed along the extension direction.
进一步的，所述第一辐射臂和所述第五辐射臂的截面形状沿延伸方向变化设置Further, the cross-sectional shapes of the first radiating arm and the fifth radiating arm are changed along the extension direction.
进一步的，所述第一辐射臂、所述第二辐射臂和/或第一枝节在其下表面设有加强筋。Further, the first radiating arm, the second radiating arm and/or the first branch are provided with reinforcing ribs on the lower surface thereof.
进一步的，所述双极化辐射单元还包括多个绝缘材料制成的介质卡扣，任一所述折合振子的所述第一辐射臂和所述第五辐射臂留有空隙并由所述介质卡扣扣合连接，所述折合振子的第三辐射臂和相邻的所述折合振子的第七辐射臂留有空隙并由所述介质卡扣扣合连接。Further, the dual-polarization radiation unit further includes a plurality of dielectric buckles made of insulating materials, and the first radiating arm and the fifth radiating arm of any one of the folded vibrators have a gap and are The medium snap-fit connection, the third radiating arm of the folded vibrator and the adjacent seventh radiating arm of the folded vibrator leave a gap and are connected by the medium snap-fit.
进一步的，所述双极化辐射单元还包括套设在所述馈电导体上并位于所述连通孔内的镶嵌介质，所述镶嵌介质由绝缘材料制成并用于限定所述馈电导体相对所述连通孔运动。Further, the dual-polarization radiation unit further includes an inlay medium sleeved on the feeding conductor and located in the communicating hole, and the inlay medium is made of insulating material and is used to define the opposite of the feeding conductor. The communication hole moves.
进一步的，所述双极化辐射单元还包括反射板，所述巴伦结构与所述反射板连接并与所述反射板绝缘设置。Further, the dual-polarization radiation unit further includes a reflector, and the balun structure is connected to the reflector and insulated from the reflector.
进一步的，所述双极化辐射单元还包括将所述巴伦结构固定在所述反射板上的绝缘垫片，所述绝缘垫片包括垫板主体和连接于所述垫板主体并向下延伸的凸块，所述绝缘垫片在所述凸块的下表面向上开设有贯通至所述垫板主体上表面的贯通孔，所述贯通孔有两个并分别供两个所述馈电导体穿过；Further, the dual-polarization radiation unit further includes an insulating gasket for fixing the balun structure on the reflector, and the insulating gasket includes a backing plate main body and a backing plate body connected to the backing plate main body and downward Extending bumps, the insulating gasket is provided with a through hole on the lower surface of the bump upward, which penetrates to the upper surface of the backing plate main body, and there are two through holes for each of the two feeding conductors Body through
所述反射板在其上表面向下开设有上下贯通的固定孔，所述反射板连接于所述垫板主体且其所述固定孔套入所述凸块。The reflecting plate is provided with fixing holes penetrating up and down on the upper surface thereof, the reflecting plate is connected to the main body of the backing plate, and the fixing holes of the reflecting plate are sleeved into the bumps.
进一步的，所述双极化辐射单元还包括电缆，所述电缆从内到外包括内层导体、介质层、外部导体和表皮，所述内层导体与所述馈电导体电连接，所述外部导体与所述巴伦结构电连接。Further, the dual-polarization radiation unit further includes a cable that includes an inner conductor, a dielectric layer, an outer conductor, and a skin from the inside to the outside, the inner conductor is electrically connected to the feed conductor, and the The outer conductor is electrically connected to the balun structure.
本发明还提供一种基站天线，包括如上述的双极化辐射单元，所述双极化辐射单元有多个，且呈行列布置。The present invention also provides a base station antenna, which includes the above-mentioned dual-polarization radiation unit, and the dual-polarization radiation unit is arranged in rows and columns.
有益效果Beneficial effect
本发明提供的双极化辐射单元，具有698MHz～960MHz的带宽，结构简单、适合批量生产，体积小，符合天线小型化的需求，而且具有收敛性波宽、高增益、高FBR等优良的辐射性能。The dual-polarization radiation unit provided by the present invention has a bandwidth of 698MHz to 960MHz, has a simple structure, is suitable for mass production, has a small size, meets the needs of antenna miniaturization, and has excellent radiation such as convergent wave width, high gain, high FBR, etc. performance.
附图说明Description of the drawings
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to explain the technical solutions in the embodiments of the present invention more clearly, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on these drawings.
图1是本发明实施例一的双极化辐射单元的整体示意图；FIG. 1 is an overall schematic diagram of a dual-polarization radiation unit according to Embodiment 1 of the present invention;
图2是本发明实施例一的双极化辐射单元的侧视图；Fig. 2 is a side view of the dual-polarization radiation unit according to the first embodiment of the present invention;
图3是本发明实施例一的双极化辐射单元的立体图，其中，反射板不可见；Fig. 3 is a perspective view of a dual-polarization radiation unit according to the first embodiment of the present invention, in which the reflector is not visible;
图4是本发明实施例一的双极化辐射单元的另一角度的立体图，其中，反射板不可见；4 is another perspective view of the dual-polarized radiation unit according to the first embodiment of the present invention, in which the reflector is not visible;
图5是本发明实施例一中折合振子和馈电导体的俯视图；Figure 5 is a top view of the folded vibrator and the feed conductor in the first embodiment of the present invention;
图6是本发明实施例一中馈电导体与电缆的一种连接示意图；Figure 6 is a schematic diagram of a connection between a feed conductor and a cable in the first embodiment of the present invention;
图7是图6中结构的侧视图；Figure 7 is a side view of the structure in Figure 6;
图8是本发明实施例一中馈电导体与电缆的另一种连接示意图；Fig. 8 is another schematic diagram of the connection between the feed conductor and the cable in the first embodiment of the present invention;
图9是本发明实施例二的基站天线示意图。Fig. 9 is a schematic diagram of a base station antenna according to the second embodiment of the present invention.
附图标号说明：Description with icon number:
标号 Label 名称 Name 标号 Label 名称 Name
S1 S1 十字坐标轴 Cross axis 30 30 馈电导体 Feeder conductor
10 10 折合振子 Reduced vibrator 30A 30A 第一导体 First conductor
10A 10A 第一振子 First vibrator 30B 30B 第二导体 Second conductor
10B 10B 第二振子 Second vibrator 31 31 第一馈电段 First feed section
10C 10C 第三振子 Third vibrator 32 32 连接段 Connection segment
10D 10D 第四振子 Fourth vibrator 33 33 第二馈电段 Second feed section
111 111 第一辐射臂 First radiating arm 34 34 第三馈电段 The third feed section
121 121 第二辐射臂 Second radiating arm 40 40 介质卡扣 Media snap
131 131 第三辐射臂 Third radiating arm 50 50 镶嵌介质 Mounting medium
141 141 第四辐射臂 Fourth radiation arm 60 60 反射板 Reflective plate
151 151 第一枝节 First branch 61 61 固定孔 Fixing hole
112 112 第五辐射臂 Fifth radiating arm 70 70 绝缘垫片 Insulating gasket
122 122 第六辐射臂 Sixth radiating arm 71 71 垫板主体 Pad body
132 132 第七辐射臂 Seventh radiation arm 72 72 凸块 Bump
142 142 第八辐射臂 Eighth radiating arm 81 81 固定件 Fastener
152 152 第二枝节 Second branch 82 82 馈电座 Feeder seat
16 16 加强筋 Stiffener 90 90 电缆 Cable
20 20 巴伦结构 Balun structure 91 91 内层导体 Inner conductor
21 twenty one 连通孔 Connecting hole 92 92 外层导体 Outer conductor
21A 21A 第一通孔 First through hole   To   To
21B 21B 第二通孔 Second through hole   To   To
21C 21C 第三通孔 Third through hole   To   To
21D 21D 第四通孔 Fourth through hole   To   To
1 1 双极化辐射单元 Dual polarization radiation unit   To   To
  To   To   To   To
本发明的实施方式Embodiments of the invention
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者间接在该另一个元件上。当一个元件被称为是“连接于”另一个元件，它可以是直接连接到另一个元件或间接连接至该另一个元件上。It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more than two, unless specifically defined otherwise.
还需要说明的是，本发明实施例中，按照图1中所建立的XYZ直角坐标系定义：位于X轴正方向的一侧定义为右方，位于X轴负方向的一侧定义为左方；位于Y轴正方向的一侧定义为前方，位于Y轴负方向的一侧定义为后方；位于Z轴正方向的一侧定义为上方，位于Z轴负方向的一侧定义为下方。It should also be noted that, in the embodiment of the present invention, according to the definition of the XYZ rectangular coordinate system established in Figure 1, the side in the positive direction of the X-axis is defined as the right, and the side in the negative direction of the X-axis is defined as the left ; The side in the positive direction of the Y-axis is defined as the front, and the side in the negative direction of the Y-axis is defined as the back; the side in the positive direction of the Z-axis is defined as above, and the side in the negative direction of the Z-axis is defined as below.
还需要说明的是，本发明实施例中的左、右、上和下等方位用语，仅是互为相对概念或是以产品的正常使用状态为参考的，而不应该认为是具有限制性的。It should also be noted that the terms left, right, up and down in the embodiments of the present invention are only relative concepts or refer to the normal use of the product, and should not be considered restrictive. .
实施例一Example one
请参照图1至图8，本实施例提供一种双极化辐射单元，包括折合振子10、连接于折合振子10的巴伦结构20和用于对折合振子10进行耦合馈电的馈电导体30。1-8, this embodiment provides a dual-polarization radiation unit, including a folding vibrator 10, a balun structure 20 connected to the folding vibrator 10, and a feeding conductor for coupling and feeding the folding vibrator 10 30.
折合振子10包括四个导体环，四个导体环沿周向布置。各导体环对称设置，且相邻两个导体环的对称轴垂直设置，而相对的两个导体环的对称轴重叠，形成十字坐标轴S1，各导体环具有两个朝向十字坐标轴S1的中心的连接端，并在背离十字坐标轴S1的中心且分别朝向相邻的两个导体环的端部设有向十字坐标轴S1的中心延伸的第一枝节151和第二枝节152。The folded vibrator 10 includes four conductor loops, and the four conductor loops are arranged in the circumferential direction. The conductor rings are arranged symmetrically, and the symmetry axes of two adjacent conductor rings are arranged vertically, and the symmetry axes of the two opposite conductor rings overlap to form a cross coordinate axis S1, and each conductor ring has two centers facing the cross coordinate axis S1 A first stub 151 and a second stub 152 extending toward the center of the cross coordinate axis S1 are provided at the ends facing away from the center of the cross coordinate axis S1 and respectively toward the two adjacent conductor loops.
为便于描述，将四个导体环按逆时针方向依次命名为第一振子10A、第二振子10B、第三振子10C和第四振子10D，第一振子10A的右边和第四振子10D的左边位于十字坐标轴S1的第一象限，第一振子10A的左边和第二振子10B的右边位于十字坐标轴S1的第二象限，第二振子10B的左边和第三振子10C的右边位于十字坐标轴S1的第三象限，第三振子10C的左边和第四振子10D的右边位于十字坐标轴S1的第四象限。For ease of description, the four conductor loops are named the first vibrator 10A, the second vibrator 10B, the third vibrator 10C, and the fourth vibrator 10D in the counterclockwise direction, the right side of the first vibrator 10A and the left side of the fourth vibrator 10D. Located in the first quadrant of the cross-coordinate axis S1, the left side of the first vibrator 10A and the right side of the second vibrator 10B are in the second quadrant of the cross-coordinate axis S1, the left side of the second vibrator 10B and the right side of the third vibrator 10C are in the cross coordinate The third quadrant of the axis S1, the left side of the third vibrator 10C and the right side of the fourth vibrator 10D are located in the fourth quadrant of the cross coordinate axis S1.
第一枝节151和第二枝节152的设置延伸了电流路径，有效改善辐射单元的阻抗带宽特性并在工作带宽下有效减小辐射单元的尺寸。The arrangement of the first branch 151 and the second branch 152 extends the current path, effectively improving the impedance bandwidth characteristics of the radiation unit and effectively reducing the size of the radiation unit under the working bandwidth.
巴伦结构20在其上表面开设有四个上下贯通的连通孔21，四个连通孔21分别位于十字交叉轴S1的四个象限内，任一导体环的两个连接端分别连接于两个相邻的连通孔21的孔壁。The upper surface of the balun structure 20 is provided with four communicating holes 21 that penetrate up and down. The four communicating holes 21 are respectively located in the four quadrants of the cross axis S1. The two connecting ends of any conductor ring are respectively connected to two The hole wall of the adjacent communicating hole 21.
为便于描述，将四个连通孔21按逆时针方向命名为第一通孔21A、第二通孔21B、第三通孔21C和第四通孔21D，第一通孔21A位于十字坐标轴S1的第二象限，第二通孔21B位于十字坐标轴S1的第三象限，第三通孔21C位于十字坐标轴S1的第四象限，第四通孔21D位于十字坐标轴S1的第一象限。For ease of description, the four communicating holes 21 are named the first through hole 21A, the second through hole 21B, the third through hole 21C, and the fourth through hole 21D in the counterclockwise direction. The first through hole 21A is located on the cross coordinate axis S1. The second through hole 21B is located in the third quadrant of the cross coordinate axis S1, the third through hole 21C is located in the fourth quadrant of the cross coordinate axis S1, and the fourth through hole 21D is located in the first quadrant of the cross coordinate axis S1.
馈电导体30有两个并交叉设置，任一馈电导体30一端***其中一连通孔21而另一端***对角的连通孔21或连接于对角的连通孔21，从而对位于十字坐标轴S1对角的两个象限的折合振子10进行耦合馈电。There are two feed conductors 30 and are arranged crosswise. One end of any feed conductor 30 is inserted into one of the communicating holes 21 and the other end is inserted into the diagonal communicating hole 21 or connected to the diagonal communicating hole 21, so as to lie on the cross axis. S1 is coupled to feed the reduced oscillators 10 in the two quadrants of the corner.
本图示实施例中，各馈电导体30两端分别***对角的两个连通孔21中。两个馈电导体30分别命名为第一导体30A和第二导体30B，第一导体30A穿过第一通孔21A和第三通孔21C分别给折合振子10中位于第二象限和第四象限的部分馈电，第二导体30B穿过第二通孔21B和第四通孔21D分别给折合振子10中位于第一象限和第三象限的部分馈电。In the illustrated embodiment, both ends of each feed conductor 30 are inserted into two diagonal communication holes 21 respectively. The two feed conductors 30 are respectively named a first conductor 30A and a second conductor 30B. The first conductor 30A passes through the first through hole 21A and the third through hole 21C, respectively, to be located in the second quadrant and the fourth quadrant of the folding vibrator 10 The second conductor 30B passes through the second through hole 21B and the fourth through hole 21D to respectively feed the parts of the folded vibrator 10 located in the first quadrant and the third quadrant.
本实施例提供的双极化辐射单元，具有698MHz～960MHz的带宽，结构简单、适合批量生产，体积小，符合天线小型化的需求，而且具有收敛性波宽、高增益、高FBR等优良的辐射性能。The dual-polarization radiation unit provided in this embodiment has a bandwidth of 698MHz to 960MHz, has a simple structure, is suitable for mass production, has a small size, meets the needs of miniaturization of antennas, and has excellent convergent bandwidth, high gain, high FBR, etc. Radiation performance.
请参照图5，各导体环还包括顺次连接的第一辐射臂111、第二辐射臂121、第三辐射臂131、第四辐射臂141，以及分别与第一辐射臂111、第二辐射臂121、第三辐射臂131、第四辐射臂141对称设置的第五辐射臂112、第六辐射臂122、第七辐射臂132和第八辐射臂142，第四辐射臂141连接于第八辐射臂142。5, each conductor ring also includes a first radiating arm 111, a second radiating arm 121, a third radiating arm 131, and a fourth radiating arm 141 that are connected in sequence, and are connected to the first radiating arm 111 and the second radiating arm respectively. The fifth radiating arm 112, the sixth radiating arm 122, the seventh radiating arm 132 and the eighth radiating arm 142 are symmetrically arranged on the arm 121, the third radiating arm 131, and the fourth radiating arm 141. The fourth radiating arm 141 is connected to the eighth Radiant arm 142.
其中，两个连接端分别设置在第一辐射臂111和第二辐射臂121上，第一枝节151连接于第三辐射臂131朝向十字坐标轴S1的中心的端部，第二枝节152连接于第七辐射臂132朝向十字坐标轴S1的中心的端部。The two connecting ends are respectively arranged on the first radiating arm 111 and the second radiating arm 121, the first branch 151 is connected to the end of the third radiating arm 131 facing the center of the cross coordinate axis S1, and the second branch 152 is connected At the end of the seventh radiating arm 132 facing the center of the cross coordinate axis S1.
图示实施例中，第四辐射臂141和第八辐射臂142位于同一圆周上，四个导体环整体外轮廓为圆形。在其它实施例中，第四辐射臂141和第八辐射臂142连线，可呈四方形、正八边形或正四角形。In the illustrated embodiment, the fourth radiating arm 141 and the eighth radiating arm 142 are located on the same circumference, and the overall outer contours of the four conductor rings are circular. In other embodiments, the fourth radiating arm 141 and the eighth radiating arm 142 are connected to each other, and may have a square shape, a regular octagonal shape, or a regular quadrangular shape.
各辐射臂的设置使导体环内部形成镂空结构，导体环之间也形成镂空结构。该设计实现双极化辐射单元的小型化和轻量化。The arrangement of each radiating arm makes a hollow structure formed inside the conductor ring, and a hollow structure is also formed between the conductor rings. This design realizes the miniaturization and light weight of the dual-polarization radiation unit.
第二辐射臂121和第六辐射臂122的截面形状沿延伸方向变化设置。即，第二辐射臂121和第六辐射臂122均为不规则形状，该设计相比于等截面杆的设计有利于获得更加优秀的阻抗匹配。图示实施例中，第二辐射臂121和第六辐射臂122对称设置，均由两个弧心相同的弧形杆和一个径向连接于两个弧形杆的连接件连接而成，两个弧形杆的弧线直径不同，径向截面尺寸不同。在其它实施例中，第二辐射臂121和第六辐射臂122分别由多个不同截面尺寸的直杆连接形成，也可以是其它形式，本方案不唯一指定。The cross-sectional shapes of the second radiating arm 121 and the sixth radiating arm 122 are changed along the extension direction. That is, the second radiating arm 121 and the sixth radiating arm 122 are both irregular in shape, and this design is beneficial to obtain better impedance matching compared to the design of a constant cross-section rod. In the illustrated embodiment, the second radiating arm 121 and the sixth radiating arm 122 are symmetrically arranged, and both are formed by connecting two arc-shaped rods with the same arc center and a connecting piece radially connected to the two arc-shaped rods. The arc diameters of the arc-shaped rods are different, and the radial cross-sectional dimensions are different. In other embodiments, the second radiating arm 121 and the sixth radiating arm 122 are respectively formed by connecting a plurality of straight rods with different cross-sectional sizes, and may also be in other forms, and this solution is not uniquely specified.
第一辐射臂111和第五辐射臂112的截面形状沿延伸方向变化设置。即第一辐射臂111和第五辐射臂112亦为变截面杆。该设计可改善双极化辐射单元的阻抗带宽性能。本图示实施例中，第一辐射臂111和第二辐射臂121对称设置，第三辐射臂131和第四辐射臂141对称设置，第一辐射臂111和第三辐射臂131结构不同。The cross-sectional shapes of the first radiating arm 111 and the fifth radiating arm 112 are changed along the extending direction. That is, the first radiating arm 111 and the fifth radiating arm 112 are also variable cross-section rods. This design can improve the impedance bandwidth performance of the dual-polarized radiation unit. In the illustrated embodiment, the first radiating arm 111 and the second radiating arm 121 are symmetrically arranged, the third radiating arm 131 and the fourth radiating arm 141 are symmetrically arranged, and the first radiating arm 111 and the third radiating arm 131 are different in structure.
请参照图4，第一辐射臂111、第二辐射臂121和/或第一枝节151在其下表面设有加强筋16。第一辐射臂111和第五辐射臂112、第二辐射臂121和第六辐射臂122、第一枝节151和第二枝节152为三对辐射对，加强筋16设置在三对辐射对中任意一对、任意两对或全部辐射对上。在获取良好电气性能的同时实现辐射单元的轻量化设计。图示实施例中，加强筋16位于第一辐射臂111、第二辐射臂121、第一枝节151、第五辐射臂112、第六辐射臂122和第二枝节152下表面的边缘位置，在其它实施例中，加强筋16也可以位于加强筋16位于第一辐射臂111、第二辐射臂121、第一枝节151、第五辐射臂112、第六辐射臂122和第二枝节152的下表面的中间或其它位置。4, the first radiating arm 111, the second radiating arm 121 and/or the first branch 151 are provided with reinforcing ribs 16 on the lower surface thereof. The first radiating arm 111 and the fifth radiating arm 112, the second radiating arm 121 and the sixth radiating arm 122, the first stub 151 and the second stub 152 are three pairs of radiating pairs, and the reinforcing ribs 16 are arranged in the three pairs of radiating pairs Any pair, any two pairs or all radiation pairs. Realize the lightweight design of the radiation unit while obtaining good electrical performance. In the illustrated embodiment, the reinforcing ribs 16 are located at the edge positions of the lower surfaces of the first radiating arm 111, the second radiating arm 121, the first branch 151, the fifth radiating arm 112, the sixth radiating arm 122 and the second branch 152, In other embodiments, the reinforcing rib 16 may also be located at the first radiating arm 111, the second radiating arm 121, the first branch 151, the fifth radiating arm 112, the sixth radiating arm 122, and the second branch 152. The middle of the lower surface or other locations.
请参照图2或图3，双极化辐射单元还包括多个绝缘材料制成的介质卡扣40，任一折合振子10的第一辐射臂111和第五辐射臂112留有空隙并由介质卡扣40扣合连接，折合振子10的第三辐射臂131和相邻的折合振子10的第七辐射臂132留有空隙并由介质卡扣40扣合连接。该设计兼顾电气性能的同时，有效提高四个导体环的结构强度。图示实施例中，介质卡扣40有八个，四个分别用于扣合各导体环的第一辐射臂111和第五辐射臂112，四个分别用于扣合相邻两个折合振子10的第三辐射臂131和第七辐射臂132。在其它实施例中，介质卡扣40不限于本图示实施例的位置和数量。2 or 3, the dual-polarization radiation unit also includes a plurality of dielectric buckles 40 made of insulating materials, any of the first radiating arm 111 and the fifth radiating arm 112 of the folded vibrator 10 is left with a gap and is made of dielectric The buckle 40 is buckled and connected. The third radiating arm 131 of the folded vibrator 10 and the seventh radiating arm 132 of the adjacent foldable vibrator 10 have a gap and are buckled and connected by the dielectric buckle 40. This design takes into account the electrical performance and effectively improves the structural strength of the four conductor loops. In the illustrated embodiment, there are eight dielectric buckles 40, four are used to buckle the first radiating arm 111 and the fifth radiating arm 112 of each conductor ring respectively, and the four are respectively used to buckle two adjacent folding vibrators 10 of the third radiation arm 131 and the seventh radiation arm 132. In other embodiments, the media buckle 40 is not limited to the position and number of the illustrated embodiment.
优选的，介质卡扣40为耐高温材料，以避免介质卡扣40在高温下融化。介质卡扣40可为耐高温塑料或陶瓷。Preferably, the media buckle 40 is made of a high temperature resistant material to prevent the media buckle 40 from melting at high temperatures. The media buckle 40 can be made of high temperature resistant plastic or ceramic.
请参照图6，馈电导体30包括顺次连接的第一馈电段31、连接段32和第二馈电段33，第一馈电段31和第二馈电段33分别用于将信号馈电给折合振子10，连接段32用于将从第一馈电段31输出的信号传递至第二馈电段33。第一馈电段31位于一个连通孔21内，第二馈电段33位于对角的连通孔21内。即，第一导体30A的第一馈电段31位于第一通孔21A内并用于给第一振子10A的左边和第二振子10B的右边馈电，第一导体30A的第二馈电段33位于第三通孔21C内并用于给第三振子10C的左边和第四振子10D的右边馈电；第二导体30B的第一馈电段31位于第四通孔21D内并用于给第四振子10D的左边和第一振子10A的右边馈电，第二导体30B的第二馈电段33位于第二通孔21B内并用于给第二振子10B的左边和第三振子10C的右边馈电。第一导体30A的连接段32和第二导体30B的连接段32上下交错设置。Please refer to FIG. 6, the feeding conductor 30 includes a first feeding section 31, a connecting section 32, and a second feeding section 33 that are sequentially connected. The first feeding section 31 and the second feeding section 33 are respectively used for signal The power is fed to the folding vibrator 10, and the connecting section 32 is used to transfer the signal output from the first power feeding section 31 to the second power feeding section 33. The first power feeding section 31 is located in a communicating hole 21, and the second power feeding section 33 is located in a diagonal communicating hole 21. That is, the first feed section 31 of the first conductor 30A is located in the first through hole 21A and is used to feed the left side of the first vibrator 10A and the right side of the second vibrator 10B, and the second feed section 33 of the first conductor 30A Located in the third through hole 21C and used to feed the left side of the third vibrator 10C and the right side of the fourth vibrator 10D; the first feeding section 31 of the second conductor 30B is located in the fourth through hole 21D and used to feed the fourth The left side of the vibrator 10D and the right side of the first vibrator 10A are fed, and the second feed section 33 of the second conductor 30B is located in the second through hole 21B and is used to feed the left side of the second vibrator 10B and the right side of the third vibrator 10C Electricity. The connecting sections 32 of the first conductor 30A and the connecting sections 32 of the second conductor 30B are staggered up and down.
双极化辐射单元还包括套设在馈电导体30上并位于连通孔21内的镶嵌介质50，镶嵌介质50由绝缘材料制成并用于限定馈电导体30相对连通孔21运动。该设计在兼顾电气性能的同时，有效的提高了馈电导体30的结构可靠性。镶嵌介质50有多个，图示实施例中，镶嵌介质50有六个，对称固定在两个馈电导体30上。第一馈电段31连接有两个镶嵌介质50，从而将两个馈电导体30的第一馈电段31分别固定在第一通孔21A和第四通孔21D上，第二馈电段33连接有一个镶嵌介质50，从而将两个馈电导体30的第二馈电段33分别固定在第三通孔21C和第二通孔21B上。在其它实施例中，馈电导体30可为其它数量值或固定在图示位置以外的其它位置。The dual-polarization radiation unit further includes an inlay medium 50 sleeved on the feeding conductor 30 and located in the communication hole 21. The inlay medium 50 is made of insulating material and is used to limit the movement of the feeding conductor 30 relative to the communication hole 21. This design not only takes into account the electrical performance, but also effectively improves the structural reliability of the feed conductor 30. There are multiple inlay dielectrics 50. In the illustrated embodiment, there are six inlay dielectrics 50, which are symmetrically fixed on two feed conductors 30. The first feeding section 31 is connected with two inlay dielectrics 50, so that the first feeding section 31 of the two feeding conductors 30 is fixed on the first through hole 21A and the fourth through hole 21D, respectively, and the second feeding section A damascene medium 50 is connected to 33, so that the second feeding sections 33 of the two feeding conductors 30 are fixed on the third through hole 21C and the second through hole 21B, respectively. In other embodiments, the feeding conductor 30 may have other numerical values or be fixed at other positions than those shown.
优选的，镶嵌介质50为耐高温材料，可为耐高温塑料或陶瓷。Preferably, the inlay medium 50 is a high temperature resistant material, which may be a high temperature resistant plastic or ceramic.
请参照图1或图2，双极化辐射单元还包括反射板60，巴伦结构20与反射板60连接并与反射板60绝缘设置。该设计实现巴伦结构20和反射板60的耦合电气连接，从而使得反射板60作为地信号层，并与巴伦结构20、折合振子10和馈电导体30形成馈电信号回路。Please refer to FIG. 1 or FIG. 2, the dual-polarization radiation unit further includes a reflector 60, and the balun structure 20 is connected to the reflector 60 and insulated from the reflector 60. This design realizes the coupling and electrical connection between the balun structure 20 and the reflector 60, so that the reflector 60 serves as a ground signal layer and forms a feed signal loop with the balun structure 20, the folding vibrator 10 and the feed conductor 30.
请参照图2和图4，双极化辐射单元还包括将巴伦结构20固定在反射板60上的绝缘垫片70，绝缘垫片70包括垫板主体71和连接于垫板主体71并向下延伸的凸块72，绝缘垫片70在凸块72的下表面向上开设有贯通至垫板主体71上表面的贯通孔，贯通孔有两个并分别供两个馈电导体30穿过；馈电导体30穿过贯通孔而与信号源连接以接收信号。2 and 4, the dual-polarization radiation unit also includes an insulating spacer 70 that fixes the balun structure 20 on the reflector 60. The insulating spacer 70 includes a backing plate body 71 and a backing plate body 71 connected to A bump 72 extending downward, the insulating gasket 70 is provided with a through hole on the lower surface of the bump 72 upward to penetrate to the upper surface of the backing plate main body 71, and there are two through holes for the two feed conductors 30 to pass through; The feed conductor 30 passes through the through hole and is connected to the signal source to receive the signal.
反射板60在其上表面向下开设有上下贯通的固定孔61，反射板60连接于垫板主体71且其固定孔61套入凸块72。The reflector 60 is provided with a fixing hole 61 penetrating upward and downward on its upper surface. The reflector 60 is connected to the backing plate body 71 and the fixing hole 61 is sleeved into the bump 72.
垫板主体71的设置隔绝了巴伦结构20和反射板60的直接接触，凸块72的设置隔绝了反射板60与馈电导体30的直接接触。同时，绝缘垫片70与巴伦结构20固定连接，绝缘垫片70与反射板60固定连接，从而使巴伦结构20和反射板60非接触性固定连接。The arrangement of the backing plate body 71 isolates the direct contact between the balun structure 20 and the reflecting plate 60, and the arrangement of the bump 72 isolates the direct contact between the reflecting plate 60 and the feeding conductor 30. At the same time, the insulating gasket 70 is fixedly connected with the balun structure 20, and the insulating gasket 70 is fixedly connected with the reflecting plate 60, so that the balun structure 20 and the reflecting plate 60 are fixedly connected in a non-contact manner.
本实施例中，折合振子10和巴伦结构20一体设置。巴伦结构20和折合振子10一次性整体成型，减少了零件数量，简化装配流程。In this embodiment, the folding vibrator 10 and the balun structure 20 are integrally arranged. The balun structure 20 and the folding vibrator 10 are integrally formed at one time, which reduces the number of parts and simplifies the assembly process.
巴伦结构20和折合振子10为金属材料或金属包裹的非金属材料制成。The balun structure 20 and the folding vibrator 10 are made of a metal material or a metal-wrapped non-metal material.
请参照图8，双极化辐射单元包括电缆90，电缆90从内到外包括内层导体91、介质层、外部导体92和表皮，内层导体91与馈电导体30电连接，外部导体92与巴伦结构20电连接。具体实现方式如下：巴伦结构20在其下表面向上开设有弧形槽，内层导体91突出于外层导体92并穿过弧形槽与馈电导体30连接，外层导体92与弧形槽槽底或巴伦结构20的外表面连接。即，外部导体92直接焊接在巴伦结构20上，该设计减少零件，有利于双极化辐射单元小型化。8, the dual-polarization radiation unit includes a cable 90. The cable 90 includes an inner conductor 91, a dielectric layer, an outer conductor 92, and a skin from the inside to the outside. The inner conductor 91 is electrically connected to the feed conductor 30, and the outer conductor 92 It is electrically connected to the balun structure 20. The specific implementation is as follows: the balun structure 20 is provided with an arc-shaped slot upward on its lower surface, the inner conductor 91 protrudes from the outer conductor 92 and passes through the arc-shaped slot to be connected to the feed conductor 30, and the outer conductor 92 is connected to the arc The groove bottom or the outer surface of the balun structure 20 is connected. That is, the outer conductor 92 is directly welded to the balun structure 20. This design reduces parts and is beneficial to the miniaturization of the dual-polarized radiation unit.
在另外的实施例中，请一并参照图6和图7，双极化辐射单元包括馈电座82，内层导体91突出于外部导体92并穿过馈电座82与馈电导体30电连接，外部导体92与馈电座82连接。图示实施例中，馈电导体30还包括第三馈电段34，第三馈电段34一端与第一馈电段31耦合压接，而另一端与内层导体91电连接。第三馈电段34与第一馈电段31的连接位置位于连通孔21内，并采用固定件81紧固、绝缘。第三馈电段34另一端伸出连通孔21并与内层导体91电连接。馈电座82位于该连接处，即，馈电座82设有供一贯穿孔，内层导体91穿过该贯穿孔与第三馈电段34焊接，而其外部导体92与馈电座82焊接。第三馈电段34的设置将焊接操作转移至巴伦结构20以外区域，便于连接操作。且当巴伦结构20底部的焊接条件不佳时，外层导体直接焊接在巴伦结构20的焊接难度较大，因此，该设计有助于降低连接难度。In another embodiment, please refer to FIGS. 6 and 7 together. The dual-polarized radiation unit includes a power feed base 82. The inner conductor 91 protrudes from the outer conductor 92 and passes through the power feed base 82 and the feed conductor 30. Connected, the outer conductor 92 is connected to the power feeding base 82. In the illustrated embodiment, the feeding conductor 30 further includes a third feeding section 34, one end of the third feeding section 34 is coupled and crimped with the first feeding section 31, and the other end is electrically connected to the inner conductor 91. The connection position of the third power feeding section 34 and the first power feeding section 31 is located in the communicating hole 21, and is fastened and insulated by a fixing member 81. The other end of the third power feeding section 34 extends out of the communication hole 21 and is electrically connected to the inner conductor 91. The feed base 82 is located at the connection, that is, the feed base 82 is provided with a through hole, the inner conductor 91 passes through the through hole and is welded to the third feed section 34, and the outer conductor 92 is welded to the feed base 82 . The arrangement of the third power feeding section 34 transfers the welding operation to the area outside the balun structure 20 to facilitate the connection operation. Moreover, when the welding condition at the bottom of the balun structure 20 is not good, it is more difficult to directly weld the outer conductor to the balun structure 20. Therefore, this design helps to reduce the difficulty of connection.
实施例二Example two
请参照图9，本实施例提供一种基站天线，包括多个双极化辐射单元1，双极化辐射单元1的具体结构参照实施例一。由于本基站天线采用了上述实施例一的全部技术方案，因此同样具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。Please refer to FIG. 9, this embodiment provides a base station antenna, which includes a plurality of dual-polarization radiating units 1, and the specific structure of the dual-polarization radiating unit 1 is referred to Embodiment 1. Since the base station antenna adopts all the technical solutions of the above-mentioned embodiment 1, it also has all the beneficial effects brought about by the technical solutions of the above-mentioned embodiment, which will not be repeated here.
请再次参照图9，多个双极化辐射单元1呈行列布置。图示实施例中，双极化辐射单元1有十个，并呈两行五列排布。各双极化辐射单元1的反射板60一体设置。在698MHz～960MHz的工作带宽下，该基站天线的宽度可以做到420mm以内。在790MHz～960MHz的工作带宽下，宽度可以做到380mm以内。Please refer to FIG. 9 again, a plurality of dual-polarized radiation units 1 are arranged in rows and columns. In the illustrated embodiment, there are ten dual-polarized radiation units 1, which are arranged in two rows and five columns. The reflector 60 of each dual-polarized radiation unit 1 is integrally arranged. Under the working bandwidth of 698MHz～960MHz, the width of the base station antenna can be within 420mm. Under the working bandwidth of 790MHz～960MHz, the width can be within 380mm.
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换或改进等，均应包含在本发明的保护范围之内。The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection of the present invention. Within range.

Claims (10)

  1. 一种双极化辐射单元，其特征在于，包括折合振子、连接于所述折合振子的巴伦结构和用于对所述折合振子进行耦合馈电的馈电导体，A dual-polarization radiation unit, characterized by comprising a folding vibrator, a balun structure connected to the folding vibrator, and a feeding conductor for coupling and feeding the folding vibrator,
    所述折合振子包括四个沿周向布置的导体环，各所述导体环对称设置，且相邻两个所述导体环的对称轴垂直设置，而相对的两个所述导体环的对称轴重叠，形成十字交叉对称轴，各所述导体环具有两个朝向所述十字交叉轴中心的连接端，并在背离所述十字交叉轴中心且分别朝向相邻的两个所述导体环的端部设有向所述十字交叉轴中心延伸的第一枝节和第二枝节；The folded vibrator includes four conductor rings arranged in the circumferential direction, each of the conductor rings is symmetrically arranged, and the symmetry axes of the two adjacent conductor rings are vertically arranged, and the symmetry axes of the two opposite conductor rings Overlap to form a crisscross symmetry axis, each of the conductor loops has two connecting ends facing the center of the crisscross axis, and at the ends facing away from the center of the crisscross axis and respectively facing the two adjacent conductor loops The section is provided with a first branch and a second branch extending to the center of the cross axis;
    所述巴伦结构在其上表面开设有四个上下贯通的连通孔，四个所述连通孔分别位于所述十字交叉轴的四个象限内，任一所述导体环的两个所述连接端分别连接于相邻的两个所述连通孔的孔壁；The balun structure is provided with four communicating holes penetrating up and down on its upper surface, and the four communicating holes are respectively located in the four quadrants of the cross axis, and any two of the conductor rings are connected The ends are respectively connected to the hole walls of two adjacent communicating holes;
    所述馈电导体有两个并交叉设置，且各所述馈电导体一端***其中一连通孔，而其另一端连接对角的所述连通孔。There are two feed conductors and they are arranged crosswise, and one end of each feed conductor is inserted into one of the communicating holes, and the other end is connected to the diagonal communicating hole.
  2. 如权利要求1所述的双极化辐射单元，其特征在于，各所述导体环还包括顺次连接的第一辐射臂、第二辐射臂、第三辐射臂、第四辐射，以及分别与所述第一辐射臂、所述第二辐射臂、所述第三辐射臂、所述第四辐射臂对称设置的第五辐射臂、第六辐射臂、第七辐射臂和第八辐射臂，所述第四辐射臂连接于第八辐射臂；The dual-polarization radiation unit according to claim 1, wherein each of the conductor loops further comprises a first radiation arm, a second radiation arm, a third radiation arm, and a fourth radiation that are connected in sequence, and are connected to the The first radiating arm, the second radiating arm, the third radiating arm, the fifth radiating arm, the sixth radiating arm, the seventh radiating arm and the eighth radiating arm are symmetrically arranged on the fourth radiating arm, The fourth radiating arm is connected to the eighth radiating arm;
    其中，两个所述连接端分别设置在所述第一辐射臂和所述第二辐射臂上，所述第一枝节连接于所述第三辐射臂朝向所述第一十字交叉轴中心的端部，所述第二枝节连接于所述第七辐射臂朝向所述第一十字交叉轴中心的端部；Wherein, the two connecting ends are respectively arranged on the first radiating arm and the second radiating arm, and the first branch is connected to the third radiating arm facing the center of the first cross axis At the end, the second branch is connected to the end of the seventh radiating arm facing the center of the first cross axis;
    所述第二辐射臂和所述第六辐射臂的截面形状沿延伸方向变化设置。The cross-sectional shapes of the second radiating arm and the sixth radiating arm are changed along the extension direction.
  3. 如权利要求2所述的双极化辐射单元，其特征在于，所述第一辐射臂和所述第五辐射臂的截面形状沿延伸方向变化设置。3. The dual-polarization radiation unit according to claim 2, wherein the cross-sectional shapes of the first radiation arm and the fifth radiation arm are changed along the extension direction.
  4. 如权利要求2所述的双极化辐射单元，其特征在于，所述第一辐射臂、所述第二辐射臂和/或第一枝节在其下表面设有加强筋。3. The dual-polarization radiation unit according to claim 2, wherein the first radiating arm, the second radiating arm and/or the first branch are provided with reinforcing ribs on the lower surface thereof.
  5. 如权利要求1所述的双极化辐射单元，其特征在于，所述双极化辐射单元还包括多个绝缘材料制成的介质卡扣，任一所述折合振子的所述第一辐射臂和所述第五辐射臂留有空隙并由所述介质卡扣扣合连接，所述折合振子的第三辐射臂和相邻的所述折合振子的第七辐射臂留有空隙并由所述介质卡扣扣合连接。The dual-polarization radiation unit according to claim 1, wherein the dual-polarization radiation unit further comprises a plurality of dielectric buckles made of insulating materials, and the first radiation arm of any one of the folded vibrators A gap is left with the fifth radiating arm and is buckled and connected by the medium. The third radiating arm of the folded oscillator and the seventh radiating arm of the adjacent folded oscillator have a gap and are connected by the Media snap-fit connection.
  6. 如权利要求1所述的双极化辐射单元，其特征在于，所述双极化辐射单元还包括套设在所述馈电导体上并位于所述连通孔内的镶嵌介质，所述镶嵌介质由绝缘材料制成并用于限定所述馈电导体相对所述连通孔运动。The dual-polarization radiating unit according to claim 1, wherein the dual-polarization radiating unit further comprises a mosaic medium sleeved on the feed conductor and located in the communication hole, and the mosaic medium It is made of an insulating material and used to limit the movement of the feeding conductor relative to the communication hole.
  7. 如权利要求1至6任一所述的双极化辐射单元，其特征在于，所述双极化辐射单元还包括反射板，所述巴伦结构与所述反射板连接并与所述反射板绝缘设置。The dual-polarized radiation unit according to any one of claims 1 to 6, wherein the dual-polarized radiation unit further comprises a reflector, and the balun structure is connected to and connected to the reflector. Insulation settings.
  8. 如权利要求7所述的双极化辐射单元，其特征在于，所述双极化辐射单元还包括将所述巴伦结构固定在所述反射板上的绝缘垫片，所述绝缘垫片包括垫板主体和连接于所述垫板主体并向下延伸的凸块，所述绝缘垫片在所述凸块的下表面向上开设有贯通至所述垫板主体上表面的贯通孔，所述贯通孔有两个并分别供两个所述馈电导体穿过；7. The dual-polarization radiation unit according to claim 7, wherein the dual-polarization radiation unit further comprises an insulating spacer for fixing the balun structure on the reflector, and the insulating spacer comprises A backing plate main body and a bump that is connected to the backing plate body and extending downward, the insulating gasket is provided with a through hole that penetrates to the upper surface of the backing plate main body on the upper surface of the bump, and There are two through holes, and the two feed conductors respectively pass through;
    所述反射板在其上表面向下开设有上下贯通的固定孔，所述反射板连接于所述垫板主体且其所述固定孔套入所述凸块。The reflecting plate is provided with fixing holes penetrating up and down on the upper surface thereof, the reflecting plate is connected to the main body of the backing plate, and the fixing holes of the reflecting plate are sleeved into the bumps.
  9. 如权利要求8所述的双极化辐射单元，其特征在于，所述双极化辐射单元还包括电缆，所述电缆从内到外包括内层导体、介质层、外部导体和表皮，所述内层导体与所述馈电导体电连接，所述外部导体与所述巴伦结构电连接。The dual-polarization radiation unit according to claim 8, wherein the dual-polarization radiation unit further comprises a cable, and the cable includes an inner conductor, a dielectric layer, an outer conductor and a skin from the inside to the outside. The inner conductor is electrically connected with the feed conductor, and the outer conductor is electrically connected with the balun structure.
  10. 一种基站天线，其特征在于，包括如权利要求1至9任一所述的双极化辐射单元，所述双极化辐射单元有多个，且呈行列布置。A base station antenna, which is characterized by comprising the dual-polarization radiating unit according to any one of claims 1 to 9, wherein there are multiple dual-polarization radiating units arranged in rows and columns.
PCT/CN2019/088811 2019-03-29 2019-05-28 Dual polarized radiating unit and base station antenna WO2020199334A1 (en)

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