WO2018107931A1 - Unité de rayonnement d'antenne utilisée dans une station de base, et antenne de station de base - Google Patents

Unité de rayonnement d'antenne utilisée dans une station de base, et antenne de station de base Download PDF

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Publication number
WO2018107931A1
WO2018107931A1 PCT/CN2017/110643 CN2017110643W WO2018107931A1 WO 2018107931 A1 WO2018107931 A1 WO 2018107931A1 CN 2017110643 W CN2017110643 W CN 2017110643W WO 2018107931 A1 WO2018107931 A1 WO 2018107931A1
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WO
WIPO (PCT)
Prior art keywords
base station
vibrator
station antenna
radiating unit
antenna radiating
Prior art date
Application number
PCT/CN2017/110643
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English (en)
Chinese (zh)
Inventor
刘前昌
史坤
张文凯
蔡立绍
赵秋利
王昆
Original Assignee
罗森伯格技术（昆山）有限公司
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Publication date
Application filed by 罗森伯格技术（昆山）有限公司 filed Critical 罗森伯格技术（昆山）有限公司
Publication of WO2018107931A1 publication Critical patent/WO2018107931A1/fr

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    • 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
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • 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
    • 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
    • H01Q19/17—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 the primary radiating source comprising two or more radiating elements
    • 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
    • H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path

Definitions

  • the present invention relates to the field of base station antennas, and in particular to a base station antenna radiating unit and a base station antenna capable of effectively reducing high and low resonance.
  • the service capacity of the wireless system has exploded, and the application technology of the antenna feeder system has been continuously updated.
  • the application technology of the antenna has gradually developed in two directions: on the one hand, the broadband antenna application required for the full utilization of spectrum resources.
  • Technology on the other hand, it is a multi-antenna application technology that supports MIMO (Multiple-Input Multiple-Output) with extended carrier capacity under existing spectrum conditions.
  • MIMO Multiple-Input Multiple-Output
  • the effective antenna feeder solution supports multiple OFDMA (Orthogonal Frequency Division Multiple Access).
  • OFDMA Orthogonal Frequency Division Multiple Access
  • Antenna technology is subject to the requirements of convenient station construction. Therefore, ultra-wideband technology and multiple antennas need to be integrated.
  • the optimization of the communication system optimizes the antenna coverage, and requires the remote antenna downtilt control technology to meet the market demand. Therefore, the multi-antenna integrated ultra-wideband electronically modulated antenna has emerged.
  • the ultra-wideband radiating element in the existing ultra-wideband electric adjustable antenna can be designed as an ultra-wideband by increasing the cross section of the vibrator, and can also enhance the cross-polarization discrimination rate by directly connecting different polarized radiators, but the processing is greatly reduced.
  • the antenna impedance bandwidth makes the impedance bandwidth of the antenna and the radiation parameters uncoordinated.
  • the high and low frequency resonance generated by the existing ultra-wideband radiation unit has an influence on the radiation parameters of the multi-antenna system and the circuit parameters.
  • the object of the present invention is to overcome the defects of the prior art, and provide a base station antenna radiating unit and a base station antenna to solve the effect of effectively reducing the influence of resonance on the radiation parameters of the multi-antenna system and the circuit parameters.
  • a base station antenna radiation unit includes a vibrator radiator, a radiation support body and a reflection plate, wherein the vibrator radiator is located at one end of the radiation support body, and the end face of the vibrator radiator a plurality of vibrator arms are circumferentially distributed, and two adjacent vibrator arms are coupled and coupled by a coupling connecting line, and the other end of the radiating support is connected to the reflecting plate and the bottom thereof is disconnected from the reflecting plate by DC connection.
  • the coupling connection line is evenly distributed on the vibrator radiator in the circumferential direction.
  • the coupling connection line includes a first connection portion, an intermediate connection portion and a second connection portion, the first connection portion and the second connection portion are respectively attached to adjacent two vibrator arms, the intermediate connection portion The first and second connecting portions are connected and attached to the vibrator radiator.
  • the coupling connection line and the vibrator arm are respectively distributed on opposite end faces of the vibrator radiator.
  • the width of the coupling connection line is equal or gradual.
  • the vibrator body is a double-sided PCB board.
  • the coupling connection line and the vibrator arm are respectively printed on opposite end faces of the vibrator radiator.
  • the vibrator arm is a metal plate
  • the coupling connection line is a metal conduction band
  • the vibrator body is a first insulating dielectric plate, and the first insulating dielectric plate is located between the vibrator arm and the coupling connection line.
  • the vibrator arm and the coupling connecting wire are respectively fixedly mounted on opposite end faces of the first insulating dielectric plate by the first insulating fixing structure.
  • the first insulation fixing structure is at least one of a plastic riveting, a plastic hook fixing, a solid or liquid glue fixing, and a plastic thread fastening structure.
  • the bottom of the radiation support and the reflector are DC-disconnected by the DC open channel.
  • the radiation support comprises two orthogonal feed baluns and balun fixing plates, the balun fixing plates being located at one end of the feeding balun away from the vibrator radiator.
  • the DC open channel is formed by a first partition hole and a partition surface on the reflector, and the partition is located inside the first partition hole and is a partial end surface of the bottom of the balun fixing plate.
  • the balun fixing plate is a double-sided or single-sided PCB board, and the sectional section is a printed metal area on the PCB board.
  • the balun fixing plate is a metal plate, and the balun fixing plate and the reflecting plate are separated by a second insulating medium plate, and the sectional portion is a partial end surface of the bottom of the second insulating dielectric plate.
  • the balun fixing plate and the second insulating medium plate are fixedly connected by the second insulating fixing structure.
  • the second insulating fixing structure is at least one of a plastic riveting, a plastic hook fixing, and a plastic screw fastening structure.
  • the partition wall is further provided with a second partition hole nested with the first partition hole.
  • the shape of the first and second partition holes corresponds to the shape of the partition, and the shape of the partition hole and the partition is a circular, square or elliptical shape.
  • the second partition holes are one or more.
  • the present invention also proposes another technical solution: a base station antenna comprising the above-mentioned base station antenna radiating unit.
  • the base station antenna radiating elements are distributed on the reflector in a side by side manner.
  • the present invention couples differently polarized vibrators together by loading a coupling connection line on the radiator, and the bottom of the vibrator is not grounded, which satisfies the ultra-wideband impedance bandwidth of the antenna and improves the antenna. Radiation parameters, and the imbalance problem of the original bottom feed is also solved.
  • the introduction of the vibrator of the invention can effectively reduce the high and low frequency resonance, It not only satisfies the isolation requirement of MIMO for multi-antenna system, but also solves the influence of resonance between high and low frequency radiators on antenna radiation index in multi-antenna system.
  • the vibrator of the present invention can form a low-resonance multi-frequency multi-antenna boundary condition with a low-frequency/high-frequency vibrator in a side by side manner, which can effectively reduce the influence of resonance on the radiation parameters of the multi-antenna system and the influence of the circuit parameters.
  • the ultra-wideband multi-frequency multi-port antenna system supports LTE technology and AISG protocol.
  • 1a is a schematic perspective structural view of a base station antenna radiating unit of the present invention
  • Figure 1b is a perspective view of the perspective of another angle of Figure 1a;
  • FIG. 2a is a schematic perspective structural view of a base station antenna radiating unit (the coupling line width is gradual) according to the present invention
  • Figure 2b is a top plan view of Figure 2a;
  • FIG. 3 is a schematic structural view of a coupling connecting wire of the present invention.
  • FIG. 4a is a schematic perspective structural view of another embodiment of a base station antenna radiating unit of the present invention.
  • Figure 4b is a schematic view of the exploded structure of Figure 4a;
  • FIG. 5 is a schematic perspective structural view of another embodiment of a base station antenna radiating unit according to the present invention.
  • 6a is a schematic perspective view of a base station antenna of the present invention.
  • Figure 6b is a perspective view of the perspective of another angle of Figure 6a;
  • Figure 6c is a partially enlarged schematic view of Figure 6b;
  • Figure 6d is a top plan view of Figure 6a
  • Figure 6e is a schematic side view of Figure 6a
  • Figure 6f is a partially enlarged schematic view of Figure 6e.
  • the base station antenna radiating unit disclosed by the invention can couple the differently polarized vibrators together by loading a coupling connecting line on the radiator, and the bottom of the feeding balun is not DC grounded, which can effectively solve the high and low frequency. resonance. Introduced into the multi-antenna integrated system, it not only satisfies the isolation requirement of MIMO for multi-antenna system, but also solves the influence of resonance between high and low frequency radiators on antenna radiation index in multi-antenna system.
  • a base station antenna radiating unit disclosed in the embodiment of the present invention includes a vibrator radiator 1, a radiation support body 2 and a reflector 3, and the vibrator radiator 1 is located in the radiation.
  • One end of the support body 2 and the other end of the radiation support body 2 are connected to the reflection plate 3.
  • the vibrator body 1 has a rectangular plate having a certain thickness as a whole, and four vibrator arms 4 are evenly distributed along the circumferential direction of the upper end surface thereof, and the opposite two vibrator arms 4 constitute a dipole and two dipoles. They are orthogonal to each other to form a dual-polarized vibrator.
  • the coupling connection line 5 are respectively located on both upper and lower opposite faces of the vibrator radiator 1.
  • the four coupling wires 5 are also uniformly distributed along the circumferential direction of the axis of the vibrator radiator 1.
  • Each of the coupling wires 5 connects the two adjacent vibrator arms 4, that is, the four coupling wires 5 couple the two polarized four vibrator arms 4 to each other.
  • the width of the coupling connection line 5 may be equal, as shown in Fig. 1b, or may be gradual, i.e., unequal, as shown in Fig. 2a, such as the width of the intermediate connection portion being greater than the width of the connection portions on both sides.
  • each of the coupling connecting wires 5 has a triangular shape which is approximately or substantially apex-shaped, but its shape is not limited to this.
  • each of the coupling connecting wires 5 is defined as a first connecting portion 51, an intermediate connecting portion 52, and a second connecting portion 53, wherein the first connecting portion 51 and the second connecting portion 53 are respectively attached adjacent to each other.
  • the two vibrator arms 4, that is, the first connecting portion 51 are connected to a vibrator arm, and the second connecting portion 53 is connected to another vibrator arm adjacent to the vibrator arm.
  • the intermediate connection portion 52 connects the first connection portion 51 and the second connection portion 53, and is attached to the vibrator radiator 1.
  • the vibrator radiator 1 may be a double-sided PCB board. As shown in FIG. 1a, when the vibrator radiator 1 is a double-sided PCB board, the four vibrator arms 4 can be directly printed on one end surface of the PCB board, and the four coupling connecting lines 5 are printed on the PCB board. On the other end face, each coupling connection line 5 directly connects the adjacent two vibrator arms 4. This method is suitable for printing vibrators with PCB boards.
  • the vibrator arm 4 is a metal plate, and the coupling connecting wire 5 is also a metal wire, so that a first insulating medium is used between the vibrator arm 4 and the coupling connecting wire 5.
  • the plates 6 are separated. That is, the vibrator radiator 1 may also include four metal vibrator arms 4, a first insulating dielectric plate 6 and four metal material coupling connecting wires 5 (such as copper wires, etc.), and the vibrator arm 4 and the coupling connecting wire 5 are respectively located. Upper and lower opposite end faces of the first insulating dielectric plate 6. This method is suitable for machining vibrators with metal.
  • the vibrator arm 4 and the coupling connecting wire 5 are fixedly mounted to the first insulating dielectric plate 6 through a first insulating fixing structure (not shown), and the first insulating fixing structure is optional but not limited to using plastic riveting and plastic card.
  • first insulating fixing structure is optional but not limited to using plastic riveting and plastic card.
  • plastic riveting and plastic card One of the hook fixing, solid or liquid glue fixing, and plastic thread fastening structure.
  • the radiation support body 2 comprises two orthogonal feed baluns 21 and a balun fixing plate 22, one end of the feed balun 21 passes through the vibrator radiator 1, and the perforations on the radiator body 1 through the vibrator (ie, the feed holes) ) feeding the radiating surface of the vibrator where the vibrator arm 4 is located.
  • the balun fixing plate 22 is located at the other end of the feeding balun 21 away from the vibrator radiator 1 for mounting the radiation unit to the reflecting plate 3.
  • the bottom of the feed balun 21 passes through the reflector 3 and is disconnected from the reflector 3 by DC.
  • the bottom of the feeding balun 21 and the reflecting plate 3 are DC-disconnected by the DC open channel, and the DC open channel is composed of the first blocking hole 71 and the partition 72.
  • a partition hole 71 is formed in the reflector 3, and the partition 72 is a partial end surface of the bottom of the balun fixing plate 22 and is located inside the first partition hole 71.
  • the balun fixing plate 22 is a single-sided PCB board, that is, when the bottom of the balun fixing board is a PCB board, as shown in FIG. 2a, the partitioning section 72 is a metal area printed on the PCB board, and at this time, the DC open circuit The groove is formed by the first partition hole 71 on the reflector and the metal region.
  • the balun fixing plate 22 can also be a double-sided PCB board.
  • the balun fixing plate 22 is a metal plate
  • the balun fixing plate 22 is further separated from the reflecting plate 3 by a second insulating dielectric plate 8.
  • the partition 72 is a partial bottom surface of the second insulating medium plate 8, that is, the DC open groove is formed by the first partition hole 71 on the reflecting plate 3 and a part of the bottom surface of the second insulating medium plate 8.
  • the second insulating dielectric plate 8 and the reflecting plate 3 are fixedly connected by a second insulating fixing structure (not shown), and the second insulating fixing structure thereof
  • a second insulating fixing structure (not shown)
  • the same can be used but is not limited to one of plastic riveting, plastic hook fixing, and plastic thread fastening structure.
  • one or more second partition holes that are nested with the first partition holes 71 are further formed on the partition 72 to form a plurality of nested DC open channels. Enhance the overall filtering effect of the radiation unit. That is, when the balun fixing plate 22 is a PCB board, one or more second blocking holes nested with the first blocking hole are further opened at the bottom of the PCB board; when the balun fixing plate 22 is a metal plate, then The bottom of the second insulating medium plate further defines one or more second partition holes nested with the first partition holes.
  • the shape of the first and second partition holes may correspond to the shape of the partition. When implemented, it may be, but not limited to, a circular, square or elliptical shape, as in the embodiment of the present invention.
  • the radiating elements disclosed in the present invention may constitute a linear or non-linear array, and one or more columns of high frequency/low frequency radiating elements may form a low resonance by side by side (side by side) manner.
  • Multi-frequency multi-antenna boundary conditions Under the multi-antenna integrated system, the introduction of the vibrator (ie, the radiating element) of the present invention can effectively reduce the high and low frequency resonance in the system, satisfy the isolation requirement of the MIMO for the multi-antenna system, and solve the high-low frequency radiator in the multi-antenna system. The effect of inter-resonance on the antenna radiation index.
  • the ultra-wideband multi-frequency multi-port antenna system under the low-resonance multi-frequency multi-antenna boundary condition supports LTE (Long Term Evolution) technology and AISG protocol.

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  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Aerials (AREA)

Abstract

L'invention concerne une unité de rayonnement d'antenne utilisée dans une station de base, et une antenne de station de base. L'unité de rayonnement d'antenne utilisée dans une station de base comprend un radiateur dipôle, un support de radiateur et un réflecteur. Le radiateur dipôle est situé à une extrémité du support de radiateur. Une pluralité de bras de dipôle sont répartis de manière circonférentielle sur une surface de borne du radiateur de dipôle, et deux bras de dipôle adjacents sont couplés l'un à l'autre par l'intermédiaire d'une ligne de connexion de couplage, ou, les lignes de connexion de couplage couplent et connectent une pluralité de bras de dipôle polarisés. L'autre extrémité du support de radiateur est reliée au réflecteur, et a une partie inférieure reliée, d'une manière de déconnexion en courant continu, au réflecteur. L'invention satisfait l'exigence d'une bande passante d'impédance d'antenne ultra-large, améliore un paramètre de rayonnement d'antenne, et résout un problème d'alimentation d'antenne non équilibrée au niveau d'une partie inférieure d'une antenne classique.
PCT/CN2017/110643 2016-12-16 2017-11-13 Unité de rayonnement d'antenne utilisée dans une station de base, et antenne de station de base WO2018107931A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201611165344.3A CN108206327A (zh) 2016-12-16 2016-12-16 基站天线辐射单元及基站天线
CN201611165344.3 2016-12-16

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WO2018107931A1 true WO2018107931A1 (fr) 2018-06-21

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CN109904585A (zh) * 2019-03-29 2019-06-18 摩比科技（深圳）有限公司 双极化辐射单元和基站天线
CN111478014A (zh) * 2020-04-28 2020-07-31 江苏泰科微通讯科技有限公司 一种十字型双极化振子
CN111710966A (zh) * 2020-06-30 2020-09-25 广东工业大学 一种开口环加载的双频双极化基站天线
CN112821067A (zh) * 2020-12-31 2021-05-18 广东博纬通信科技有限公司 一种低频振子单元和天线
CN114039198A (zh) * 2021-11-01 2022-02-11 摩比天线技术（深圳）有限公司 宽频辐射单元及其天线
CN114122700A (zh) * 2021-11-18 2022-03-01 中信科移动通信技术股份有限公司 振子及基站天线
WO2022143512A1 (fr) * 2020-12-31 2022-07-07 华为技术有限公司 Antenne réseau à couplage serré et dispositif de réseau
CN114914668A (zh) * 2022-05-09 2022-08-16 江苏亨鑫科技有限公司 一种方向图高一致性的低频滤波单元及天线阵列
CN115020965A (zh) * 2022-06-28 2022-09-06 联宝(合肥)电子科技有限公司 一种宽带天线结构以及电子设备
CN117013269A (zh) * 2023-09-21 2023-11-07 佛山市粤海信通讯有限公司 一种多频天线
CN114039198B (zh) * 2021-11-01 2024-05-28 摩比天线技术（深圳）有限公司 宽频辐射单元及其天线

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CN108832310A (zh) * 2018-06-26 2018-11-16 江苏亨鑫科技有限公司 一种用于多频基站天线中的宽频双极化辐射单元
CN109904585A (zh) * 2019-03-29 2019-06-18 摩比科技（深圳）有限公司 双极化辐射单元和基站天线
CN111478014A (zh) * 2020-04-28 2020-07-31 江苏泰科微通讯科技有限公司 一种十字型双极化振子
CN111710966B (zh) * 2020-06-30 2022-05-06 广东工业大学 一种开口环加载的双频双极化基站天线
CN111710966A (zh) * 2020-06-30 2020-09-25 广东工业大学 一种开口环加载的双频双极化基站天线
WO2022143512A1 (fr) * 2020-12-31 2022-07-07 华为技术有限公司 Antenne réseau à couplage serré et dispositif de réseau
CN112821067A (zh) * 2020-12-31 2021-05-18 广东博纬通信科技有限公司 一种低频振子单元和天线
CN114039198A (zh) * 2021-11-01 2022-02-11 摩比天线技术（深圳）有限公司 宽频辐射单元及其天线
CN114039198B (zh) * 2021-11-01 2024-05-28 摩比天线技术（深圳）有限公司 宽频辐射单元及其天线
CN114122700A (zh) * 2021-11-18 2022-03-01 中信科移动通信技术股份有限公司 振子及基站天线
CN114122700B (zh) * 2021-11-18 2024-01-26 中信科移动通信技术股份有限公司 振子及基站天线
CN114914668A (zh) * 2022-05-09 2022-08-16 江苏亨鑫科技有限公司 一种方向图高一致性的低频滤波单元及天线阵列
CN114914668B (zh) * 2022-05-09 2023-07-14 江苏亨鑫科技有限公司 一种方向图高一致性的低频滤波单元及天线阵列
CN115020965A (zh) * 2022-06-28 2022-09-06 联宝(合肥)电子科技有限公司 一种宽带天线结构以及电子设备
CN117013269A (zh) * 2023-09-21 2023-11-07 佛山市粤海信通讯有限公司 一种多频天线
CN117013269B (zh) * 2023-09-21 2023-12-01 佛山市粤海信通讯有限公司 一种多频天线

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