WO2021212277A1 - Antenne à double polarisation et à double fréquence - Google Patents

Antenne à double polarisation et à double fréquence Download PDF

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Publication number
WO2021212277A1
WO2021212277A1 PCT/CN2020/085638 CN2020085638W WO2021212277A1 WO 2021212277 A1 WO2021212277 A1 WO 2021212277A1 CN 2020085638 W CN2020085638 W CN 2020085638W WO 2021212277 A1 WO2021212277 A1 WO 2021212277A1
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WO
WIPO (PCT)
Prior art keywords
dual
frequency
radiator
substrate
polarization unit
Prior art date
Application number
PCT/CN2020/085638
Other languages
English (en)
Chinese (zh)
Inventor
吕超
马超
房牧
Original Assignee
深圳市大疆创新科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市大疆创新科技有限公司 filed Critical 深圳市大疆创新科技有限公司
Priority to CN202080026539.8A priority Critical patent/CN113826281A/zh
Priority to PCT/CN2020/085638 priority patent/WO2021212277A1/fr
Publication of WO2021212277A1 publication Critical patent/WO2021212277A1/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
    • 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
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • 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
    • 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
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole

Definitions

  • the embodiment of the application provides a dual-frequency dual-polarization antenna, including: a horizontal polarization unit, a vertical polarization unit, a partition plate, a floor, a first coaxial feeder and a second coaxial feeder; a horizontal polarization unit It includes a first substrate arranged horizontally, and a first radiator is provided in the first substrate; a vertical polarization unit includes two second substrates arranged vertically in a cross shape, and each second substrate is provided with a second radiator; The plate is arranged between the horizontal polarization unit and the vertical polarization unit, the bottom surface of the partition plate is provided with a metal sheet, and the metal sheet is connected with each second radiator.
  • the first coaxial feeder is connected with the floor and the horizontal polarization unit; the second coaxial feeder is connected with the floor and the vertical polarization unit.
  • the first radiator is formed by connecting multiple F-shaped components; the F-shaped components include high-frequency stubs, low-frequency stubs, and connectors; the connectors are electrically connected to the high-frequency stubs and low-frequency stubs, respectively, And the high frequency stub and the low frequency stub are located on the same side of the connector.
  • the connecting piece is in a gradual form, gradually narrowing from one end to the other end; the narrower end of the connecting piece is electrically connected to one end of the low-frequency stub; the wider end of the connecting piece is located in the center of the first radiator, In addition, the wider ends of the connecting pieces in the F-shaped parts in the first radiator are electrically connected to each other.
  • the first radiator is formed by connecting four F-shaped parts.
  • the second radiator includes an inverted cone component, an L-shaped high-frequency stub, and an L-shaped low-frequency stub; the L-shaped high-frequency stub is electrically connected to one end of the inverted cone component, and the L-shaped low-frequency stub is electrically connected to the inverted cone. The other end of the tapered part is electrically connected.
  • the partition plate is provided with a through hole; the first coaxial feed line passes through the through hole and is connected to the floor and the horizontal polarization unit.
  • the partition plate is a circular substrate or a rectangular substrate.
  • the first coaxial feeder includes an inner core wire and an outer layer; the outer layer of the first coaxial feeder is electrically connected to the floor; the inner core wire of the first coaxial feeder is electrically connected to the first radiator .
  • the second coaxial feeder includes an inner core wire and an outer layer; the outer layer of the second coaxial feeder is electrically connected to the floor; the inner core wire of the second coaxial feeder is electrically connected to the second radiator .
  • the height of the dual-frequency dual-polarized antenna is 0.16 times the wavelength of the low-frequency band
  • the width of the dual-frequency dual-polarized antenna is 0.25 times the wavelength of the low-frequency band.
  • the floor is connected with the horizontal polarization unit, so that the second coaxial feeder is connected with the floor and the vertical polarization unit, thereby providing a small dual-frequency dipole antenna with a simple structure, which reduces the radiation performance
  • the antenna size meets the design requirements of miniaturized smart devices.
  • Figure 2 is a front view of a dual-frequency dual-polarized antenna according to the present application.
  • Figure 3 is an exploded view of the dual-frequency dual-polarized antenna according to the present application.
  • Fig. 4 is an enlarged view of the first substrate according to the present application.
  • Fig. 5 is an enlarged view of the second radiator according to the present application.
  • Fig. 1 shows a schematic structural diagram of a dual-frequency dipole antenna according to an embodiment of the present application.
  • Fig. 2 shows a front view of the dual-frequency dipole antenna of this embodiment.
  • Fig. 3 shows an exploded view of the dual-frequency dual-polarized antenna of this embodiment.
  • the dual-frequency dipole antenna includes a horizontal polarization unit 1, a vertical polarization unit 2, a partition plate 3, a floor 4, a first coaxial feeder 5 and a second same Axis feeder 6.
  • the horizontal polarization unit 1 includes a first substrate arranged horizontally.
  • the first radiator 11 may be provided in the first substrate.
  • the first radiator 11 can receive dual-band horizontally polarized waves.
  • Horizontally polarized waves are radio waves whose electric field direction is parallel to the ground.
  • the vertical polarization unit 2 includes two second substrates vertically arranged in a cross shape, and each second substrate is provided with a second radiator 21.
  • the second radiator 21 can also receive dual-band vertically polarized waves.
  • Vertically polarized waves are radio waves whose electric field direction is perpendicular to the ground.
  • the dual frequency band can be either WiFi dual frequency, GSM (Global System for Mobile Communications, Global System for Mobile Communications) dual frequency or CDMA (Code Division Multiple Access, Code Division Multiple Access) dual frequency to meet Requirements for the use of wireless communication equipment.
  • the dual frequency band as the WiFi dual frequency as an example, the two frequency bands can be the 2.4 GHz frequency band and the 5 GHz frequency band respectively. This embodiment does not limit the specific value of the frequency band.
  • the partition plate 3 is arranged between the horizontal polarization unit 1 and the vertical polarization unit 2.
  • the bottom surface of the partition plate 3 is provided with a metal sheet, and the metal sheet is connected with each second radiator. Isolating the horizontal polarization unit 1 and the vertical polarization unit 2 by the partition plate 3 helps to reduce the antenna size while ensuring the antenna radiation performance.
  • the partition plate can also be a substrate, and the metal sheet can be arranged on the bottom surface of the substrate.
  • the embodiment of the present application does not limit the shape of the substrate. For example, it may be set as a rectangular substrate, or may be set as a circular substrate.
  • the coaxial feeder has a wide operating frequency range, low loss, and has a certain shielding effect on electrostatic coupling.
  • the requirements for miniaturization of the antenna are relatively high.
  • antenna characteristics are limited by physical size, and miniaturization often leads to loss of radiation characteristics.
  • the first radiator for receiving dual-band horizontally polarized waves is provided in the horizontal polarization unit
  • the vertical polarization unit is provided for receiving dual
  • the second radiator of the vertically polarized wave of the frequency band, and the partition plate is set between the horizontally polarized unit and the vertically polarized unit, so as to ensure the radiation performance while reducing the antenna size, which satisfies the requirements of miniaturized smart devices. Design requirements.
  • the first substrate may have a first surface and a second surface that are arranged opposite to each other.
  • the first radiator 11 is respectively provided in the first surface and the second surface of the first substrate.
  • Fig. 4 shows an enlarged view of the first substrate. As shown in Fig. 4, the first radiator 11 in the first side and the first radiator 11 in the second side can be arranged in opposite directions, so that radio waves can be received at multiple angles, which helps to improve the omnidirectional performance of the antenna .
  • each first radiator 11 may be formed by connecting multiple F-shaped components.
  • Each F-shaped component includes a high-frequency stub 111, a low-frequency stub 112, and a connector 113.
  • the connector 113 is electrically connected to the high-frequency stub 111 and the low-frequency stub 112, respectively, and the high-frequency stub 111 and the low-frequency stub 112 are located on the same side of the above-mentioned connector.
  • the low-frequency stub 112 in the F-type component may be longer than the high-frequency stub 111.
  • each first radiator is not limited to being formed by connecting four F-shaped parts, and may also be formed by connecting other numbers of F-shaped parts.
  • the connecting piece 113 in each F-shaped component may be in a gradual form, gradually narrowing from one end to the other end. So it can play a role in adjusting impedance.
  • the narrower end of the connecting member 113 can be electrically connected to one end of the low-frequency stub 112.
  • the wider end of the connecting member 113 may be located at the center of the first radiator, and the wider ends of the connecting members in the F-shaped parts in the first radiator may be electrically connected to each other.
  • the first radiator 11 is not limited to being composed of multiple F-shaped components, and may also be composed of other components capable of receiving dual-band horizontally polarized waves.
  • each second substrate in the vertical polarization unit may have a first surface and a second surface that are arranged oppositely.
  • the second radiator 21 is respectively provided in the first surface and the second surface of the second substrate.
  • the second radiator in the first surface of the second substrate and the second radiator in the second surface of the second substrate may also be arranged in opposite directions.
  • the L-shaped high frequency band stub 212 is electrically connected to one end of the inverted cone member 211, and the L-shaped low frequency band stub 213 is electrically connected to the other end of the inverted cone member 211.
  • the first coaxial feeder 5 includes an inner core wire and an outer layer.
  • the outer layer of the first coaxial feeder 5 can be electrically connected to the floor 4; the inner core wire of the first coaxial feeder 5 can be electrically connected to the first radiator 11.
  • the second coaxial feeder 6 includes an inner core wire and an outer layer.
  • the outer layer of the second coaxial feeder 6 can be electrically connected to the floor 4.
  • the inner core wire of the second coaxial feed line 6 may be electrically connected to the second radiator 21.
  • the height of the dual-frequency dual-polarized antenna is 0.16 times the wavelength of the low frequency band
  • the width of the dual-frequency dual-polarized antenna (not to the floor) is 0.25 times the wavelength of the low frequency band.
  • the requirements for miniaturization of the antenna are relatively high.
  • antenna characteristics are limited by physical size, and miniaturization often leads to loss of radiation characteristics.
  • the first radiator for receiving dual-band horizontally polarized waves is provided in the horizontal polarization unit
  • the vertical polarization unit is provided for receiving dual
  • the second radiator of the vertically polarized wave of the frequency band, and the partition plate is set between the horizontally polarized unit and the vertically polarized unit, so as to ensure the radiation performance while reducing the antenna size, which satisfies the requirements of miniaturized smart devices. Design requirements.

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  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

La présente invention concerne, selon modes de réalisation, une antenne à double polarisation et à double fréquence, comprenant une unité de polarisation horizontale, une unité de polarisation verticale, une plaque de séparation, un fond, une première ligne d'alimentation coaxiale et une seconde ligne d'alimentation coaxiale. L'unité de polarisation horizontale comprend un premier substrat disposé horizontalement qui est pourvu intérieurement d'un premier radiateur ; l'unité de polarisation verticale comprend deux seconds substrats qui sont disposés verticalement de façon croisée et pourvus chacun intérieurement d'un second radiateur ; la plaque de séparation est disposée entre l'unité de polarisation horizontale et l'unité de polarisation verticale, la surface inférieure de la plaque de séparation est pourvue d'une feuille métallique, et la feuille métallique est reliée à chaque second radiateur ; et la première ligne d'alimentation coaxiale est reliée au fond et à l'unité de polarisation horizontale, et la seconde ligne d'alimentation coaxiale est reliée au fond et à l'unité de polarisation verticale. Selon le mode de mise en œuvre, l'invention fournit une petite antenne à double polarisation et à double fréquence présentant une structure simple, de telle sorte que la taille de l'antenne soit réduite tout en garantissant les performances de rayonnement, et l'exigence de conception d'un petit dispositif intelligent est satisfaite.
PCT/CN2020/085638 2020-04-20 2020-04-20 Antenne à double polarisation et à double fréquence WO2021212277A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202080026539.8A CN113826281A (zh) 2020-04-20 2020-04-20 双频双极化天线
PCT/CN2020/085638 WO2021212277A1 (fr) 2020-04-20 2020-04-20 Antenne à double polarisation et à double fréquence

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/085638 WO2021212277A1 (fr) 2020-04-20 2020-04-20 Antenne à double polarisation et à double fréquence

Publications (1)

Publication Number Publication Date
WO2021212277A1 true WO2021212277A1 (fr) 2021-10-28

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CN (1) CN113826281A (fr)
WO (1) WO2021212277A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114374085A (zh) * 2021-12-09 2022-04-19 南通大学 一种面向5g毫米波双频段应用的双极化混合天线
WO2024067496A1 (fr) * 2022-09-27 2024-04-04 华为技术有限公司 Ensemble antenne et dispositif de communication

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CN104300209A (zh) * 2014-09-05 2015-01-21 江苏省东方世纪网络信息有限公司 垂直极化吸顶全向天线
CN105206946A (zh) * 2015-10-13 2015-12-30 中国铁塔股份有限公司 室内双极化全向吸顶天线
CN105870606A (zh) * 2016-05-13 2016-08-17 华南理工大学 一种工作于ism频段的低剖面全向圆极化天线
CN106450797A (zh) * 2015-08-06 2017-02-22 启碁科技股份有限公司 天线***
US20170214140A1 (en) * 2016-01-22 2017-07-27 Airgain, Inc. Multi-element antenna for multiple bands of operation and method therefor
US20170256863A1 (en) * 2016-03-01 2017-09-07 Wistron Neweb Corp. Antenna system
CN109301488A (zh) * 2018-09-06 2019-02-01 深圳大学 一种应用于室内分布***的全向双宽频双极化天线
CN110301069A (zh) * 2017-05-29 2019-10-01 华为技术有限公司 一种具有多极化方式的可配置天线阵列

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103606757A (zh) * 2013-11-16 2014-02-26 华中科技大学 一种双频双极化天线阵
CN104300209A (zh) * 2014-09-05 2015-01-21 江苏省东方世纪网络信息有限公司 垂直极化吸顶全向天线
CN106450797A (zh) * 2015-08-06 2017-02-22 启碁科技股份有限公司 天线***
CN105206946A (zh) * 2015-10-13 2015-12-30 中国铁塔股份有限公司 室内双极化全向吸顶天线
US20170214140A1 (en) * 2016-01-22 2017-07-27 Airgain, Inc. Multi-element antenna for multiple bands of operation and method therefor
US20170256863A1 (en) * 2016-03-01 2017-09-07 Wistron Neweb Corp. Antenna system
CN105870606A (zh) * 2016-05-13 2016-08-17 华南理工大学 一种工作于ism频段的低剖面全向圆极化天线
CN110301069A (zh) * 2017-05-29 2019-10-01 华为技术有限公司 一种具有多极化方式的可配置天线阵列
CN109301488A (zh) * 2018-09-06 2019-02-01 深圳大学 一种应用于室内分布***的全向双宽频双极化天线

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114374085A (zh) * 2021-12-09 2022-04-19 南通大学 一种面向5g毫米波双频段应用的双极化混合天线
CN114374085B (zh) * 2021-12-09 2023-07-21 南通大学 一种面向5g毫米波双频段应用的双极化混合天线
WO2024067496A1 (fr) * 2022-09-27 2024-04-04 华为技术有限公司 Ensemble antenne et dispositif de communication

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