WO2023025100A1 - Oscillateur d'antenne et réseau d'antennes - Google Patents

Oscillateur d'antenne et réseau d'antennes Download PDF

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Publication number
WO2023025100A1
WO2023025100A1 PCT/CN2022/113995 CN2022113995W WO2023025100A1 WO 2023025100 A1 WO2023025100 A1 WO 2023025100A1 CN 2022113995 W CN2022113995 W CN 2022113995W WO 2023025100 A1 WO2023025100 A1 WO 2023025100A1
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WO
WIPO (PCT)
Prior art keywords
dielectric substrate
patch
antenna
parasitic
radiation
Prior art date
Application number
PCT/CN2022/113995
Other languages
English (en)
Chinese (zh)
Inventor
黄攀
牛魁
段涛
杨炬星
孙磊
张天亮
赵玉颖
严万喆
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2023025100A1 publication Critical patent/WO2023025100A1/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
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • 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

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to an antenna dipole and an antenna array.
  • Massive MIMO Massive Multiple-Input Multiple-Output, large-scale multiple-input and multiple-output technology
  • 5G antennas The notable feature of 5G antennas is that the number of antenna elements is doubled compared with 4G (4th Generation Mobile Communication Technology, fourth-generation mobile communication technology) antennas.
  • RRU Remote Radio Unit
  • the antenna it needs to be integrated with the radio frequency processing unit (RRU, Remote Radio Unit) In one; this requires the antenna to have the characteristics of miniaturization, low profile, integration and light weight, and at the same time, it needs to be easy to install and have good consistency in the whole machine during production.
  • the design scheme adopted by the antenna has the problems of many antenna oscillator parts and high manufacturing cost, which leads to complex antenna assembly and poor product performance consistency, which is not convenient for mass production.
  • an antenna vibrator including a bottom plate, a dielectric substrate, a non-conductive support, and a parasitic patch;
  • the dielectric substrate is stacked on the bottom plate, and the dielectric substrate is provided with a radiation patch and a feed network , the feed network is electrically connected to the radiating patch;
  • the non-conductive bracket is arranged on the side of the dielectric substrate away from the bottom plate, and detachably connects the dielectric substrate and the bottom plate; the parasitic patch Set on the non-conductive support, the parasitic patch is spaced from the radiation patch.
  • Some embodiments of the present application further provide an antenna array, including a plurality of the antenna elements described above, the plurality of antenna elements are arranged in an array, and the base plates of the plurality of antenna elements are integrated.
  • FIG. 1 is a schematic structural diagram of an antenna dipole provided according to some embodiments of the present application.
  • Fig. 2 is another schematic structural diagram of an antenna dipole provided according to some embodiments of the present application.
  • FIG. 3 is a schematic structural view of a non-conductive support provided with two layers of parasitic patches according to some embodiments of the present application;
  • Fig. 4 is a schematic structural view of a non-conductive support provided with three layers of parasitic patches according to some embodiments of the present application;
  • FIG. 5 is a schematic structural diagram of an antenna dipole in the form of eight elements provided according to some embodiments of the present application.
  • FIG. 6 is a schematic structural diagram of a four-element antenna dipole provided according to some embodiments of the present application.
  • FIG. 7 is a schematic structural diagram of an antenna array provided according to some embodiments of the present application.
  • FIG. 8 is another schematic structural diagram of an antenna array provided according to some embodiments of the present application.
  • FIG. 9 is a schematic perspective view of an antenna array with multiple layers of parasitic patches provided according to some embodiments of the present application.
  • Fig. 10 is a schematic top view of an antenna array with multiple layers of parasitic patches according to some embodiments of the present application.
  • 5G large-scale array antennas are generally composed of radiation units, feed structures, power distribution feed networks, and isolation strips.
  • the method of making the conductive part out because the solution has high requirements for the integration of injection molding, the problem of poor product performance consistency due to poor process consistency often occurs, and a lot of debugging work is required in the later stage; the radiation unit in the single bracket solution
  • the design is usually based on metal craft vibrators and PCB (Printed Circuit Board, printed circuit board) vibrators.
  • PCB Print Circuit Board, printed circuit board
  • the antenna vibrator includes a bottom plate 10 , a dielectric substrate 20, a non-conductive support 30 and a parasitic patch 40, the dielectric substrate 20 is stacked on the bottom plate 10, and the dielectric substrate 20 is provided with a radiation patch (not shown in the figure) and a feed network (not shown in the figure) shown), the feed network is electrically connected to the radiation patch;
  • the non-conductive bracket 30 is set on the side of the dielectric substrate 20 away from the bottom plate 10, and detachably connects the dielectric substrate 20 and the bottom plate 10;
  • the parasitic patch 40 is set on the non-conductive On the conductive support 30, and the parasitic patch 40 and the radiation patch are arranged at intervals.
  • the antenna vibrator provided by some embodiments of the present application divides the radiation unit into two parts, one part is a dielectric substrate 20, a radiation patch and a feeding network are arranged on the dielectric substrate 20, and the radiation patch and the feeding network are simultaneously arranged on the dielectric substrate 20, the same layer feeding of the radiating patch can be realized, which can reduce the number of antenna components compared to separately setting the radiating patch and the feeding network on two different layers.
  • the other part of the radiation unit is a parasitic patch 40, which is coupled with the radiation patch on the dielectric substrate 20 to form a radiation unit.
  • the two parts are connected and fixed by a non-conductive bracket 30 to realize the integration of the antenna oscillator and replace the traditional antenna oscillator.
  • the method of welding with the power distribution network can reduce the antenna manufacturing cost while reducing the number of antenna components, and the antenna assembly is simple, the product performance consistency is high, and the debugging link is avoided, which is convenient for mass production.
  • the base plate 10 is located at the bottom of the antenna oscillator, and can reflect the signal of the radiating patch, thereby suppressing the backward radiation of the antenna (that is, the radiation toward the base plate 10 ).
  • the dielectric substrate 20 may be replaced by a PCB substrate or a plastic injection-molded plastic substrate, and the feeding network is in the form of a microstrip line or a coplanar waveguide.
  • the feed network and the radiation patch can be uniformly etched on the surface of the PCB substrate to realize an integrated structure;
  • the dielectric substrate 20 adopts a plastic substrate processed by injection molding technology the feed network and the radiation patch
  • the chip can be attached to the surface of the plastic substrate by laser engraving or electrochemical plating process, or it can also realize the planar integrated structure by stamping process, or it can be attached to the surface of the plastic substrate by in-mold injection molding or hot melting.
  • the parasitic patch 40 is spaced apart from the radiation patch on the dielectric substrate 20 , and is fixed on the non-conductive support 30 to form an integral body with the radiation patch on the dielectric substrate 20 .
  • Both the parasitic patch 40 and the bottom plate 10 are made of metal. After adding the parasitic patch 40, the electromagnetic wave will undergo multiple radiation and reflections between the radiation patch, the parasitic patch 40 and the bottom plate 10, and then travel in the desired direction. They are superimposed on each other and cancel each other in the opposite direction. In this way, the added parasitic patch 40 acts as a director and can guide electromagnetic waves for directional radiation, thereby effectively increasing the gain of the antenna. And while increasing the antenna gain, the size of the antenna does not increase significantly, because the parasitic patches 40 are mainly distributed in the height direction of the antenna element (ie, in the direction perpendicular to the bottom plate 10 ).
  • the base plate 10, the dielectric substrate 20 and the parasitic patch 40 can be connected to form a whole through the non-conductive support 30.
  • screws 50 can be used as fasteners to fix the bottom plate 10, the dielectric substrate 20 and the parasitic patch 40 to form a whole, that is, the antenna element also includes at least one fastener , each fastener passes through the parasitic patch 40 , the non-conductive support 30 , the dielectric substrate 20 and is connected to the bottom plate 10 in sequence.
  • At least one rivet stud 11 is provided on the bottom plate 10, and at the same time, a nail hole 51 corresponding to the rivet stud 11 is provided on the dielectric substrate 20, the non-conductive support 30 and the parasitic patch 40, and the screws 50 can be sequentially Pass through the parasitic patch 40, the non-conductive support 30, and the nail hole 51 on the dielectric substrate 20 and screw it on the rivet stud 11, so as to fix the bottom plate 10, the dielectric substrate 20 and the parasitic patch 40 to form a overall.
  • the antenna vibrator can be installed and disassembled conveniently. It is only necessary to tighten the screw 50 on the rivet stud 11 of the base plate 10 or remove it from the rivet stud 11 of the base plate 10, which simplifies the installation and removal of the antenna vibrator. It is difficult to assemble and has high flexibility to integrate more radiation elements on the antenna element.
  • the bottom plate 10 , the dielectric substrate 20 and the parasitic patch 40 may be connected together by a snap-fit structure to form a whole.
  • at least one engaging portion 31 is provided on the non-conductive bracket 30
  • a relief hole 21 corresponding to at least one engaging portion 31 is provided on the dielectric substrate 20
  • at least one engaging portion 31 is provided on the bottom plate 10 .
  • the engaging parts 31 correspond to the engaging holes 12 one by one
  • the non-conductive bracket 30 is fixed on the bottom plate 10 through at least one engaging part 31 passing through the corresponding relief hole 21 and engaging in the corresponding engaging hole 12 . This also simplifies the difficulty of assembling the antenna vibrator. It is only necessary to press the non-conductive bracket 30 when assembling the antenna vibrator so that the engaging portion 31 on the non-conductive bracket 30 can be engaged with the corresponding engaging hole 12 of the bottom plate 10. .
  • the parasitic patch 40 can be fixed on the non-conductive bracket 30 by fasteners, or can be integrally formed with the non-conductive bracket 30 .
  • a plurality of support columns 32 can be arranged on the non-conductive support 30, and each support column 32 can be arranged on the parasitic patch 40
  • the via holes 41 cooperate with each other, and the parasitic patch 40 can be sleeved on the plurality of supporting columns 32 of the non-conductive bracket 30 through the via holes 41 .
  • the parasitic patch 40 can be integrally formed with the non-conductive support 30 by in-mold injection molding or hot-melt, and correspondingly, the material of the non-conductive support 30 can be a plastic insulating material.
  • the parasitic patch 40 provided on the non-conductive support 30 there may be more than one parasitic patch 40 provided on the non-conductive support 30, and more than one may be more than one in the direction parallel to the dielectric substrate 20, or more than one in the direction perpendicular to the dielectric substrate 20,
  • the parasitic patch 40 provided on the non-conductive support 30 may have multiple layers, and each layer of parasitic patch 40 is arranged opposite to the radiation patch on the dielectric substrate 20 (that is, as shown in FIGS. 3 and 4 ).
  • Multi-layer parasitic patches 40 are all distributed in the same direction), such multi-layer parasitic patches 40 can play a better guiding role, thereby improving the directivity and gain of the antenna, and each layer of parasitic patches 40 can Coupled with the radiation patch on the dielectric substrate 20, and together with the radiation patch, multiple resonant circuits are formed, so that the resonant frequency of each resonant circuit can be adjusted to the resonant frequency of the radiation patch by adjusting the size of each layer of parasitic patch 40 close to increase the impedance bandwidth of the antenna.
  • FIG. 3 shows the assembly structure when two layers of parasitic patches 40 are arranged on the non-conductive support 30. The lower layer of parasitic patches 40 in FIG.
  • FIG. 4 shows the assembly structure when three layers of parasitic patches 40 are arranged on the non-conductive support 30.
  • the bottom layer of parasitic patches 40 in FIG. On the column 32, and this layer of parasitic patch 40 is provided with a through hole 42 for the engaging part 31 of the non-conductive bracket 30 to pass through.
  • the surface structure of the parasitic patch 40 provided on the non-conductive support 30 can also be changed to change the path of the surface current of the parasitic patch 40 and increase the equivalent length of the antenna.
  • Each parasitic patch 40 of the 30 is provided with a through hole 42 and/or a notch 43 (shown in FIG. 4 ) is provided on the outer edge of each parasitic patch 40 of the non-conductive support 30, so that the low-frequency zero point of the antenna can not be changed. In some cases, the radiation aperture of the parasitic patch 40 is reduced, so that the antenna can be miniaturized in a wide frequency band.
  • the shape of the parasitic patch 40 is not limited, for example, each parasitic patch 40 on the non-conductive support 30 may be a square, a circle or other irregular structures.
  • Such parasitic patches 40 can not only be arranged on the non-conductive support 30 in the form of multiple layers, but also can be arranged on the non-conductive support 30 in the form of an array.
  • expansion and integration can be realized according to the distribution of the radiating elements, including but not limited to one for three (that is, three radiating elements), one for twelve (that is, twelve radiating elements) , one for twenty-four (that is, twenty-four radiation units), one forty-eight (that is, forty-eight radiation units) and other integrated forms.
  • the parasitic patches 40 can be arranged in a linear array or a rectangular array according to the layout of multiple radiation patches on the dielectric substrate 20 .
  • the dielectric substrate 20 is strip-shaped, and there are multiple radiation patches on the dielectric substrate 20 , and the plurality of radiation patches are arranged along a first direction S parallel to the length direction of the dielectric substrate 20 . are arranged at intervals, so that the multiple radiation patches on the dielectric substrate 20 are arranged in a straight line. Based on the linear arrangement of multiple radiation patches on the dielectric substrate 20 , the parasitic patches 40 on the non-conductive support 30 can adopt the same linear array arrangement.
  • the non-conductive support 30 may include a plurality of first support parts 33 arranged along the first direction S, the plurality of first support parts 33 correspond to the plurality of radiation patches one by one, and the non-conductive support 30 is provided with a plurality of parasitic patches 40.
  • Each first supporting portion 33 is connected with at least one parasitic patch 40 disposed opposite to the corresponding radiation patch.
  • FIG. 1 shows an antenna dipole structure with four radiating elements arranged in a linear array. As shown in FIG. form of antenna elements.
  • FIG. 2 shows an antenna dipole structure with two elements
  • FIG. 5 shows an antenna dipole structure with eight elements.
  • the dielectric substrate 20 is rectangular, and the radiation patches on the dielectric substrate 20 are arranged on the dielectric substrate 20 in a matrix. In this way, based on the matrix arrangement of multiple radiation patches on the dielectric substrate 20 , the parasitic patches 40 on the non-conductive support 30 can adopt the same matrix arrangement.
  • the non-conductive support 30 may include a plurality of second support parts 34 arranged in a matrix, and the plurality of second support parts 34 correspond to a plurality of radiation patches one by one.
  • the non-conductive support 30 is provided with a plurality of parasitic patches 40, each Each of the second supporting parts 34 is connected with at least one parasitic patch 40 disposed opposite to the corresponding radiation patch.
  • Four parasitic patches 40 are arranged on the non-conductive support 30 shown in FIG. 6 , which can form a four-element antenna dipole.
  • Some embodiments of the present application also provide an antenna array, including a plurality of antenna elements in the above embodiments, the plurality of antenna elements are arranged in an array, and the bottom plate 10 and the dielectric substrate 20 of the plurality of antenna elements are integrated.
  • the antenna element can be integrated with multiple antenna elements in the form of an independent unit (that is, a single radiating element), or can be integrated with multiple antenna elements in the form of a linear array, or can be integrated in the form of a matrix.
  • Fig. 7 shows the antenna array structure integrated by the antenna elements in the form of eight elements in Fig. 5
  • Fig. 8 shows the antenna array structure integrated by the antenna elements in the form of four elements in Fig. 6,
  • Fig. 9 and FIG. 10 respectively shows the three-dimensional structure and top view structure of the antenna array when each antenna element has more than two layers of parasitic patches 40 .

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Abstract

Selon des modes de réalisation, la présente invention se rapporte au domaine technique des communications. L'invention concerne un oscillateur d'antenne et un réseau d'antennes. L'oscillateur d'antenne comprend une plaque inférieure (10), un substrat diélectrique (20), un support non conducteur (30) et une plaque parasite (40), le substrat diélectrique (20) est disposé sur la plaque inférieure (10) de manière empilée, une plaque de rayonnement et un réseau d'alimentation sont disposés sur le substrat diélectrique (20), et le réseau d'alimentation est électriquement connecté à la plaque de rayonnement ; le support non conducteur (30) est disposé sur un côté du substrat diélectrique (20) qui est éloigné de la plaque inférieure (10), et est relié de manière amovible au substrat diélectrique (20) et la plaque inférieure (10) ; et la plaque parasite (40) est disposée sur le support non conducteur (30), et la plaque parasite (40) est espacée de la plaque de rayonnement.
PCT/CN2022/113995 2021-08-27 2022-08-22 Oscillateur d'antenne et réseau d'antennes WO2023025100A1 (fr)

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CN202110998266.X 2021-08-27
CN202110998266.XA CN115732906A (zh) 2021-08-27 2021-08-27 天线振子及天线阵列

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WO2023025100A1 true WO2023025100A1 (fr) 2023-03-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117410728A (zh) * 2023-12-11 2024-01-16 四川九洲电器集团有限责任公司 一种定向天线的引向器及天线系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116826397B (zh) * 2023-08-29 2024-04-16 中兴通讯股份有限公司 阵列天线

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060279471A1 (en) * 2005-06-01 2006-12-14 Zimmerman Martin L Antenna
CN103490143A (zh) * 2013-09-27 2014-01-01 佛山市蓝波湾通讯设备有限公司 一种阵列天线
CN111048893A (zh) * 2019-12-11 2020-04-21 中国电子科技集团公司第十四研究所 一种低剖面宽带双极化介质填充微带天线
CN111755799A (zh) * 2020-07-06 2020-10-09 江苏亨鑫科技有限公司 一种引向片支撑架及具有该支撑架的天线振子
CN113258272A (zh) * 2020-10-23 2021-08-13 中兴通讯股份有限公司 天线阵子及天线结构

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060279471A1 (en) * 2005-06-01 2006-12-14 Zimmerman Martin L Antenna
CN103490143A (zh) * 2013-09-27 2014-01-01 佛山市蓝波湾通讯设备有限公司 一种阵列天线
CN111048893A (zh) * 2019-12-11 2020-04-21 中国电子科技集团公司第十四研究所 一种低剖面宽带双极化介质填充微带天线
CN111755799A (zh) * 2020-07-06 2020-10-09 江苏亨鑫科技有限公司 一种引向片支撑架及具有该支撑架的天线振子
CN113258272A (zh) * 2020-10-23 2021-08-13 中兴通讯股份有限公司 天线阵子及天线结构

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117410728A (zh) * 2023-12-11 2024-01-16 四川九洲电器集团有限责任公司 一种定向天线的引向器及天线系统
CN117410728B (zh) * 2023-12-11 2024-04-19 四川九洲电器集团有限责任公司 一种定向天线的引向器及天线系统

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