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WO2021237419A1 - Module d'antenne - Google Patents

Module d'antenne Download PDF

Info

Publication number
WO2021237419A1
WO2021237419A1 PCT/CN2020/092147 CN2020092147W WO2021237419A1 WO 2021237419 A1 WO2021237419 A1 WO 2021237419A1 CN 2020092147 W CN2020092147 W CN 2020092147W WO 2021237419 A1 WO2021237419 A1 WO 2021237419A1
Authority
WO
WIPO (PCT)
Prior art keywords
network board
calibration network
antenna module
filter
metal layer
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2020/092147
Other languages
English (en)
Chinese (zh)
Inventor
褚庆臣
岳月华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAC Technologies Holdings Shenzhen Co Ltd
AAC Module Technologies Changzhou Co Ltd
Original Assignee
AAC Acoustic Technologies Shenzhen Co Ltd
AAC Module Technologies Changzhou Co Ltd
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 AAC Acoustic Technologies Shenzhen Co Ltd, AAC Module Technologies Changzhou Co Ltd filed Critical AAC Acoustic Technologies Shenzhen Co Ltd
Priority to PCT/CN2020/092147 priority Critical patent/WO2021237419A1/fr
Publication of WO2021237419A1 publication Critical patent/WO2021237419A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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

Definitions

  • the present invention relates to the field of antenna technology, and in particular to an integrated structure of an antenna module in which an antenna and a filter are combined.
  • the antenna filter integrated structure is a new type of integrated structure that has gradually become an important structural method adopted by equipment manufacturers. It usually includes antenna elements, power division network boards, metal reflectors, calibration network boards, filters, and The metal shielding cavity structure, in which the reflector and the shielding cavity are both metal parts, which account for a large weight. Therefore, it is necessary to provide an antenna module with a simple structure, convenient assembly, and greatly reduced weight.
  • the purpose of the present invention is to provide an antenna module with a simple structure, convenient assembly, and greatly reduced weight.
  • an antenna module characterized in that the antenna includes a calibration network board, an integral injection molding and a vibrator part with a shielding frame formed at one end of the calibration network board, and fixed on the calibration network board
  • an end of the vibrator part away from the calibration network board is formed with a plurality of vibrators distributed in an array and power division lines respectively connected to the plurality of the vibrators.
  • an end of the vibrator part close to the calibration network board is further provided with a third metal layer in an area corresponding to the power dividing line.
  • the filter is a ceramic filter.
  • a conductive gasket is further provided between the filter and the first metal layer, and the conductive gasket is one or a combination of conductive lining cloth or conductive foam.
  • an array-distributed radio frequency connector is further provided on the end of the calibration network board far away from the vibrator part.
  • the vibrator part further includes a metal feed core penetrating the vibrator part in a direction close to the calibration network board, and the calibration network board is provided with a feed hole corresponding to the metal feed core, so The metal feed core connects the calibration network board and the power dividing line through the feed hole.
  • the metal feed core is encapsulated and integrally formed during the injection molding process of the vibrator part.
  • one end of the vibrator part close to the calibration network board is provided with a plurality of fixing pins distributed in an array, and the calibration network board is provided with fixing holes corresponding to the plurality of fixing pins, and the fixing pins It is fixed with the fixing hole by screws.
  • the end of the vibrator part away from the calibration network board and the end close to the calibration network board are both provided with reinforcing ribs.
  • the beneficial effects of the present invention are: by arranging the filter between the calibration network board and the vibrator part, and using the characteristics of integrated injection molding to directly design a shielding frame structure that replaces the shielding cavity, on the one hand, the thickness of the antenna is reduced and the antenna is easy to be miniaturized. On the other hand, the reflector and filter shielding cavity are omitted, and the weight and cost are greatly reduced.
  • FIG. 1 is a schematic diagram of an exploded structure of an antenna module of the present invention.
  • Figure 2 is a schematic diagram of the antenna module on one side of the calibration network board of the present invention.
  • FIG. 3 is a schematic diagram of the antenna module on the side of the oscillator part of the present invention.
  • Fig. 4 is a schematic diagram of the vibrator part near the side of the calibration network board of the present invention.
  • Fig. 5 is a schematic cross-sectional view at A-A in Fig. 2.
  • Fig. 6 is a partial enlarged schematic diagram of E in Fig. 5.
  • Fig. 7 is a schematic cross-sectional view at B-B in Fig. 2.
  • Fig. 8 is a schematic cross-sectional view at C-C in Fig. 2.
  • Fig. 9 is a schematic cross-sectional view at D-D in Fig. 2.
  • the present invention provides a filter 30 antenna module 100.
  • the antenna module 100 includes a calibration network board 10, a vibrator portion 20, and a filter 30.
  • the vibrator portion 20 includes a support frame that is integrally formed by injection molding and A metallization pattern formed on the surface of the support frame, and a shield frame 40 is formed at one end of the vibrator portion 20 close to the calibration network board 10, and the filter 30 is fixed on the calibration network board 10 close to the shield frame 40 And the filter 30 is encapsulated in the shield frame 40.
  • the inner side of the shield frame 40 is provided with a first metal layer 41
  • the calibration network board 10 is provided with a second metal layer 11 in an area close to the filter 30.
  • the first metal layer 41 and the first metal layer 41 The two metal layers 11 surround the filter 30 to form a sealed cavity 50.
  • the vibrator part 20 includes a vibrator 21, a power dividing line 22, a shielding frame 40, a metal feed core 23, a fixing pin 24 and a reinforcing rib 25.
  • the multiple vibrators 21 are arranged in an array at one end of the vibrator part 20 away from the calibration network board 10, and each vibrator 21 is connected to a power dividing line 22, and the power dividing line 22 is electrically connected to the calibration network board 10 via the metal feed core 23.
  • the vibrator part 20 is further provided with a third metal layer 26, and the third metal layer 26 is disposed at an end of the vibrator part 20 close to the calibration network board 10, and the third metal layer 26 is connected to the vibrator
  • the power dividing line 22 at the other end of the part 20 corresponds to the power dividing line 22 to form a microstrip transmission line structure.
  • the shield frame 40 is formed at one end of the vibrator part 20 close to the calibration network board 10 when the vibrator part 20 is integrally molded by injection molding, and the vibrator part 20 is made of plastic A flat frame structure manufactured by a surface metallization process after the substrate is injection molded, and the shield frame 40 is formed in an array and distributed at one end of the vibrator part 20 close to the calibration network board 10.
  • the shield frame 40 is an open slot with a rectangular cross-section
  • the filter 30 is installed in the shield frame 40
  • the inner surface of the shield frame 40 is provided with a first metal layer 41.
  • the filter 30 is fixed on the calibration network board 10, and a second metal layer 11 is provided between the filter 30 and the calibration network board 10.
  • the board 10 is used as the top surface of the shield frame 40 to seal the filter 30 in the shield frame 40, and a wrap filter is formed by the second metal layer 11 on the top surface and the first metal layer 41 on the bottom surface and each side surface.
  • the sealed cavity 50 of 30 plays a role of shielding the filter 30.
  • the shielding frame 40 integrally formed by the vibrator part 20 of the present invention greatly reduces the weight and cost, reduces the number of parts, shortens the assembly process and time, and avoids problems.
  • the performance stability risk caused by the assembly can effectively improve the consistency of the performance of the antenna module 100.
  • a conductive gasket 31 is further provided between the filter 30 and the first metal layer 41, and the conductive gasket 31 is a conductive lining cloth or a conductive foam or a combination of one or more.
  • the conductive gasket 31 between the filter 30 and the first metal layer 41 at the bottom of the shield frame 40 is conductive foam
  • the filter 30 is a ceramic filter.
  • the end of the filter 30 close to the vibrator portion 20 is connected to the conductive gasket 31, and the end of the filter 30 away from the vibrator portion 20 is connected to the calibration network board 10, and the calibration network
  • the area where the board 10 and the filter 30 are fixed is provided with a second metal layer 11 to cooperate with the first metal layer 41 to form a sealed cavity 50 to shield the filter 30.
  • the calibration network board 10 is a PCB board with a second metal layer 11 and an integrated circuit on the surface in the corresponding area near one end of the filter 30.
  • the antenna module 100 is coupled with the calibration function in the RRU device
  • the calibration network board 10 is an adapter board of a double-layer PCB board, referring to FIGS.
  • the calibration network board 10 is further provided with an array-distributed radio frequency connector 12 at one end away from the vibrator part 20, 1, 2, 8 and 9, the metal feed core 23 is disposed on the vibrator part 20, and the metal feed core 23 penetrates the vibrator part 20 in a direction close to the calibration network board 10 ,
  • the calibration network board 10 is provided with a feed hole 13 corresponding to the metal feed core 23, and the metal feed core 23 communicates with the calibration network board 10 and the power divider through the feed hole 13 Line 22.
  • the metal feed core 23 is encapsulated and integrally formed during the injection molding process of the vibrator part 20.
  • One end of the vibrator part 20 close to the calibration network board 10 is provided with a plurality of fixing pins 24 distributed in an array, and the calibration network board 10 is provided with fixing holes 14 corresponding to the plurality of fixing pins 24, so The fixing pin 24 and the fixing hole 14 are fixed by screws 60.
  • the vibrator part 20 is provided with reinforcing ribs 25 at the end far away from the calibration network board 10 and the end close to the calibration network board 10.
  • the reinforcing ribs 25 and the shield frame 40 distributed in the array enhance the strength of the vibrator part 20 And flatness, to ensure the strength of the whole machine without the reflector.
  • the filter 30 When assembling, the filter 30 is connected and fixed to the second metal layer 11 of the calibration network board 10 in the form of an array distribution by welding such as SMT, and then the filter 30 fixed on the calibration network board 10 is installed to the vibrator part 20 In the shielding frame 40, the vibrator part 20 is provided with a fixing pin 24 to facilitate the positioning of the calibration network board 10. Finally, the metal feed core 23 is welded to the feed hole 13 on the network calibration board 10 to achieve electrical connection, and the screws 60 are used to connect the The vibrator part 20 and the calibration network board 10 are fixed together to complete the assembly.
  • the present invention directly designs the structure of the shield frame 40 instead of the shield cavity by arranging the filter 30 between the calibration network board 10 and the vibrator part 20 and using the characteristics of integrated injection molding to directly design the structure of the shield frame 40 instead of the shield cavity.
  • the antenna module is reduced.
  • the thickness of 100 is easy to be miniaturized.
  • the reflector and filter shielding cavity are omitted, and the weight and cost are greatly reduced.

Landscapes

  • Aerials With Secondary Devices (AREA)

Abstract

La présente invention concerne un module d'antenne, caractérisé en ce que : le module d'antenne comprend une carte de réseau d'étalonnage, une partie oscillateur qui est moulée par injection de manière intégrée et est pourvue d'un cadre de blindage à une extrémité proche de la carte de réseau d'étalonnage, et un filtre qui est fixé à l'extrémité de la carte de réseau d'étalonnage à proximité du cadre de blindage et est emballé dans le cadre de blindage ; une première couche métallique est disposée dans le cadre de blindage ; une seconde couche métallique est disposée de manière correspondante dans la zone, où le filtre est fixé, de la carte de réseau d'étalonnage ; et la première couche métallique et la seconde couche métallique entourent le filtre pour former une cavité étanche. Selon la présente invention, le filtre est disposé entre la carte de réseau d'étalonnage et la partie oscillateur, et la structure de cadre de blindage qui remplace une cavité de blindage est directement conçue en utilisant la caractéristique de moulage par injection intégré, de telle sorte que, d'une part, l'épaisseur d'une antenne est réduite et la miniaturisation est facile, et d'autre part, une plaque réfléchissante et une cavité de blindage de filtre sont omises, et le poids et les coûts sont considérablement réduits.
PCT/CN2020/092147 2020-05-25 2020-05-25 Module d'antenne Ceased WO2021237419A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/092147 WO2021237419A1 (fr) 2020-05-25 2020-05-25 Module d'antenne

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/092147 WO2021237419A1 (fr) 2020-05-25 2020-05-25 Module d'antenne

Publications (1)

Publication Number Publication Date
WO2021237419A1 true WO2021237419A1 (fr) 2021-12-02

Family

ID=78745117

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/092147 Ceased WO2021237419A1 (fr) 2020-05-25 2020-05-25 Module d'antenne

Country Status (1)

Country Link
WO (1) WO2021237419A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107706544A (zh) * 2017-09-07 2018-02-16 广东通宇通讯股份有限公司 基站天线及其天线阵列模块
CN109494489A (zh) * 2018-12-06 2019-03-19 京信通信系统（中国）有限公司 滤波集成式基站天线
CN110011072A (zh) * 2019-02-22 2019-07-12 广东通宇通讯股份有限公司 一种集成化Massive MIMO天线
US20200028237A1 (en) * 2017-03-31 2020-01-23 Kmw Inc. Antenna assembly and device including antenna assembly
CN111129737A (zh) * 2019-12-31 2020-05-08 京信通信技术(广州)有限公司 天线单元及阵列天线

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200028237A1 (en) * 2017-03-31 2020-01-23 Kmw Inc. Antenna assembly and device including antenna assembly
CN107706544A (zh) * 2017-09-07 2018-02-16 广东通宇通讯股份有限公司 基站天线及其天线阵列模块
CN109494489A (zh) * 2018-12-06 2019-03-19 京信通信系统（中国）有限公司 滤波集成式基站天线
CN110011072A (zh) * 2019-02-22 2019-07-12 广东通宇通讯股份有限公司 一种集成化Massive MIMO天线
CN111129737A (zh) * 2019-12-31 2020-05-08 京信通信技术(广州)有限公司 天线单元及阵列天线

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