WO2018072416A1

WO2018072416A1 - Dual-polarised antenna

Info

Publication number: WO2018072416A1
Application number: PCT/CN2017/081002
Authority: WO
Inventors: 蔡贵鸿; 刘如意; 黄江汉; 曾周平; 谢咏君; 董政
Original assignee: 深圳国人通信股份有限公司
Priority date: 2016-10-20
Filing date: 2017-04-19
Publication date: 2018-04-26
Also published as: CN206194949U

Abstract

Disclosed in the present utility model is a dual-polarised antenna, comprising a reflective plate and an oscillator; the oscillator comprises several radiation devices, each radiation device comprising a vertically erected support arm mounted on the reflective plate and an outer radiation arm and an inner radiation arm fixed to the end part of the support arm; the inner radiation arm is a closed loop shape and the outer radiation arm is a closed loop shape, the outer radiation arm surrounding the inner radiation arm, and a space being maintained between the inner radiation arm and the outer radiation arm; and the inner radiation arm is connected to the outer radiation arm by means of the support arm. Provided in the present utility model is an integrated broadband dual-polarised antenna oscillator having high gain, good cross-polarisation characteristics, and a standing wave ratio of less than 1.5 in almost 32% of the frequency band range.

Description

Title of Invention: A Dual Polarized Antenna

Technical field

[0001] The present invention relates to the field of mobile communication base station antennas, and more particularly to an ultra-wideband dual-polarized antenna and a radiation unit thereof.

Background technique

[0002] The base station antenna is a key component of the mobile communication network, and it not only provides a physical link between the mobile station and the base station, but also an important device in the application of mobile communication technologies such as frequency reuse, diversity reception, and optimized coverage. Correspondingly, various application technologies have also proposed various performance requirements for the performance of the base station antenna. One of the main concerns of mobile communication technology is how to use limited spectrum resources to meet the needs of users, in space and time. This has also led to the emergence of various mobile communication standards, resulting in a situation where multiple standards coexist. Therefore, how to design an antenna that can balance various performances and cover the widest possible frequency band is obviously important for adapting to various standards or for future scalability.

technical problem

Problem solution

Technical solution

[0003] In order to overcome the shortcomings of the conventional antenna oscillator, such as large volume, complicated structure, low gain, etc., failing to meet the increasing requirements of the antenna index, the present invention provides high gain, good cross-polarization characteristics, and nearly 32%. An integrated broadband dual-polarized antenna oscillator with a standing wave ratio of less than 1.5 in the frequency band.

[0004] In order to solve the above technical problem, the technical solution adopted by the utility model is:

[0005] A dual-polarized antenna comprising a reflector and a vibrator, the vibrator comprising a plurality of radiating devices, each radiating device comprising a support arm mounted to the reflector and erected, an outer radiating arm fixed to the end of the support arm, and The inner radiating arm; the inner radiating arm is closed-loop, the outer radiating arm is closed-loop, and the outer radiating arm surrounds the inner radiating arm and has a gap between the inner radiating arm; and the inner radiating arm is connected to the inner arm through the supporting arm The above external radiation arm.

[0006] The above dual-polarized antenna, the above several radiation devices have a common support arm, and the above several radiation devices Arranging along the circumferential direction of the support arm; the outer radiating arm is a fan ring, and the inner radiating arm is a fan ring

[0007] The above dual-polarized antenna, each radiating device further has a vertical radiating arm extending from the gap toward the reflecting plate, and the inner radiating arm is connected to the outer radiating arm through the vertical radiating arm.

[0008] In the above dual-polarized antenna, the center of the bottom of the support arm of the vibrator is provided with an internal thread; and the bottom side of the support arm is provided with a protruding pin for fixing the brace to the reflector, the protrusion The other end of the pin extends to the top of the support arm.

[0009] In the above dual-polarized antenna, two adjacent radiating devices are connected by a medium card, and the medium card includes a beam and a plurality of turns extending from the beam, and the plurality of turns extend into the gap of each of the radiation devices respectively. The spacing between the outer radiation arm and the inner radiation arm and the spacing between the outer radiation arms extending between the adjacent plurality of radiation devices for controlling the two adjacent plurality of radiation devices are controlled.

[0010] The dual-polarized antenna described above, each of the media cards includes a beam and five turns, wherein each of the two adjacent radiating devices has an outer radiating arm on each side of the radiating device and both sides of the inner radiating arm are Clamp between the turns.

[0011] The above dual-polarized antenna has at least a portion of the turns with a barb to prevent the medium card from being detached from the radiating device.

[0012] The above-mentioned dual-polarized antenna, the top of the support arm is provided with a feeding bridge, the feeding bridge includes two metal pieces that are three-dimensionally intersected, and two sides of the metal piece are respectively provided with a perforation, and the feeding bridge and the feeding bridge A medium is disposed between the vibrators, and the feeding bridge is connected to the vibrator through the medium, wherein the medium is a columnar body having an inner hole therebetween, and an inner hole of the medium and a bottom side of the support arm of the vibrator are disposed Some of the protruding pins or the inner conductor of the transmission cable perform a hole-axis clearance fit.

[0013] In the above dual-polarized antenna, the through hole at one end of the feeding bridge metal piece is gap-fitted and electrically connected to the protruding pin of the vibrator, and the other end of the feeding bridge is perforated with the transmission cable. The inner conductors are gap-fitted and electrically connected together, and the outer conductor of the transmission cable is electrically connected to the support arm of the vibrator.

[0014] In the above dual-polarized antenna, the above-mentioned radiation device is integrally formed or one-piece integrated.

Advantageous effects of the invention

Beneficial effect

[0015] The beneficial effects of the utility model are: [0016] A novel dual-polarized ultra-wideband oscillator and a radiating element structure thereof are provided, the frequency range of which spans from 698 MHz up to 960 MHz, high gain, good cross-polarization characteristics, and a standing wave ratio in a frequency band of approximately 32% An integrated broadband dual-polarized antenna oscillator of less than 1.5. The performance is excellent, and its size is especially small, especially suitable for miniaturization, multi-frequency system antenna design and layout.

Brief description of the drawing

DRAWINGS

1 is a schematic structural view of each part of the present invention.

2 is a schematic detailed view of the top angle observation of the main part structure of the present invention.

[0019] FIG. 3 is a schematic detailed view of the bottom angle observation of the main part structure of the present invention.

4 is a schematic detailed view of a top angle observation vibrator of the present invention.

[0021] FIG. 5 is a schematic detailed view of the bottom angle observation vibrator of the present invention.

6 is a schematic view of a medium of the present invention.

7 is a schematic view of a feed bridge of the present invention.

8 is a schematic detailed view of a media card of the present invention.

9 is a schematic detailed view of a transmission cable of the present invention.

In the figure, 01 is a reflector, 03 is a vibrator, 031 is an inner radiating arm, 032 is an outer radiating arm, 033 is a vertical radiating arm, 034 is a supporting arm, 0340 is an internal thread, 05 is a medium, and 050 is a medium. Inner hole, 07 is the feed bridge, 071 is the first perforation, 072 is the second perforation, 09 is the media card, 091 is the inter-turn, 092 is the hook, 1 1 is the transmission cable, 110 is the protective layer, 111 is the outer The conductor, 112 is a dielectric layer, 113 is an inner conductor, and 13 is a protruding pin.

Embodiments of the invention

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

1 is a schematic structural view of each part of the present invention. Includes reflector 01, vibrator 03, media 05, feed bridge 07, media card 09, and transmission cable 11. The vibrator 03 is fixed on the reflector 01; the dielectric card 09 is fixed on the vibrator 03; the transmission cable 11 is electrically connected to the vibrator 03 and the feeder bridge 07 respectively; the medium 05 is interposed between the vibrator 03 and the feeder bridge 07.

2 is a schematic detailed view of the top angle observation of the main part structure of the present invention. [0030] The top of the vibrator 03 remote from the reflector 01 is provided with a feeding bridge 07. The feeding bridge 07 includes two metal sheets which are three-dimensionally intersected. The two sides of the metal sheet are respectively provided with a perforation, which are respectively the first perforations 071. The second through hole 072; the first through hole 071 of the feeding bridge 07 and the protruding pin 13 of the vibrator 03 are gap-fitted and electrically connected together, and the second through hole 072 and the transmission cable 11 at the other end of the feeding bridge 07 The inner conductors 113 are bore-spaced and electrically connected together.

[0031] wherein the medium 05 is sandwiched between the feed bridge 07 and the vibrator 03 and the inner hole 050 of the medium 05 and the protruding pin 1 of the vibrator 03

3 or the inner conductor 113 of the transmission cable 11 performs a hole-axis clearance fit.

[0032] FIG. 3 is a schematic detailed view of the bottom angle observation of the main part structure of the present invention.

[0033] The protruding pin 11 of the vibrator 03 can be gap-fitted with the hole on the reflector 01, and the internal thread 12 of the vibrator 03 is screwed with the screw passing through the reflector 01, and the vibrator 03 is effectively fixed to the reflector 01. on.

[0034] The outer conductor 15 of the transmission cable 11 is electrically connected to the support arm 13 of the vibrator 03.

[0035] It can be seen that one vibrator 03 is composed of one outer radiating arm 032 and one inner radiating arm 031, and the dual polarized antenna in the figure is composed of four vibrators 03, and the outer radiating of two adjacent vibrators 03 The arm 032 and the inner radiating arm 0 31 are connected and fixed by a media card 09. The media card 09 includes a beam 090, a weir 091 and a hook, and a weir 091 and a hook are arrayed at the bottom of the beam 090. The hooks 092 are distributed on both sides of the beam 090, and the turns 091 of the medium card 09 respectively extend into the gap between the outer radiating arm 032 and the inner radiating arm 031 of two adjacent vibrators 03, the medium card 09 The hooks 092 are hooked on the inner radiating arms 031 of the vibrator 03, respectively.

4 is a schematic detailed view of a top angle observation vibrator of the present invention. As can be seen from the figure, the protruding pin 13 is a cylindrical body extending from the bottom of the supporting arm 034 along the longitudinal direction of the supporting arm 034 to the top of the supporting arm 034, and the top of the supporting arm 034 of the protruding pin 13 is provided with a corresponding pit. , to place the medium 05 stably.

[0037] FIG. 5 is a schematic detailed view of the bottom angle observation vibrator of the present invention. The vibrator 03 shown in the drawing includes an outer radiating arm 032, an inner radiating arm 031, a vertical radiating arm 033, and a supporting arm 034. The outer radiating arm 032 and the inner radiating arm 031 are both at the axial center of the supporting arm 034. In the hollow fan shape of the center, the fan radius of the inner radiating arm 031 is smaller than the fan radius of the outer radiating arm 032, that is, a gap is left between the inner radiating arm 031 and the outer radiating arm 032, and the bottom of the supporting arm 034 and the reflecting plate 01 contact, the top of the support arm 034 is in contact with the inner radiating arm 031 and the outer radiating arm 032, and the inner radiating arm 031 and the outer radiating arm 032 are located on the same plane perpendicular to the top of the supporting arm 034, the inner radiating arm 031 and the outer radiating a gap between the arcs of the arms 032 is provided The vertical radiating arm 033 extending toward the bottom of the support arm 034, the outer radiating arm 032, the inner radiating arm 031, and the vertical radiating arm 033 of one of the vibrators 03 each have a circular and equally distributed array distribution around the axis of the supporting arm 034. And a gap is left between the outer radiating arms 032 of the two adjacent vibrators 03.

[0038] The outer radiating arm 032 of one of the vibrators 03 is connected to the inner radiating arm 031 through the vertical radiating arm 033, and the inner radiating arms 031 of the respective vibrators 03 are connected together by the supporting arm 034, thereby effectively ensuring the strength of the vibrating arm of the vibrator 03.

[0039] The bottom center of the support arm 034 of the vibrator 03 is provided with an internal thread 0340 such that the support arm 034 and the reflection plate 01 can be connected by screws; the bottom side of the support arm 034 is provided with a protruding pin 13 such that the support arm 034 and the reflection plate 01 is fixed by means of a clearance pin clearance, and the other end of the protruding pin 13 extends to the top of the support arm 034.

6 is a schematic view of a medium of the present invention.

The medium 05 shown in the drawing is a circular cylindrical body in which the middle hollow portion is an inner hole 050 through which the inner conductor 113 can pass through the protruding pin 13 or the inner conductor 113 of the transmission cable 11.

7 is a schematic view of a feed bridge of the present invention.

[0043] The feed bridge 07 shown in the figure is a flat rectangular parallelepiped, and is provided with a perforation on each side thereof, which is a first through hole 071, and a second through hole 072, which can pass through the protruding pin 13 or through the through hole. Conductor 113.

8 is a schematic detailed view of a media card of the present invention.

[0045] The media card 09 shown in the drawing includes a beam 090, a weir 091 and a hook 092; the overall appearance is similar to the toothed shape of the alveolar, and the inter-turn 091 and the hook 092 are arranged in an array on the bottom of the beam 090. The hooks 092 are distributed on both sides of the bottom of the beam 090, and the hook-shaped bodies of the hooks 092 on both sides face the inner side of the beam 090, and a gap is left between the turns 091 and the hooks 092.

The transmission cable 11 shown in the drawing includes a protective layer 110, an outer conductor 111, a dielectric layer 21, and an inner conductor 113.

[0048] wherein the inner conductor 113, the dielectric layer 21, the outer conductor 111, and the protective layer 110 are sequentially disposed from the inside to the outside, wherein the dielectric layer is an insulating layer of the inner conductor 113 and the outer conductor 111.

It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting, although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that The technical solution of the utility model is modified or equivalently replaced without departing from the present invention. The spirit and scope of the technical solution should be covered by the scope of the claims of the present invention.

Claims

Claim

[Claim 1] A dual-polarized antenna comprising a reflecting plate (01) and a vibrator (03), wherein the vibrator (03) comprises a plurality of radiating devices, each radiating device comprising a mounting plate (01) And a support arm (034) erected, an outer radiating arm (032) fixed to an end of the support arm (034), and an inner radiating arm (031); the inner radiating arm (031) is closed-loop, the outer The radiation arm (032) is closed-loop, and the outer radiation arm (032) surrounds the inner radiation arm (031) and leaves a gap between the inner radiation arm (031); the inner radiation arm (031) passes through the The support arm (0 34) is coupled to the outer radiating arm (032).

[2] The dual-polarized antenna according to claim 1, wherein the plurality of radiating devices have a common supporting arm (034), and the plurality of radiating devices are circumferentially along the supporting arm (034) Arranged; the outer radiating arm (032) is a fan ring, and the inner radiating arm (031) is a fan ring.

[Claim 3] The dual-polarized antenna according to claim 1, wherein each of the radiating devices further has a vertical radiating arm (033) extending from the gap toward the reflecting plate (01). The inner radiating arm (031) is coupled to the outer radiating arm (032) by the vertical radiating arm (033).

[Claim 4] The dual-polarized antenna according to claim 1, wherein a bottom center of the support arm (034) of the vibrator (03) is provided with an internal thread (0340); a bottom side of (034) is provided with a protruding pin (13) for fixing the arm (034) to the reflecting plate (01), and the other end of the protruding pin (13) extends to the supporting arm The top of (034).

[Claim 5] The dual-polarized antenna according to claim 3, wherein two adjacent radiating devices are connected by a media card (09), the media card (09) comprising a beam (090), a beam from the beam (090) a plurality of turns (091) extending, the plurality of turns (091) extending into the gap of each radiating device for controlling the outer radiating arm (032) and the inner radiating arm (031) And a spacing between the outer radiating arms (032) extending between the adjacent plurality of radiating devices for controlling the two adjacent plurality of radiating devices.

[Claim 6] The dual-polarized antenna according to claim 5, wherein each of the media cards (09) comprises a beam (090) and five turns (091), the two adjacent radiation devices in, On both sides of the outer radiating arm (032) of each radiating device, both sides of the inner radiating arm (031) are held by the inter-turn (091).

[Claim 7] The dual-polarized antenna according to claim 5, wherein at least a part of the turn (0)

91) having a barb to prevent the media card from coming off the radiation device.

[Claim 8] The dual-polarized antenna according to claim 1, wherein a top of the support arm (034) is provided with a feed bridge (07), and the feed bridge (07) includes a three-dimensional cross Two metal sheets, one side of each side of the metal piece is provided with a perforation, and a medium (05) is disposed between the feeding bridge (07) and the vibrator (03), and the feeding bridge (07) passes The medium (05) is connected to the vibrator (03), the medium (05) is a columnar body having an inner hole (050) therebetween, and the inner hole (050) of the medium (05) The protruding pin (13) provided on the bottom side of the support arm (034) of the vibrator (03) or the inner conductor (112) of the transmission cable (11) performs a hole-axis clearance fit.

[0099] The dual-polarized antenna according to claim 8, wherein the feed bridge (07) has a perforation (071) at one end of the metal piece and the protruding pin of the vibrator (03) (13) performing a hole-axis clearance fit and electrically connecting together, and the other end of the feed bridge (07) has a hole-to-hole clearance (072) with the inner conductor of the transmission cable (11) and is electrically connected The outer conductor (111) of the transmission cable (11) is electrically connected to the support arm (034) of the vibrator (03).

The dual-polarized antenna according to any one of claims 1 to 3, wherein the radiation device is integrally formed or one-piece.