CN204118242U - Wideband dual-polarization radiating unit and array antenna - Google Patents
Wideband dual-polarization radiating unit and array antenna Download PDFInfo
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- CN204118242U CN204118242U CN201420387885.0U CN201420387885U CN204118242U CN 204118242 U CN204118242 U CN 204118242U CN 201420387885 U CN201420387885 U CN 201420387885U CN 204118242 U CN204118242 U CN 204118242U
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Abstract
The utility model discloses a kind of Wideband dual-polarization radiating unit and array antenna, forming antenna for being installed on reflecting plate, Wideband dual-polarization radiating unit comprises strutting piece and four variform oscillator arms; Four oscillator arms are positioned at same plane, are arranged in the array that two row two arrange, and form the dipole of two pairs of orthogonal polarizations; With the diagonal of array for axle, four oscillator arms are unsymmetric structure about axle; Oscillator arms is hollow out quadrilateral structure; Four oscillator arms are connected with the corner of strutting piece respectively, and strutting piece is positioned at the below of oscillator arms, and perpendicular to oscillator arms plane; The bight place of the close array center of each oscillator arms offers corner cut, and the bight of the strutting piece corresponding with it at corner cut place connects; Strutting piece is hollow structure, and the middle part of each wall of strutting piece is provided with contour wide groove.Adopt the utility model embodiment, effectively can improve the impedance bandwidth of single radiating element, improve isolation and the cross polarization ratio of radiating element.
Description
Technical field
The utility model relates to mobile communication antenna technical field, particularly relates to a kind of Wideband dual-polarization radiating unit and array antenna.
Background technology
In recent years, the 4G development communication technologies of taking as the leading factor with LTE is very fast, domestic being about to enters commercial stage, the demand of market to the 1710 ~ 2690MHz wideband base station antenna can containing multiple frequency range is increasing, and the antenna for base station be operated under this frequency can cover the frequency ranges such as DCS (1710-1880MHz), PCS (1850-1990MHz), UMTS (1920-2170MHz), TD-SCDMA (1880-2690MHz) and WIMAX and WIFI (2400 ~ 2500).Antenna radiation unit performance determines the performance of array antenna substantially, and 1710 ~ 2690MHz relative bandwidth reaches 44%, and this just requires that antenna radiation unit has ultrabroad band performance, has higher requirement to impedance matching, isolation etc.
At present, the technology that dual polarization vibrator adopts has two kinds: a kind of is coaxial two pairs of orthogonal oscillators, and another kind is the structure that four pairs of oscillators form a kind of parallelogram.Above oscillator adopts conventional half-wave dipole, dipole or folded dipole composition mostly.And oscillator arms designed by this type of radiating element is identical, as shown in Figure 1.Antenna radiation unit comprises identical four oscillator arms, and four oscillator arms are centrosymmetric about radiating element central point, and about x-axis, y-axis, x ' axle and y ' axial symmetry.
The oscillator arms of this structure makes single radiating element meet the demands, but when forming array (array is made up of 2 ~ 10 radiating elements usually), comparatively large on isolation impact, the isolation after often forming array only has about 22dB, does not reach the requirement of 28dB far away.Thus need to increase between radiating element or below oscillator arms to be added to sheet, strip sheet metal, solve the problem of isolation reluctantly, but add production difficulty and cost.
Summary of the invention
Technical problem to be solved in the utility model is, provides a kind of Wideband dual-polarization radiating unit and array antenna, effectively can improve the impedance bandwidth of single radiating element, improves isolation and the cross polarization ratio of radiating element; When radiating element composition array antenna, still keep good isolation and cross polarization ratio.
For solving above technical problem, the utility model embodiment provides a kind of Wideband dual-polarization radiating unit, forms antenna for being installed on reflecting plate, and described Wideband dual-polarization radiating unit comprises strutting piece and four variform oscillator arms;
Four oscillator arms are positioned at same plane, are arranged in the array that two row two arrange, and form the dipole of two pairs of orthogonal polarizations; With the diagonal of described array for axle, described four oscillator arms are unsymmetric structure about described axle; Described oscillator arms is hollow out quadrilateral structure; Described oscillator arms is hollow out quadrilateral structure;
Described four oscillator arms are connected with the corner of described strutting piece respectively, and described strutting piece is positioned at the below of described oscillator arms, and perpendicular to oscillator arms plane; The bight place of the close array center of each oscillator arms offers corner cut, and the bight of the strutting piece corresponding with it at described corner cut place connects;
Described strutting piece is hollow structure, and the middle part of each wall of described strutting piece is provided with contour wide groove.
Correspondingly, the utility model embodiment also provides a kind of array antenna, comprises reflecting plate and is installed in the multiple above-mentioned Wideband dual-polarization radiating unit on described reflecting plate.
The Wideband dual-polarization radiating unit that the utility model embodiment provides and array antenna, effectively can improve the impedance bandwidth of single radiating element, improves isolation and the cross polarization ratio of radiating element; By the Non-completety symmetry structure of oscillator arms, making radiating element when forming array antenna, still keeping good isolation and cross polarization ratio; Radiating element is one-body molded, is easy to produce, and consistency is good.
Accompanying drawing explanation
Fig. 1 is the vertical view of broadband dualpolarization radiation unit of the prior art;
Fig. 2 is the perspective view of an embodiment of the broadband dualpolarization radiation unit that the utility model provides;
Fig. 3 is the installation diagram of an embodiment of the broadband dualpolarization radiation unit that the utility model provides;
Fig. 4 is the structural representation of another embodiment of the broadband dualpolarization radiation unit that the utility model provides;
Fig. 5 is the perspective view of the location-plate of an embodiment of the broadband dualpolarization radiation unit that the utility model provides;
Fig. 6 is location-plate and the fed element johning knot composition of an embodiment of the broadband dualpolarization radiation unit that the utility model provides;
Fig. 7 is the structural representation of the fed element of an embodiment of the broadband dualpolarization radiation unit that the utility model provides;
Fig. 8 is the vertical view of an embodiment of the broadband dualpolarization radiation unit that the utility model provides.
Fig. 9 is the structural representation of an embodiment of the array antenna that the utility model provides.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.
See Fig. 2, it is the perspective view of an embodiment of the broadband dualpolarization radiation unit that the utility model provides.
The present embodiment provides a kind of Wideband dual-polarization radiating unit, forms antenna for being installed on reflecting plate 1.As shown in Fig. 3 ~ 8, Wideband dual-polarization radiating unit comprises strutting piece 9 and four variform oscillator arms;
Four oscillator arms are positioned at same plane, are arranged in the array that two row two arrange, and form the dipole of two pairs of orthogonal polarizations; With the diagonal of array for axle, four oscillator arms about x ' axle and y ' in unsymmetric structure; Oscillator arms is hollow out quadrilateral structure.
The asymmetric design of four oscillator arms, both ensure that the impedance of single radiating element, isolation and cross polarization ratio had bandwidth characteristic, ensured that again it still has good isolation when forming array antenna.And the hollow out design of oscillator arms, improves the impedance matching of radiating element and the performance of cross polarization ratio.
Four oscillator arms are connected with the corner of strutting piece 9 respectively, and strutting piece 9 is positioned at the below of oscillator arms, and perpendicular to oscillator arms plane; The bight place of the close array center of each oscillator arms offers corner cut, and the bight of the strutting piece 9 corresponding with it at corner cut place connects;
Strutting piece 9 is hollow structure, and the middle part of each wall of strutting piece is provided with contour wide groove 4.
Further, four oscillator arms comprise the first oscillator arms 11, second oscillator arms the 21, three oscillator arms 12 and the 4th oscillator arms 22; First oscillator arms 11 and the 3rd oscillator arms 12 form the first electrode couple, and the second oscillator arms 21 and the 4th oscillator arms 22 form the second electrode couple;
Strutting piece 9 comprises the first through hole 13, second through hole 23, third through-hole 14 and fourth hole 41;
First through hole 13 is corresponding with the position of the corner cut of the first oscillator arms 11, mating shapes; Second through hole 23 is corresponding with the position of the corner cut of the second oscillator arms 21, mating shapes; Third through-hole 14 is corresponding with the position of the corner cut of the 3rd oscillator arms 12, mating shapes; Fourth hole 41 is corresponding with the position of the corner cut of the 4th oscillator arms 22, mating shapes.
Further, Wideband dual-polarization radiating unit also comprises the first conversion feeder equipment 8 and the second conversion feeder equipment 15; The bottom of strutting piece is located at by first conversion feeder equipment 8 and the second conversion feeder equipment 15;
First conversion feeder equipment 8 and the first through hole 13 connect, and the second conversion feeder equipment 15 and the second through hole 23 connect.
Further, Wideband dual-polarization radiating unit also comprises the first fed element 40 and the second fed element 42;
First fed element 40 comprises feeder line T1, feeder line T3 and feeder line T5; Feeder line T1 is vertically arranged in the first through hole 13 and the first conversion feeder equipment 8, and feeder line T3 is vertically arranged in third through-hole 14; And the length of feeder line T1 is greater than the length of feeder line T3; Feeder line T5 is horizontally disposed with, and a termination of feeder line T5 is connected with the upper end of feeder line T1, and another termination of feeder line T5 is connected with the upper end of feeder line T3; Feeder line T3 and feeder line T5 forms L-type probe.
Second fed element 42 comprises feeder line T2 (not marking in accompanying drawing), feeder line T3 (not marking in accompanying drawing) and feeder line T6 (not marking in accompanying drawing); Feeder line T2 is vertically arranged in the second through hole 23 and the second conversion feeder equipment 15, and feeder line T4 is vertically arranged in fourth hole 41; And the length of feeder line T2 is greater than the length of feeder line T4; Feeder line T6 is horizontally disposed with, and a termination of feeder line T6 is connected with the upper end of feeder line T2, and another termination of feeder line T6 is connected with the upper end of feeder line T4; Feeder line T4 and feeder line T6 forms L-type probe.
Further, broadband dualpolarization radiation unit also comprises spacer 5;
First fed element 40 and the second fed element 42 are fixed respectively by spacer 5 and are isolated in strutting piece 9.Spacer 5 is plastic sheet.
Further, broadband dualpolarization radiation unit also comprises location-plate 6; First pair of projection 51 and second pair of projection 52 is provided with below location-plate 6;
First pair of projection 51 is corresponding with the position of feeder line T5, and second pair of projection 52 is corresponding with the position of feeder line T6, and the height of second pair of projection 52 is greater than the height of first pair of projection 51, with make the first fed element 40 and the second fed element 42 isolated;
Barb 35 is respectively provided with below the corner of location-plate 6; Each oscillator arms has the location hole 34 matched with barb 35;
Location-plate 6 is positioned at the top of four oscillator arms, and the barb 35 on location-plate 6 clamps with the location hole 34 in each oscillator arms, and location-plate 6 is fixed in four oscillator arms.
It should be noted that, location-plate 6 designs for hollow out, saves production cost.
Further, broadband dualpolarization radiation unit also comprises the first coaxial cable and the second coaxial cable;
First conversion feeder equipment is provided with the first feed groove 30; The screen of the first coaxial cable is welded on the first feed groove 30, and the heart yearn of the first coaxial cable is welded on the bottom of feeder line T1;
Second conversion feeder equipment is provided with the second feed groove 32; The screen of the second coaxial cable is welded on the second feed groove 32, and the heart yearn of the second coaxial cable is welded on the bottom of feeder line T2.
It should be noted that, the feeding classification of radiating element has two kinds: couple feed, and the first fed element 40 and the second fed element 42 are isolated in strutting piece 9 respectively by spacer 5, and carry out feed respectively by the first coaxial cable and the second coaxial cable; Connect feed, the bottom of feeder line T1 and the bottom of feeder line T2 are welded with strutting piece 9 respectively, form short circuit and carry out feed.
Further, the bottom of strutting piece 9 is also provided with screwed hole 7, and strutting piece 9 is fixed on reflecting plate 1 by screwed hole 7.
It should be noted that, the bottom of strutting piece 9 is also provided with reference column 10, and reflecting plate 1 is provided with the circular hole (not marking in accompanying drawing) matched with reference column 10.Reference column 10 is fixed in circular hole, swings when preventing radiating element and reflecting plate 1 from fixing.
Preferably, four oscillator arms, strutting piece 9, screwed hole 7 and two conversion feeder equipments are integrated devices, and it adopts aluminium or zinc alloy casting to form.Integral structure makes radiating element be easy to produce, and consistency is good.
See Fig. 9, it is the structural representation of an embodiment of the array antenna that the utility model provides.This array antenna, the multiple Wideband dual-polarization radiating units comprising reflecting plate 1 and be installed on reflecting plate 1; The structure of this Wideband dual-polarization radiating unit is identical with the structure of the broadband dualpolarization radiation unit in above-described embodiment, is not described in detail at this.
The above is preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection range of the present utility model.
Claims (10)
1. a Wideband dual-polarization radiating unit, forming antenna for being installed on reflecting plate, it is characterized in that, described Wideband dual-polarization radiating unit comprises strutting piece and four variform oscillator arms;
Four oscillator arms are positioned at same plane, are arranged in the array that two row two arrange, and form the dipole of two pairs of orthogonal polarizations; With the diagonal of described array for axle, described four oscillator arms are unsymmetric structure about described axle; Described oscillator arms is hollow out quadrilateral structure;
Described four oscillator arms are connected with the corner of described strutting piece respectively, and described strutting piece is positioned at the below of described oscillator arms, and perpendicular to oscillator arms plane; The bight place of the close array center of each oscillator arms offers corner cut, and the bight of the strutting piece corresponding with it at described corner cut place connects;
Described strutting piece is hollow structure, and the middle part of each wall of described strutting piece is provided with contour wide groove.
2. Wideband dual-polarization radiating unit as claimed in claim 1, it is characterized in that, described four oscillator arms comprise the first oscillator arms, the second oscillator arms, the 3rd oscillator arms and the 4th oscillator arms; Described first oscillator arms and described 3rd oscillator arms form the first electrode couple, and described second oscillator arms and described 4th oscillator arms form the second electrode couple;
Described strutting piece comprises the first through hole, the second through hole, third through-hole and fourth hole;
Described first through hole is corresponding with the position of the corner cut of described first oscillator arms, mating shapes; Described second through hole is corresponding with the position of the corner cut of described second oscillator arms, mating shapes; Described third through-hole is corresponding with the position of the corner cut of described 3rd oscillator arms, mating shapes; Described fourth hole is corresponding with the position of the corner cut of described 4th oscillator arms, mating shapes.
3. Wideband dual-polarization radiating unit as claimed in claim 2, is characterized in that, described Wideband dual-polarization radiating unit also comprises the first conversion feeder equipment and the second conversion feeder equipment; The bottom of described strutting piece is located at by described first conversion feeder equipment and described second conversion feeder equipment;
Described first conversion feeder equipment and described first through hole connect, and described second conversion feeder equipment and described second through hole connect.
4. Wideband dual-polarization radiating unit as claimed in claim 3, it is characterized in that, described Wideband dual-polarization radiating unit also comprises the first fed element and the second fed element;
Described first fed element comprises feeder line T1, feeder line T3 and feeder line T5; Feeder line T1 is vertically arranged in described first through hole and described first conversion feeder equipment, and feeder line T3 is vertically arranged in described third through-hole; And the length of feeder line T1 is greater than the length of feeder line T3; Feeder line T5 is horizontally disposed with, and a termination of feeder line T5 is connected with the upper end of feeder line T1, and another termination of feeder line T5 is connected with the upper end of feeder line T3; Feeder line T3 and feeder line T5 forms L-type probe;
Described second fed element comprises feeder line T2, feeder line T3 and feeder line T6; Feeder line T2 is vertically arranged in described second through hole and described second conversion feeder equipment, and feeder line T4 is vertically arranged in described fourth hole; And the length of feeder line T2 is greater than the length of feeder line T4; Feeder line T6 is horizontally disposed with, and a termination of feeder line T6 is connected with the upper end of feeder line T2, and another termination of feeder line T6 is connected with the upper end of feeder line T4; Feeder line T4 and feeder line T6 forms L-type probe.
5. Wideband dual-polarization radiating unit as claimed in claim 4, it is characterized in that, described Wideband dual-polarization radiating unit also comprises spacer;
Described first fed element and described second fed element are fixed respectively by described spacer and are isolated in described strutting piece.
6. Wideband dual-polarization radiating unit as claimed in claim 5, it is characterized in that, described Wideband dual-polarization radiating unit also comprises location-plate; First pair of projection and second pair of projection is provided with below described location-plate;
Described first pair of projection is corresponding with the position of described feeder line T5, described second pair of projection is corresponding with the position of described feeder line T6, the height of described second pair of projection is greater than the height of described first pair of projection, with make described first fed element and described second fed element isolated;
Respectively barb is provided with below the corner of described location-plate; Each oscillator arms has the location hole matched with described barb;
Described location-plate is positioned at the top of described four oscillator arms, and the location hole in the barb on described location-plate and each oscillator arms clamps, and described location-plate is fixed in described four oscillator arms.
7. Wideband dual-polarization radiating unit as claimed in claim 6, it is characterized in that, described Wideband dual-polarization radiating unit also comprises the first coaxial cable and the second coaxial cable;
Described first conversion feeder equipment is provided with the first feed groove; The screen of described first coaxial cable is welded on described first feed groove, and the heart yearn of described first coaxial cable is welded on the bottom of described feeder line T1;
Described second conversion feeder equipment is provided with the second feed groove; The screen of described second coaxial cable is welded on described second feed groove, and the heart yearn of described second coaxial cable is welded on the bottom of described feeder line T2.
8. Wideband dual-polarization radiating unit as claimed in claim 3, it is characterized in that, the bottom of described strutting piece is also provided with screwed hole, and described strutting piece is fixed on described reflecting plate by described screwed hole.
9. Wideband dual-polarization radiating unit as claimed in claim 8, it is characterized in that, described four oscillator arms, described strutting piece, described screwed hole and described two conversion feeder equipments are integrated devices.
10. an array antenna, is characterized in that, comprises reflecting plate and is installed in the multiple Wideband dual-polarization radiating units on described reflecting plate; Described Wideband dual-polarization radiating unit is Wideband dual-polarization radiating unit as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420387885.0U CN204118242U (en) | 2014-07-14 | 2014-07-14 | Wideband dual-polarization radiating unit and array antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420387885.0U CN204118242U (en) | 2014-07-14 | 2014-07-14 | Wideband dual-polarization radiating unit and array antenna |
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| CN204118242U true CN204118242U (en) | 2015-01-21 |
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| CN201420387885.0U Active CN204118242U (en) | 2014-07-14 | 2014-07-14 | Wideband dual-polarization radiating unit and array antenna |
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| CN107919536A (en) * | 2017-11-13 | 2018-04-17 | 合肥若森智能科技有限公司 | Dual-linear polarization antenna feed array and satellite communication antena for satellite communication |
| CN108039554A (en) * | 2017-11-24 | 2018-05-15 | 中国航天科工集团八五研究所 | Broadband low section orientation orthogonal dipole antennas |
| CN108063318A (en) * | 2017-05-12 | 2018-05-22 | 广东通宇通讯股份有限公司 | Antenna integrated unit, more array antennas and its transmission method and method of reseptance |
| CN110416732A (en) * | 2019-08-06 | 2019-11-05 | 深圳市统先科技股份有限公司 | A kind of ultra wideband dual polarization satellite dishes feed |
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2014
- 2014-07-14 CN CN201420387885.0U patent/CN204118242U/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108063318A (en) * | 2017-05-12 | 2018-05-22 | 广东通宇通讯股份有限公司 | Antenna integrated unit, more array antennas and its transmission method and method of reseptance |
| WO2018205277A1 (en) * | 2017-05-12 | 2018-11-15 | Tongyu Communication Inc. | Integrated antenna unit, multi-array antenna, transmission method and receiving method of same |
| CN108063318B (en) * | 2017-05-12 | 2021-01-26 | 广东通宇通讯股份有限公司 | Integrated antenna unit, multi-array antenna and transmission method and receiving method thereof |
| US11128036B2 (en) | 2017-05-12 | 2021-09-21 | Tongyu Communication Inc. | Integrated antenna unit, multi-array antenna, transmission method and receiving method of same |
| CN107919536A (en) * | 2017-11-13 | 2018-04-17 | 合肥若森智能科技有限公司 | Dual-linear polarization antenna feed array and satellite communication antena for satellite communication |
| CN107919536B (en) * | 2017-11-13 | 2020-02-18 | 合肥若森智能科技有限公司 | Double-linear polarization antenna feed source array for satellite communication and satellite communication antenna |
| CN108039554A (en) * | 2017-11-24 | 2018-05-15 | 中国航天科工集团八五研究所 | Broadband low section orientation orthogonal dipole antennas |
| CN110416732A (en) * | 2019-08-06 | 2019-11-05 | 深圳市统先科技股份有限公司 | A kind of ultra wideband dual polarization satellite dishes feed |
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