CN104103894A - Antenna and array antenna - Google Patents
Antenna and array antenna Download PDFInfo
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- CN104103894A CN104103894A CN201410334094.6A CN201410334094A CN104103894A CN 104103894 A CN104103894 A CN 104103894A CN 201410334094 A CN201410334094 A CN 201410334094A CN 104103894 A CN104103894 A CN 104103894A
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Abstract
The invention discloses an antenna. The antenna comprises a broadband dual-polarized radiation unit and a reflecting plate, wherein the broadband dual-polarized radiation unit comprises a support part and four vibrator arms in different shapes; the four vibrator arms are located at the same plane and arranged in an array with two rows and two columns to form two pairs of orthogonally polarized dipoles; as the diagonal line of the array serves as an axis, the four vibrator arms are in an asymmetric structure with respect to the axis; the vibrator arms are of hollow quadrangular structures; the four vibrator arms are connected with the four corners of the support part; the support part is located below the vibrator arms and is vertical to the plane of the vibrator arms; each vibrator arm is provided with a clipped corner near the corner part in the center of the array, and is connected with a corner part of a corresponding support part at the clipped corner; the support part is of a hollow structure; a groove with equal height and equal width is formed in the middle part of each wall surface of the support part. With the adoption of the embodiment of the invention, impedance bandwidth of single radiation unit can be increased efficiently, and the isolation degree and the cross polarization ratio of the radiation unit are improved.
Description
Technical field
The present invention relates to mobile communication antenna technical field, relate in particular to a kind of antenna 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, market is increasing to containing the demand of 1710～2690MHz broadband antenna for base station of multiple frequency ranges, and the antenna for base station being 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 has determined the performance of array antenna substantially, and 1710～2690MHz relative bandwidth reaches 44%, and this just requires antenna radiation unit to have ultrabroad band performance, and impedance matching, isolation etc. are had higher requirement.
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 the designed oscillator arms of 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 axle, y axle, x ' axle and y ' axial symmetry.
The oscillator arms of this structure can meet the demands single radiating element, but in the time of composition array (array is made up of 2～10 radiating elements conventionally), larger on isolation impact, the isolation often forming after array only has 22dB left and right, the requirement that does not reach 28dB far away.Thereby need to, increasing and be added to sheet, strip sheet metal between radiating element or below oscillator arms, solve reluctantly the problem of isolation, but increase production difficulty and cost.
Summary of the invention
Technical problem to be solved by this invention is, a kind of antenna and array antenna are provided, and can effectively improve the impedance bandwidth of single radiating element, improves isolation and the cross polarization ratio of radiating element; In the time of radiating element composition array antenna, still keep good isolation and cross polarization ratio.
The embodiment of the present invention provides a kind of antenna to comprise Wideband dual-polarization radiating unit and reflecting plate; 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 are listed as, and form the dipole of two pairs of orthogonal polarizations; Taking the diagonal of described array as 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 four jiaos 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 connects in the bight of the described corner cut place strutting piece corresponding with it;
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 embodiment of the present invention also provides a kind of array antenna, comprises multiple above-mentioned antennas.
The antenna that the embodiment of the present invention provides and array antenna, can effectively improve the impedance bandwidth of single radiating element, improves isolation and the cross polarization ratio of radiating element; By the non-full symmetric structure of oscillator arms, make radiating element in the time of composition array antenna, still keep good isolation and cross polarization ratio; Radiating element is one-body molded, is easy to produce high conformity.
Brief description of the drawings
Fig. 1 is the vertical view of antenna of the prior art;
Fig. 2 is the perspective view of an embodiment of antenna provided by the invention;
Fig. 3 is the installation diagram of the broadband dualpolarization radiation unit of an embodiment of antenna provided by the invention;
Fig. 4 is the structural representation of the broadband dualpolarization radiation unit of another embodiment of antenna provided by the invention;
Fig. 5 is the perspective view of the location-plate of an embodiment of antenna provided by the invention;
Fig. 6 is location-plate and the fed element johning knot composition of an embodiment of antenna provided by the invention;
Fig. 7 is the structural representation of the fed element of an embodiment of antenna provided by the invention;
Fig. 8 is the vertical view of the broadband dualpolarization radiation unit of an embodiment of antenna provided by the invention.
Fig. 9 is the structural representation of an embodiment of array antenna provided by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Referring to Fig. 2, it is the perspective view of an embodiment of antenna provided by the invention.
The present embodiment provides a kind of antenna, comprises Wideband dual-polarization radiating unit and reflecting plate.As shown in Fig. 3～8, this 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 are listed as, and form the dipole of two pairs of orthogonal polarizations; Taking the diagonal of array as axle, four oscillator arms are unsymmetric structure about x ' axle and y '; Oscillator arms is hollow out quadrilateral structure.
The asymmetric design of four oscillator arms, had both ensured that impedance, isolation and the cross polarization ratio of single radiating element had bandwidth characteristic, ensured that again it still has good isolation in the time of composition array antenna.And the hollow out design of oscillator arms, has improved the impedance matching of radiating element and the performance of cross polarization ratio.
Four oscillator arms are connected with four jiaos 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 at corner cut place the strutting piece 9 corresponding with it bight connect;
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, the second oscillator arms 21, the three oscillator arms 12 and the 4th oscillator arms 22; The 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, the second through holes 23, third through-hole 14 and fourth hole 41;
The first through hole 13 is corresponding with the position of the corner cut of the first oscillator arms 11, and shape matches; The second through hole 23 is corresponding with the position of the corner cut of the second oscillator arms 21, and shape matches; Third through-hole 14 is corresponding with the position of the corner cut of the 3rd oscillator arms 12, and shape matches; Fourth hole 41 is corresponding with the position of the corner cut of the 4th oscillator arms 22, and shape matches.
Further, Wideband dual-polarization radiating unit also comprises the first conversion feeder equipment 8 and the second conversion feeder equipment 15; The first conversion feeder equipment 8 and the second conversion feeder equipment 15 are located at the bottom of strutting piece;
The 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;
The 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 form L-type probe.
The 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 form L-type probe.
Further, broadband dualpolarization radiation unit also comprises spacer 5;
The first fed element 40 and the second fed element 42 are fixed and are isolated in strutting piece 9 by spacer 5 respectively.Spacer 5 is plastic sheet.
Further, broadband dualpolarization radiation unit also comprises location-plate 6; Location-plate 6 belows are provided with first pair of projection 51 and second pair of projection 52;
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, so that the first fed element 40 and the second fed element 42 are isolated;
Four jiaos of belows of location-plate 6 are respectively provided with barb 35; In each oscillator arms, there is the location hole 34 matching 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, for hollow out designs, has been saved production cost.
Further, broadband dualpolarization radiation unit also comprises the first coaxial cable and the second coaxial cable;
The 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;
The 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: coupling feed, and the first fed element 40 and the second fed element 42 are isolated in strutting piece 9 by spacer 5 respectively, and carry out feed by the first coaxial cable and the second coaxial cable respectively; Connect feed, weld with strutting piece 9 respectively the bottom of the bottom of feeder line T1 and feeder line T2, forms 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) matching with reference column 10.Reference column 10 is fixed in circular hole, prevents from when radiating element and reflecting plate 1 are fixing swinging.
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, high conformity.
Referring to Fig. 9, it is the structural representation of an embodiment of array antenna provided by the invention.This array antenna, comprises multiple antennas; The structure of this antenna is identical with the structure of the antenna in above-described embodiment, is not described in detail at this.
The antenna that the embodiment of the present invention provides and array antenna, can effectively improve the impedance bandwidth of single radiating element, improves isolation and the cross polarization ratio of radiating element; By the non-full symmetric structure of oscillator arms, make radiating element in the time of composition array antenna, still keep good isolation and cross polarization ratio; Radiating element is one-body molded, is easy to produce high conformity.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. an antenna, is characterized in that, comprises Wideband dual-polarization radiating unit and reflecting plate; 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 are listed as, and form the dipole of two pairs of orthogonal polarizations; Taking the diagonal of described array as 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 four jiaos 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 connects in the bight of the described corner cut place strutting piece corresponding with it;
Described strutting piece is hollow structure, and the middle part of each wall of described strutting piece is provided with contour wide groove.
2. antenna as claimed in claim 1, 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 the first oscillator arms and described the 3rd oscillator arms form the first electrode couple, and described the second oscillator arms and described the 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 the first through hole is corresponding with the position of the corner cut of described the first oscillator arms, and shape matches; Described the second through hole is corresponding with the position of the corner cut of described the second oscillator arms, and shape matches; Described third through-hole is corresponding with the position of the corner cut of described the 3rd oscillator arms, and shape matches; Described fourth hole is corresponding with the position of the corner cut of described the 4th oscillator arms, and shape matches.
3. antenna 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; Described the first conversion feeder equipment and described the second conversion feeder equipment are located at the bottom of described strutting piece;
Described the first conversion feeder equipment and described the first through hole connect, and described the second conversion feeder equipment and described the second through hole connect.
4. antenna as claimed in claim 3, is characterized in that, described Wideband dual-polarization radiating unit also comprises the first fed element and the second fed element;
Described the first fed element comprises feeder line T1, feeder line T3 and feeder line T5; Feeder line T1 is vertically arranged in described the first through hole and described the 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 form L-type probe.
Described the second fed element comprises feeder line T2, feeder line T3 and feeder line T6; Feeder line T2 is vertically arranged in described the second through hole and described the 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 form L-type probe.
5. antenna as claimed in claim 4, is characterized in that, described broadband dualpolarization radiation unit also comprises spacer;
Described the first fed element and described the second fed element are fixed and are isolated in described strutting piece by described spacer respectively.
6. antenna as claimed in claim 5, is characterized in that, described broadband dualpolarization radiation unit also comprises location-plate; Described location-plate below is provided with first pair of projection and second pair of projection;
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, so that described the first fed element and described the second fed element are isolated;
Four jiaos of belows of described location-plate are respectively provided with barb; In each oscillator arms, there is the location hole matching with described barb;
Described location-plate is positioned at the top of described four oscillator arms, and the location hole clamping in the barb on described location-plate and each oscillator arms, is fixed in described four oscillator arms described location-plate.
7. antenna as claimed in claim 6, is characterized in that, described broadband dualpolarization radiation unit also comprises the first coaxial cable and the second coaxial cable;
Described the first conversion feeder equipment is provided with the first feed groove; The screen of described the first coaxial cable is welded on described the first feed groove, and the heart yearn of described the first coaxial cable is welded on the bottom of described feeder line T1;
Described the second conversion feeder equipment is provided with the second feed groove; The screen of described the second coaxial cable is welded on described the second feed groove, and the heart yearn of described the second coaxial cable is welded on the bottom of described feeder line T2.
8. antenna as claimed in claim 9, 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. antenna as claimed in claim 8, 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 multiple antennas, and described antenna is antenna as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410334094.6A CN104103894A (en) | 2014-07-14 | 2014-07-14 | Antenna and array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410334094.6A CN104103894A (en) | 2014-07-14 | 2014-07-14 | Antenna and array antenna |
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| CN104103894A true CN104103894A (en) | 2014-10-15 |
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| CN201410334094.6A Pending CN104103894A (en) | 2014-07-14 | 2014-07-14 | Antenna and array antenna |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206913A (en) * | 2015-04-22 | 2015-12-30 | 董玉良 | Antenna unit, dual-band antenna unit and antenna |
| CN106099334A (en) * | 2016-08-15 | 2016-11-09 | 深圳慧联达科技有限公司 | Ultra-wideband high frequency oscillator and device thereof |
| WO2017101215A1 (en) * | 2015-12-16 | 2017-06-22 | 江苏省东方世纪网络信息有限公司 | Omni-directional ceiling antenna |
| CN107919522A (en) * | 2016-10-05 | 2018-04-17 | 凯瑟林-沃克两合公司 | Antenna for mobile communication |
| CN108666746A (en) * | 2018-04-26 | 2018-10-16 | 国动科技南京有限公司 | A kind of integration element antenna |
| CN109149080A (en) * | 2017-06-27 | 2019-01-04 | 启碁科技股份有限公司 | Communication device |
| CN112864591A (en) * | 2020-12-30 | 2021-05-28 | 京信通信技术(广州)有限公司 | Base station, antenna and radiating element thereof |
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| CN203013922U (en) * | 2012-12-05 | 2013-06-19 | 罗森伯格（上海）通信技术有限公司 | Ultra-wideband dual polarization base station antenna radiation unit |
| CN203192944U (en) * | 2012-03-19 | 2013-09-11 | 盖尔创尼克斯有限公司 | Dual-band dual-polarized antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203192944U (en) * | 2012-03-19 | 2013-09-11 | 盖尔创尼克斯有限公司 | Dual-band dual-polarized antenna |
| CN203013922U (en) * | 2012-12-05 | 2013-06-19 | 罗森伯格（上海）通信技术有限公司 | Ultra-wideband dual polarization base station antenna radiation unit |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206913A (en) * | 2015-04-22 | 2015-12-30 | 董玉良 | Antenna unit, dual-band antenna unit and antenna |
| WO2017101215A1 (en) * | 2015-12-16 | 2017-06-22 | 江苏省东方世纪网络信息有限公司 | Omni-directional ceiling antenna |
| US10749253B2 (en) | 2015-12-16 | 2020-08-18 | Jiangsu East Century Network Information Co., Ltd. | Omnidirectional ceiling antenna |
| CN106099334A (en) * | 2016-08-15 | 2016-11-09 | 深圳慧联达科技有限公司 | Ultra-wideband high frequency oscillator and device thereof |
| CN106099334B (en) * | 2016-08-15 | 2019-09-10 | 深圳慧联达科技有限公司 | Ultra-wideband high frequency oscillator and its device |
| CN107919522A (en) * | 2016-10-05 | 2018-04-17 | 凯瑟林-沃克两合公司 | Antenna for mobile communication |
| US11362437B2 (en) | 2016-10-05 | 2022-06-14 | Telefonaktiebolaget Lm Ericsson (Publ) | Antenna for mobile communication |
| CN109149080A (en) * | 2017-06-27 | 2019-01-04 | 启碁科技股份有限公司 | Communication device |
| CN109149080B (en) * | 2017-06-27 | 2020-08-11 | 启碁科技股份有限公司 | Communication device |
| CN108666746A (en) * | 2018-04-26 | 2018-10-16 | 国动科技南京有限公司 | A kind of integration element antenna |
| CN112864591A (en) * | 2020-12-30 | 2021-05-28 | 京信通信技术(广州)有限公司 | Base station, antenna and radiating element thereof |
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