CN105244633A - Broadband different-frequency orthogonal dipole antenna - Google Patents
Broadband different-frequency orthogonal dipole antenna Download PDFInfo
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- CN105244633A CN105244633A CN201510674307.4A CN201510674307A CN105244633A CN 105244633 A CN105244633 A CN 105244633A CN 201510674307 A CN201510674307 A CN 201510674307A CN 105244633 A CN105244633 A CN 105244633A
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- dipole antennas
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Abstract
The invention provides a broadband different-frequency orthogonal dipole antenna, which comprises a metal bottom plate, two antenna units and a parasitic unit, wherein the two antenna units are crossly combined into a cross shape, and are fixed above the metal bottom plate; the two antenna units respectively work in horizontal polarization and vertical polarization; and the parasitic unit is arranged above the intersection center of the two antenna units, and is opposite to the metal bottom plate. Two pairs of broadband dipole antennas with different frequency bands are orthogonally combined to form the broadband different-frequency orthogonal dipole antenna, which has the advantages of broad frequency band, orthogonal polarization, different-frequency working and the like.
Description
Technical field
The present invention relates to antenna technology, particularly relate to a kind of broadband alien frequencies orthogonal dipole antennas.
Background technology
Along with the development of radar, the communication technology, the quantity that carrier is installed gets more and more, and brings carrier outer surface limited space and the numerous contradiction of antenna amount, strongly limit radar, the applying of the communication technology.
The method solving this contradiction has two kinds usually, and one is antenna miniaturization, reduces the installing space of single pair of antenna, thus ensures whole carrier can load abundant antenna; The current Application comparison of compact way of antenna is many, but usually can bring the reduction of performance, the performance of influential system usefulness; Another kind is antenna duplexer, realizes by bandwidth, the characteristic such as gain or directional diagram strengthening a kind of antenna the requirement that one pair of antenna can meet multiband, multisystem.And the mode of current antenna duplexer, have frequency range narrow, can not orthogonal polarization, can not the problem of alien frequencies work.
Summary of the invention
The object of the invention is to provide a kind of broadband alien frequencies orthogonal dipole antennas, is intended to solve and the mode of current antenna duplexer, have frequency range narrow, can not the problem of orthogonal polarization.
The invention provides a kind of broadband alien frequencies orthogonal dipole antennas, comprising:
Metal base plate;
Two antenna elements, combined crosswise across shape, two described antenna elements are fixed on the top of described metal base plate, and described two described antenna elements are operated in horizontal polarization and perpendicular polarization respectively;
Parasitic element, is arranged at the top of the crossing center of described two described antenna elements, relative with described metal base plate.
Above-mentioned broadband alien frequencies orthogonal dipole antennas, adopts the broadband dipole antenna Orthogonal Composite of two pairs of different frequency ranges, define one and have that frequency range is wide, orthogonal polarization, can the advantage such as alien frequencies work.Antenna is specially adapted to radar and the common antenna communicated, the working frequency range of radar radar and the working frequency range of polarization mode, the use that communicates communication and working method; Antenna has wide band feature, and it is multiplexing that any one pair of antenna can carry out frequency range, is applicable to cover the multiple application in frequency range.This antenna structure is simple, is convenient to debugging, is applicable to carrying out through engineering approaches popularization.
Accompanying drawing explanation
Fig. 1 is present pre-ferred embodiments middle width strip alien frequencies orthogonal dipole antennas plan structure schematic diagram;
Fig. 2 is present pre-ferred embodiments middle width strip alien frequencies orthogonal dipole antennas side-looking structural representation;
Fig. 3 is horizontal/vertical polarized antenna set schematic diagram in present pre-ferred embodiments shown in Fig. 2;
Fig. 4 is the structural representation of coaxial cable.
Embodiment
In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Refer to Fig. 1 and Fig. 2, present pre-ferred embodiments middle width strip alien frequencies orthogonal dipole antennas comprises: metal base plate 10, two antenna elements 20, parasitic element 30 and the first insulated support 40.
Two antenna elements 20 intersect (orthogonal) be combined into cross shape, two antenna elements 20 are fixed on the top of metal base plate 10, and each antenna element 20 forms the dipole antenna with balanced feeding; Two antenna elements 20 share the parasitic element 30 at top, share the metal base plate 10 of bottom.Parasitic element 30 is arranged at the top of the crossing center of two antenna elements 20, relative with metal base plate 10.Metal base plate 10 is directly as the reflecting plate of two antenna elements 20.
Parasitic element 30 is fixed on the top of the crossing center of two antenna elements 20 by above-mentioned first insulated support 40.Parasitic element 30 is one piece of sheet metal or metallic object, by the coupling with two antenna elements 20, expands the bandwidth characteristic of two antenna elements 20; Parasitic element 30 is fixed on the top of two antenna elements 20 by the first insulated support 40.
Particularly, two antenna element 20 similar, all have independently radio frequency output interface to export respectively; Two antennas all adopt the dipole form forming and have balanced feeding, form the directed dipole antenna of Orthogonal Composite.One of them antenna element 20 works in horizontal polarization, radiates horizontal polarization ripple; Another antenna element 20 works in perpendicular polarization, radiate vertical polarization ripple.Two antenna elements 20 all have broadband character, and working frequency range can, with frequency range, also can be different frequency range.
Refer to Fig. 3, for the antenna element 20 of horizontal polarization, it comprises the first radiant body 21, second radiant body 22 and feed assembly 23.Antenna element 20 is connected with feed assembly 23 respectively by the first radiant body 21, second radiant body 22, realizes balanced feed structure by feed assembly 23 by connected for the first radiant body 21, second radiant body 22.First radiant body 21, second radiant body 22 and metal base plate 10 combine and form wideband directional dipole antenna, and received RF signal is exported by the radio frequency interface of feed assembly 23.Particularly, the first radiant body 21 and the second radiant body 22 confront crosswise Central Symmetry are arranged; Feed assembly 23 one end is connected with radio frequency connector 24 (radio frequency interface), and radio frequency connector 24 is fixed on metal base plate 10, and feed assembly 23 other end is electrically connected respectively with the first radiant body 21 and the second radiant body 22 respectively.
First radiant body 21 and the second radiant body 22 make specific shape by the metallic plate of certain thickness and high stiffness.Wherein, consult Fig. 1, in the first radiant body 21 and the second radiant body 22, the width of one end that both are mutually close be all greater than both want away from the width of the other end.In order to prevent the first radiant body 21 and the second radiant body 22 in the distortion of end, antenna element 20 also comprises two the second insulated supports 25, first radiant body 21 and the second radiant body 22 are fixed on metal base plate 10 respectively by two the second insulated supports 25, second insulated support 25 one end is connected to a certain position of center in the middle of end of radiant body 21/22, and the other end is fixed on metal base plate 10.
Refer to Fig. 3 and Fig. 4, in the present embodiment, feed assembly 23 comprises coaxial cable 231, feed tab 232 and short branch 233.
Coaxial cable 231 comprises heart yearn 2316, (insulation) dielectric layer 2314, outer conductor 2312 and overcoat (scheming not shown) from the inside to the outside, one end of coaxial cable 231 is connected with radio frequency connector 24, and outer conductor and first radiant body 21 of the other end couple; The heart yearn 2316 of feed tab 232 one end and coaxial cable 231 couples, the other end and the second radiant body 22 with couple; Short branch 233, one end and the second radiant body 22 couple, and the other end and the second radiant body 22 couple, thus constitute the dipole antenna with balanced feed structure.
In embodiment more specifically, the outer conductor 2312 of the other end of coaxial cable 231 is coupled to the first radiant body 21 one end relative with the second radiant body 22; The other end of feed tab 232 is coupled to the second radiant body 22 one end relative with the first radiant body 21; The other end of short branch 233 is coupled to one end relative with the first radiant body 21 with the second radiant body 22.
During feed, the outer conductor 2312 (outer wall) of coaxial cable 231 has one part of current backflow, thus cause the electric current between the second radiant body 22 be connected with heart yearn 2316 and the first radiant body 21 be connected with outer conductor 2312 (outer wall) unequal, the even direct radiation of outer conductor 2312 (outer wall) electric current.Short circuit minor matters are connected with the heart yearn 2316 of coaxial cable 231 by the second radiant body 22, this makes the first radiant body 21 and the second radiant body 22 become short circuit, the non-equilibrium mould in input port short circuit, inhibit the outer wall electric current of the outer conductor 2312 of coaxial cable 231, make to become open circuit at the first radiant body 21 and the second radiant body 22 position, thus ensure the radiation of dipole antenna.The length of short circuit minor matters is corresponding with the quarter-wave of default antenna frequency, but can carry out the adjustment of length with the difference of structure, and it can work in broad frequency band.
Above-mentioned feed assembly 23, first assembles radio frequency cable (coaxial cable 231) and radio frequency connector 24; Then the outer conductor 2312 of coaxial cable 231 end and insulating medium layer 2314 (between outer conductor 2312 and heart yearn 2316) are peelled off, only leave heart yearn 2316; Slice off one section of outer conductor 2312 along the end exposing heart yearn 2316 again, retain dielectric layer 2314 and heart yearn 2316, just can obtain feed assembly 23.
With reference to Fig. 3, one end that coaxial cable 231 is connected with the first radiant body 21, its outer conductor 2312 is welding with the first radiant body 21 near the place of exposing near dielectric layer 2314, should ensure to expose the face of weld that dielectric layer 2314 exposes the first radiant body 21 completely during welding, and outer conductor 2312 exposes minimum.The ring flange that radio frequency connector 24 passes through is connected with metal base plate 10, thus completes the fixing of feed assembly 23.
Broadband of the present invention alien frequencies orthogonal dipole antennas, adopts the broadband dipole antenna Orthogonal Composite of two pairs of different frequency ranges, define one and have that frequency range is wide, orthogonal polarization, can the advantage such as alien frequencies work.Antenna is specially adapted to radar and the common antenna communicated, the working frequency range of radar radar and the working frequency range of polarization mode, the use that communicates communication and working method; Antenna has wide band feature, and it is multiplexing that any one pair of antenna can carry out frequency range, is applicable to cover the multiple application in frequency range.This antenna structure is simple, is convenient to debugging, is applicable to carrying out through engineering approaches popularization.
Because radar antenna uses perpendicular polarization usually with horizontal polarization, communication antenna usually, by meeting radar and the requirement communicated by incompatible for two pairs of wideband directional dipole antenna orthogonal systems simultaneously in the present invention; Two pairs of orthogonal antennas are designed to different working frequency range simultaneously and deal with the inconsistent of radar and communication antenna working frequency range.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a broadband alien frequencies orthogonal dipole antennas, is characterized in that, comprising:
Metal base plate;
Two antenna elements, combined crosswise across shape, two described antenna elements are fixed on the top of described metal base plate, and described two described antenna elements are operated in horizontal polarization and perpendicular polarization respectively;
Parasitic element, is arranged at the top of the crossing center of described two described antenna elements, relative with described metal base plate.
2. broadband as claimed in claim 1 alien frequencies orthogonal dipole antennas, it is characterized in that, described antenna element comprises:
First radiant body;
Second radiant body, is symmetrical arranged with the relative described crossing center of described first radiant body;
Feed assembly, one end is connected with radio frequency connector, and described radio frequency connector is fixed on described metal base plate, and the other end is electrically connected respectively with described first radiant body and described second radiant body respectively.
3. broadband as claimed in claim 2 alien frequencies orthogonal dipole antennas, it is characterized in that, described feed assembly comprises:
Coaxial cable, one end is connected with described radio frequency connector, and outer conductor and described first radiant body of the other end couple;
Feed tab, the heart yearn of one end and described coaxial cable couples, the other end and described second radiant body with couple;
Short branch, one end and described second radiant body couple, and the other end and described second radiant body couple.
4. broadband as claimed in claim 3 alien frequencies orthogonal dipole antennas, it is characterized in that, the outer conductor of the other end of described coaxial cable is coupled to described first radiant body one end relative with described second radiant body;
The other end of described feed tab is coupled to described second radiant body one end relative with described first radiant body;
The other end of described short branch is coupled to one end relative with described first radiant body with described second radiant body.
5. the broadband alien frequencies orthogonal dipole antennas as described in claim 2,3 or 4, is characterized in that, in described first radiant body and the second radiant body, the width of one end that both are mutually close be all greater than both want away from the width of the other end.
6. the broadband alien frequencies orthogonal dipole antennas as described in claim 3 or 4, is characterized in that, the length of described short branch is corresponding with the quarter-wave of default antenna frequency.
7. broadband as claimed in claim 1 alien frequencies orthogonal dipole antennas, it is characterized in that, also comprise the first insulated support, described parasitic element is fixed on the top of the crossing center of two described antenna elements by above-mentioned first insulated support.
8. the broadband alien frequencies orthogonal dipole antennas as described in claim 1 or 7, is characterized in that, described parasitic element is that metallic conductor is made.
9. broadband as claimed in claim 2 alien frequencies orthogonal dipole antennas, it is characterized in that, described antenna element also comprises two the second insulated supports, and described first radiant body and the second radiant body are fixed on described metal base plate respectively by two described second insulated supports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510674307.4A CN105244633A (en) | 2015-10-19 | 2015-10-19 | Broadband different-frequency orthogonal dipole antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510674307.4A CN105244633A (en) | 2015-10-19 | 2015-10-19 | Broadband different-frequency orthogonal dipole antenna |
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| CN105244633A true CN105244633A (en) | 2016-01-13 |
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| CN201510674307.4A Pending CN105244633A (en) | 2015-10-19 | 2015-10-19 | Broadband different-frequency orthogonal dipole antenna |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846111A (en) * | 2016-03-29 | 2016-08-10 | 北京环境特性研究所 | Array antenna for UHF scattering test |
| 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 |
| RU2679487C1 (en) * | 2018-02-26 | 2019-02-11 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") | Dipole antenna |
| CN109417219A (en) * | 2016-07-05 | 2019-03-01 | 凯瑟雷恩欧洲股份公司 | Antenna system at least one dipole shape radiator assemblies |
| RU2750029C1 (en) * | 2020-11-11 | 2021-06-21 | Федеральное государственное автономное образовательное учреждение высшего образования "Мурманский государственный технический университет" (ФГАОУ ВО "МГТУ") | Vibrator antenna |
| CN114050403A (en) * | 2021-11-19 | 2022-02-15 | 常州工学院 | Orthogonal dipole three-frequency antenna |
| RU2814795C1 (en) * | 2023-06-27 | 2024-03-04 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Томский государственный университет систем управления и радиоэлектроники" | Method of making antenna based on wire fabric |
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| CN102074791A (en) * | 2010-10-25 | 2011-05-25 | 西安电子科技大学 | Full-band wide-wave beam GPS (Global Position System) antenna |
| CN203434269U (en) * | 2013-08-13 | 2014-02-12 | 南京澳博阳射频技术有限公司 | Broadband dual-polarization antenna radiation unit and antenna |
| KR20150011939A (en) * | 2013-07-24 | 2015-02-03 | 엘에스전선 주식회사 | Dual polarized radiating element and dual polarized antenna having the same |
| CN104577323A (en) * | 2015-02-06 | 2015-04-29 | 西安电子科技大学 | Dual-frequency and dual-polarization antenna used for mobile communication base station |
| CN104685718A (en) * | 2012-10-19 | 2015-06-03 | 华为技术有限公司 | Dual band interleaved phased array antenna |
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2015
- 2015-10-19 CN CN201510674307.4A patent/CN105244633A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102074791A (en) * | 2010-10-25 | 2011-05-25 | 西安电子科技大学 | Full-band wide-wave beam GPS (Global Position System) antenna |
| CN104685718A (en) * | 2012-10-19 | 2015-06-03 | 华为技术有限公司 | Dual band interleaved phased array antenna |
| KR20150011939A (en) * | 2013-07-24 | 2015-02-03 | 엘에스전선 주식회사 | Dual polarized radiating element and dual polarized antenna having the same |
| CN203434269U (en) * | 2013-08-13 | 2014-02-12 | 南京澳博阳射频技术有限公司 | Broadband dual-polarization antenna radiation unit and antenna |
| CN104577323A (en) * | 2015-02-06 | 2015-04-29 | 西安电子科技大学 | Dual-frequency and dual-polarization antenna used for mobile communication base station |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846111A (en) * | 2016-03-29 | 2016-08-10 | 北京环境特性研究所 | Array antenna for UHF scattering test |
| CN105846111B (en) * | 2016-03-29 | 2018-11-06 | 北京环境特性研究所 | A kind of array antenna for UHF scattering tests |
| CN109417219A (en) * | 2016-07-05 | 2019-03-01 | 凯瑟雷恩欧洲股份公司 | Antenna system at least one dipole shape radiator assemblies |
| CN109417219B (en) * | 2016-07-05 | 2020-12-22 | 凯瑟雷恩欧洲股份公司 | Antenna system with at least one dipole-like radiator arrangement |
| 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 |
| RU2679487C1 (en) * | 2018-02-26 | 2019-02-11 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") | Dipole antenna |
| RU2750029C1 (en) * | 2020-11-11 | 2021-06-21 | Федеральное государственное автономное образовательное учреждение высшего образования "Мурманский государственный технический университет" (ФГАОУ ВО "МГТУ") | Vibrator antenna |
| CN114050403A (en) * | 2021-11-19 | 2022-02-15 | 常州工学院 | Orthogonal dipole three-frequency antenna |
| RU2814795C1 (en) * | 2023-06-27 | 2024-03-04 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Томский государственный университет систем управления и радиоэлектроники" | Method of making antenna based on wire fabric |
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Application publication date: 20160113 |
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