CN106207453A - A kind of defect ground decoupling arrangements for micro-strip array antenna - Google Patents
A kind of defect ground decoupling arrangements for micro-strip array antenna Download PDFInfo
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- CN106207453A CN106207453A CN201610487699.8A CN201610487699A CN106207453A CN 106207453 A CN106207453 A CN 106207453A CN 201610487699 A CN201610487699 A CN 201610487699A CN 106207453 A CN106207453 A CN 106207453A
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- microstrip array
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
- H01Q1/523—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between antennas of an array
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/005—Patch antenna using one or more coplanar parasitic elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
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Abstract
本发明提供一种用于微带阵列天线的缺陷地去耦结构，在公共接地板上设置有两个微带阵列天线阵元，两个微带阵列天线阵元之间的公共接地板上设计有凹槽结构，每个微带阵列天线阵元包括介质基板和设置在介质基板上表面的矩形辐射贴片和同轴馈电，每个微带阵列天线阵元的同轴馈电与矩形辐射贴片连接的同时与SMA内导体连接，SMA外导体与公共接地板连接，所述凹槽结构包括相对交叉设置的两组梳状缺陷地结构，每组梳状缺陷地结构包括梳柄单元和梳齿单元，第一组梳齿单元的梳齿个数与第二组梳齿单元的梳齿个数差1个。本发明不仅将天线间的耦合能量吸收，而且提高阵列天线间的隔离度，满足阵列天线的需求，而且具有设计简单、加工方便的优点。
The invention provides a defective ground decoupling structure for a microstrip array antenna. Two microstrip array antenna elements are arranged on a common ground plane, and the common ground plane between the two microstrip array antenna elements is designed With a groove structure, each microstrip array antenna element includes a dielectric substrate, a rectangular radiation patch and a coaxial feed set on the upper surface of the dielectric substrate, and the coaxial feed and rectangular radiation of each microstrip array antenna element While the patch is connected, it is connected to the SMA inner conductor, and the SMA outer conductor is connected to the common ground plate. The groove structure includes two sets of comb-shaped defective ground structures that are arranged opposite to each other, and each set of comb-shaped defective ground structures includes comb handle units and For the comb unit, the number of comb teeth of the first group of comb units differs by 1 from the number of comb teeth of the second group of comb units. The invention not only absorbs the coupling energy between the antennas, but also improves the isolation between the array antennas, meets the requirements of the array antennas, and has the advantages of simple design and convenient processing.
Description
Technical field
The present invention relates to a kind of decoupling arrangements, particularly relate to a kind of defect ground decoupling arrangements for micro-strip array antenna.
Background technology
Array antenna is widely used in radio communication field because of its high-gain and highly directive, along with device integration
Raising, the miniaturization of array antenna have also been obtained quickly development.But, the research of array antenna is all the most mutual by array element
The restriction of the bottlenecks such as coupling, between bay, the generation of surface current materially increases the degree of coupling, seriously dislikes
Change the characteristic of array antenna.Therefore, how in miniaturization mobile terminal device layout multiple antenna and realize each antenna it
Between work alone, orthogonal performance becomes the place of key of array antenna research.As can be seen here, the height of array antenna every
From research, current and future communications industry development is significant.
In recent years, the method for micro-strip array antenna uncoupling is got more and more, if H.S.Farahani et al. was in 2010
Propose a kind of between micro-strip array antenna array element, to add small-sized electromagnetic bandgap structure, microstrip antenna can be made to exist by this structure
In resonant frequency, isolation increases by tens dB, is greatly improved the performance of array antenna.S.Farsi et al., in 2012, carries
Go out a kind of simple micro-strip U-shaped structure, by loading this element between array antenna array element, can absorb between microstrip antenna
Coupling increases isolation higher between antenna, but is because the loading of U-shaped unit, and the radiation characteristic of antenna can be disturbed, sky
Linearly can be able to have a certain impact.R.Hafezifard et al. was in 2016, it is proposed that one is used for reducing micro-strip array antenna
Between coupling metamaterial structure, by this structure being positioned between microstrip antenna element, can make antenna in resonant frequency
Isolation improve nearly 20dB, substantially improve the performance of micro-strip array antenna.But certainly both the above electro-magnetic bandgap
With metamaterial unit, there is more complicated structure, have the highest being designed and manufactured as originally.And defect ground structure is in terms of uncoupling
Having well effect, defect ground structure is i.e. to cut cycle or aperiodic groove on the ground level of transmission line, to increase
Add equivalent capacity and the equivalent inductance of microstrip transmission line, thus change CURRENT DISTRIBUTION to such an extent as to improve the performance of transmission line.Pass through
Etching defect ground structure on common ground plate, reduces the coupling between array antenna, and then improves isolation between antennae, make battle array
Array antenna system reaches more preferable using effect.
Summary of the invention
The invention aims to reduce and couple, improve simultaneously the target of isolation between array antenna and a kind of use is provided
Defect ground decoupling arrangements in micro-strip array antenna battle array.
The object of the present invention is achieved like this: is provided with two micro-strip array antenna array elements on common ground plate, and two
Being designed with groove structure on common ground plate between individual micro-strip array antenna array element, each micro-strip array antenna array element includes being situated between
Matter substrate and be arranged on rectangular radiation patch and the coaxial feed of medium substrate upper surface, each micro-strip array antenna array element same
Axle feed is connected with SMA inner wire while being connected with rectangular radiation patch, and SMA outer conductor is connected with common ground plate, described
Groove structure includes the most arranged in a crossed manner two group pectination defect ground structure, often group pectination defect ground structure include comb handle unit and
Comb unit, the comb number of first group of comb unit and the comb number of second group of comb unit differ from 1.
Present invention additionally comprises so some architectural features:
1. the distance between each comb in comb unit is equal, and the width of the width of comb and comb handle unit is can
Adjust.
Compared with prior art, the invention has the beneficial effects as follows: the present invention uses defect ground structure to reduce microstrip array sky
The effect of intercoupling between linear array unit, thus improve the isolation of array antenna.Namely the present invention uses the method decoupling of defect ground
Close, the main comb shape groove defect ground structure by carving pair of cross on array antenna common ground plate, reduce array antenna
Between the effect of intercoupling, reach higher isolation.Intersection comb shape defect ground decoupling structure designed by the present invention, not only
By the coupling energy absorption between antenna, and improve the isolation between array antenna, meet the demand of array antenna, and have
Design is simple, compact conformation, is etched by the novel line of rabbet joint, have easy to process, with low cost on common ground plate
Advantage.Two interdigitated defect ground structures that the present invention is arranged change feed line and are coupled to the exciting current of paster, effectively
Reduce antenna side lobe level, absorb from the coupling energy between two antenna elements to reach lower coupling and high isolation simultaneously
The effect of degree, does not interferes with two antenna element radiation characteristics so that it is have good radiation characteristic simultaneously.Use coaxial feed side
Two antenna elements are fed by formula, make antenna be easy to Integrated design.Present invention only requires the comb by regulating comb unit
Width, the width of comb handle unit, comb tooth spacing from etc. parameter can realize the uncoupling effect of different resonant frequency, be greatly saved
The optimization time.
Accompanying drawing explanation
Fig. 1 is the structural representation overlooking direction of the present invention；
Fig. 2 is the structural representation of the main apparent direction of the present invention；
Fig. 3 is groove structure namely the structure chart on intersection comb shape defect ground of the present invention；
Fig. 4 is the analogous diagram of the present invention.
Detailed description of the invention
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings.
Embodiment one: combine Fig. 1 to Fig. 3, the present invention includes being formed at medium substrate lower surface common ground plate 101, on
Surface rectangle radiation patch 201 and 202, two coaxial feeds 301 and 302, common ground plate 101 is provided with groove structure,
Groove structure includes top comb handle unit 1011, four, top comb unit 1012, lower section comb handle unit 1013 and lower section comb
Unit 1014, and unit is to be etched on common ground plate, the coupling being used for reducing between microstrip antenna array, simultaneously improve every
From degree.Comb and lower section comb unit 1014 comb of top comb unit 1012 cross one another, and constitute intersection decoupling structure.
Rectangular radiation patch 201 and 202 is corresponding to the centrage being symmetrical in medium substrate on Rectangular Enclosure with Participating Media substrate.Two coaxial feeds
301 and 302 are connected with rectangular radiation patch 201,202 and SMA inner wire respectively by feeding transmission line.Specifically two
Coaxial feed 301 and 302 is connected by transmission line, makes two rectangular radiation patch 201 and 202 be connected with SMA inner wire simultaneously,
SMA outer conductor is connected with common ground plate 101.
Embodiment two: based on above-described embodiment, the distance between each comb of the comb unit of the present invention is equal.According to
Defect ground correlation theory, design meets the cellular construction reducing coupling, improving isolation, uses top-bottom cross radiation, and comb
Spacing is equal, and upper and lower comb handle unit is symmetrical about center of antenna, it is simple to designs and manufactures.The most a size of: top comb handle list
The length and width of comb of unit 1101 can be designed according to its uncoupling frequency, the length and width of the comb of top comb unit 1102 with
Top comb handle unit cooperates, and to realize uncoupling purpose, the length and width of comb and upper and lower comb tooth spacing are from adjusting
Whole to meet necessary requirement, the comb shape defect ground structure that intersects can set according to Practical Project demand apart from medium substrate edge
Meter, to meet fixing and antenna uncoupling demand.By the adjustment of intersection comb shape defect ground structure, regulation comb tooth width, comb handle
Width, comb tooth spacing from etc. parameter realize the uncoupling effect of different resonant frequency.
Embodiment three: based on above-described embodiment, further, the medium substrate 401 of the present invention be dielectric constant be 4.4
FR4 medium, to reduce design cost, the size of medium substrate uses miniaturization technology design, namely the length of medium substrate 401
It is designed according to Miniaturized Microstrip Antennas principle with width.Metal ground plate 101 under medium substrate uses copper product.Medium
Upper surface of base plate rectangular radiation patch 201 and 202 uses copper product.
The present invention's is a kind of based on the micro-strip array antenna that decouples of defect ground, uses defect ground to realize uncoupling, as long as selecting
Select suitably sized, just can be substantially reduced between antenna coupling, improve isolation simultaneously.As shown in Figure 4, the one of the present invention based on
The micro-strip array antenna of defect ground decoupling, selects reasonable size so that the isolation between antenna array improves nearly 30dB.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610487699.8A CN106207453B (en) | 2016-06-28 | 2016-06-28 | A Defective Ground Decoupling Structure for Microstrip Array Antenna |
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|---|---|---|---|
| CN201610487699.8A CN106207453B (en) | 2016-06-28 | 2016-06-28 | A Defective Ground Decoupling Structure for Microstrip Array Antenna |
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| CN106207453A true CN106207453A (en) | 2016-12-07 |
| CN106207453B CN106207453B (en) | 2019-09-27 |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532248A (en) * | 2016-12-09 | 2017-03-22 | 桂林电子科技大学 | Ultra-compacted microstrip patch array antenna |
| CN106785423A (en) * | 2017-01-09 | 2017-05-31 | 成都信息工程大学 | 5G communication high isolation omni-directional array antennas |
| CN107240770A (en) * | 2017-05-10 | 2017-10-10 | 哈尔滨工程大学 | A kind of periodic spatial wave resistance for micro-strip antenna array keeps off decoupling arrangements |
| CN107634332A (en) * | 2017-09-13 | 2018-01-26 | 电子科技大学 | A Dual Microstrip Array Antenna with Reduced Coupling |
| CN109164608A (en) * | 2018-09-25 | 2019-01-08 | 京东方科技集团股份有限公司 | The control method of phase shifter, antenna and phase shifter |
| EP3442076A1 (en) * | 2017-08-10 | 2019-02-13 | Microelectronics Technology Inc. | Antenna apparatus and circuit board thereof |
| CN109509974A (en) * | 2018-12-22 | 2019-03-22 | 昆山恩电开通信设备有限公司 | A kind of ultralow section high-performance dual-polarization radiation unit |
| CN110176671A (en) * | 2019-05-20 | 2019-08-27 | 深圳市信维通信股份有限公司 | A kind of millimeter wave array antenna |
| CN111129677A (en) * | 2018-10-31 | 2020-05-08 | 康普技术有限责任公司 | Isolator for antenna system and related antenna system |
| CN111969312A (en) * | 2020-08-14 | 2020-11-20 | 中国人民解放军空军工程大学 | Antenna array |
| CN111987458A (en) * | 2020-07-30 | 2020-11-24 | 南京理工大学 | Decoupling Structure Between Adjacent Rectangular Patches in Dual Frequency Antenna Array |
| CN112421231A (en) * | 2020-10-23 | 2021-02-26 | 普联国际有限公司 | A high isolation antenna |
| CN112510367A (en) * | 2020-10-19 | 2021-03-16 | 西安朗普达通信科技有限公司 | Resonant decoupling chip |
| WO2021073089A1 (en) * | 2019-10-18 | 2021-04-22 | 东南大学 | Broadband integrated balanced-to-unbalanced converter and antenna unit |
| CN118783115A (en) * | 2024-09-11 | 2024-10-15 | 南京中网卫星通信股份有限公司 | An H-type decoupling structure between circularly polarized patch antennas |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532248A (en) * | 2016-12-09 | 2017-03-22 | 桂林电子科技大学 | Ultra-compacted microstrip patch array antenna |
| CN106785423A (en) * | 2017-01-09 | 2017-05-31 | 成都信息工程大学 | 5G communication high isolation omni-directional array antennas |
| CN106785423B (en) * | 2017-01-09 | 2023-09-01 | 成都信息工程大学 | 5G Communication High Isolation Omnidirectional Array Antenna |
| CN107240770B (en) * | 2017-05-10 | 2019-11-26 | 哈尔滨工程大学 | A kind of periodic spatial wave resistance gear decoupling arrangements for micro-strip antenna array |
| CN107240770A (en) * | 2017-05-10 | 2017-10-10 | 哈尔滨工程大学 | A kind of periodic spatial wave resistance for micro-strip antenna array keeps off decoupling arrangements |
| EP3442076A1 (en) * | 2017-08-10 | 2019-02-13 | Microelectronics Technology Inc. | Antenna apparatus and circuit board thereof |
| CN109390683A (en) * | 2017-08-10 | 2019-02-26 | 台扬科技股份有限公司 | Antenna device and circuit board thereof |
| CN107634332A (en) * | 2017-09-13 | 2018-01-26 | 电子科技大学 | A Dual Microstrip Array Antenna with Reduced Coupling |
| CN109164608A (en) * | 2018-09-25 | 2019-01-08 | 京东方科技集团股份有限公司 | The control method of phase shifter, antenna and phase shifter |
| CN111129677A (en) * | 2018-10-31 | 2020-05-08 | 康普技术有限责任公司 | Isolator for antenna system and related antenna system |
| CN111129677B (en) * | 2018-10-31 | 2022-10-28 | 康普技术有限责任公司 | Isolator for antenna system and related antenna system |
| CN109509974A (en) * | 2018-12-22 | 2019-03-22 | 昆山恩电开通信设备有限公司 | A kind of ultralow section high-performance dual-polarization radiation unit |
| CN110176671A (en) * | 2019-05-20 | 2019-08-27 | 深圳市信维通信股份有限公司 | A kind of millimeter wave array antenna |
| CN110176671B (en) * | 2019-05-20 | 2024-06-11 | 深圳市信维通信股份有限公司 | Millimeter wave array antenna |
| WO2021073089A1 (en) * | 2019-10-18 | 2021-04-22 | 东南大学 | Broadband integrated balanced-to-unbalanced converter and antenna unit |
| CN111987458A (en) * | 2020-07-30 | 2020-11-24 | 南京理工大学 | Decoupling Structure Between Adjacent Rectangular Patches in Dual Frequency Antenna Array |
| CN111969312A (en) * | 2020-08-14 | 2020-11-20 | 中国人民解放军空军工程大学 | Antenna array |
| CN112510367A (en) * | 2020-10-19 | 2021-03-16 | 西安朗普达通信科技有限公司 | Resonant decoupling chip |
| CN112510367B (en) * | 2020-10-19 | 2023-05-30 | 西安朗普达通信科技有限公司 | A resonant decoupling chip |
| CN112421231A (en) * | 2020-10-23 | 2021-02-26 | 普联国际有限公司 | A high isolation antenna |
| CN118783115A (en) * | 2024-09-11 | 2024-10-15 | 南京中网卫星通信股份有限公司 | An H-type decoupling structure between circularly polarized patch antennas |
| CN118783115B (en) * | 2024-09-11 | 2024-12-10 | 南京中网卫星通信股份有限公司 | An H-type decoupling structure between circularly polarized patch antennas |
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