CN101183744B - Patch antenna with non-integrity bandgap structure - Google Patents
Patch antenna with non-integrity bandgap structure Download PDFInfo
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- CN101183744B CN101183744B CN2007101783935A CN200710178393A CN101183744B CN 101183744 B CN101183744 B CN 101183744B CN 2007101783935 A CN2007101783935 A CN 2007101783935A CN 200710178393 A CN200710178393 A CN 200710178393A CN 101183744 B CN101183744 B CN 101183744B
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Abstract
The invention relates to an incomplete bandgap patch antenna. A plurality of small square patches called cycle unit without feeding are arranged on the metal surface of the antenna radiation patch, so as to form an incomplete nXn square matrix. The incompleteness of the matrix refers to the center of the nXn square matrix without the cycle unit. The vacant space is occupied by feeding radiation patches. The incomplete bandgap cycle units around the radiation patch are sufficient and simultaneously the edge of earthing board throws off a square loop with a certain breadth, which forms an incomplete earthing board structure. The invention had the advantage that the invention can effectively improve the low elevation angle gain property of traditional patch antenna.
Description
Technical field
The present invention relates to a kind of paster antenna, particularly a kind of paster antenna that has non-integrity bandgap structure.
Background technology
Microstrip antenna is made through photoetching or etch process by medium sheet material usually.Medium sheet material is made up of three parts usually: middle is the thicker medium substrate (being made by polytetrafluoroethylene glass fibre or ceramic powder etc. usually) of one deck, and skin is the metal skin on two sides (being generally copper).On a metal skin, carve a square (or rectangle, circle), all the other metals partly are removed (promptly exposing dielectric material), the square-shaped metal sheet that then stays is the radiation patch in the microstrip antenna, and the another side metal skin promptly is the ground plate of microstrip antenna.If adopt the microstrip antenna of complete square patch design to be generally linear polarized antenna, but with radiation patch surface fluting or cut away two angles, then Ci Shi microstrip antenna also can be used as circular polarized antenna and uses.It is respectively microstrip line, coaxial probe, actinal surface coupling, nearly coupling that the feeding classification of microstrip antenna has a variety of, the most frequently used four kinds.In some of microstrip antenna used,, require to spend in 90 degree scopes and keep well covering at azimuth 360 degree, the elevation angle 5 as airborne satellite navigation aerial system.This low elevation gain performance to antenna has proposed very high requirement, and conventional microstrip antenna can not well address this problem.
Electromagnetic bandgap structure is a kind of dielectric material periodic structure that period profile is formed in another kind of dielectric material.Can suppress the surface wave in substrate, propagated by radiation element excitation like this, increase antenna and be coupled to the electromagenetic wave radiation power in space.Not only can improve the efficient of antenna to the inhibition of surface wave, and can weaken by surface wave diffraction and sidelobe level of producing around the antenna substrate.But traditional electromagnetic bandgap structure can not be satisfactory to the effect of improving of the low elevation angle of antenna performance.Simultaneously, traditional electromagnetic bandgap structure need doping other materials or punching (being called substrate punching type) in dielectric material, make and analyze all more complicated (referring to Zhu Fangming, the woods youth. the progress of electromagnet (photon) crystal paster antenna. the electric wave science journal, in April, 2002, the 17th the 2nd phase of volume).Although in 1998, a kind of electromagnet bandgap structure at microstrip line is suggested (referring to Yasushi Horri, Makoto Tsutsumi.Harmonic control by photonic band-gap onmicrostrip patch antenna.IEEE Microwave and Guided wave Letters, 1999,9 (1); 13～15), it need not punch on medium substrate, only need on grounding plate, to etch periodic structure (being called the high impedance surface type), just can realize the performance of photonic crystal, this greatly reduces the difficulty of work, but this kind electro-magnetic bandgap also is far from being enough to the improvement that antenna hangs down elevation angle performance.
Summary of the invention
Technology of the present invention is dealt with problems: overcome the deficiencies in the prior art, a kind of paster antenna that has non-integrity bandgap structure that can improve the low elevation angle of antenna performance is provided.
Technical scheme of the present invention: a kind of paster antenna that has non-integrity bandgap structure, the centre is one deck medium substrate, skin is the metal skin on two sides, one side is the aerial radiation veneer, another side is a ground plate, its characteristics are: on the metal covering at described aerial radiation paster place, the square little paster of making some not feeds is called periodic unit, the square block battle array of forming incomplete n * n, so-called imperfect battle array refers to that the core of the square block battle array of n * n do not place periodic unit, and the position that is available is had the radiation card sheet of feed to replace.
When counting m 〉=5 around the non-integrity bandgap periodic unit of radiation patch, simultaneously the ground plate edge is removed the Q-RING of certain width.
The principle of the invention: the non-integrity bandgap structure among the present invention, both be different from traditional substrate punching type, also be different from the high impedance surface type.It is on the metal covering at aerial radiation paster place, uses the method identical with preparing radiation patch, and the square little paster of making some not feeds is called periodic unit, forms the square block battle array of an incomplete n * n.The core that so-called imperfect battle array refers to the square block battle array of this n * n is not placed periodic unit, and the position that is available is had the radiation card sheet of feed to replace.Like this, when electromagnetic wave by feed system (for example feed microstrip line, coaxial cable feed) when being injected in the radiation patch, when a part of electromagenetic wave radiation that radiation patch produces its resonance was in free space (air of antenna system top), another part electromagnetic wave was delivered in the radiation patch square periodic unit on every side via dielectric-slab.Therefore, although periodic unit not by feed, still has electromagnetic wave to be radiated in the free space via them.Because the low elevation gain of microstrip antenna system is exactly dielectric-slab top and near the gain of dielectric-slab position, so this part electromagnetic wave that is radiate by periodic unit has improved the low elevation gain performance of antenna system just.
The present invention is with the existing advantage of comparing: because the present invention is on the conventional patch antenna basis, periodicity square chip unit additional identical with radiation patch coplane and material on plane, radiation patch place (does not carry out feed to it, number can increase and decrease according to concrete application conditions), improved the low elevation gain performance of conventional patch antenna; When around the periodic unit number of radiation patch (when antenna was operated in the X frequency range, the m value was 5) more for a long time, the ground plate edge can be etched away the Q-RING of certain width simultaneously, form imperfect floor panel structure.Like this, the two sides metal skin of dielectric-slab all has covering dielectric-slab part incessantly.The dielectric-slab that this part is exposed and the operation principle of dielectric antenna are similar, produce radiation equally, therefore can further improve the low elevation gain of antenna system.
Description of drawings
Fig. 1 has the front elevation (coaxial feeding) of the microstrip antenna of non-integrity bandgap structure for the present invention;
Fig. 2 has the back view (coaxial feeding) of the microstrip antenna of non-integrity bandgap structure for the present invention;
Fig. 3 has the side view (coaxial feeding) of the microstrip antenna of non-integrity bandgap structure for the present invention;
Fig. 4 is for taking imperfect ground plate structure as the present invention, the antenna back view when the metal ground plate edge that is about to paster antenna removes the Q-RING of certain width;
The present invention of front schematic view when Fig. 5 is 5 circles (being m=5) for to(for) the non-integrity bandgap periodic unit around radiation patch;
Fig. 6 is in ° plane, φ=0, traditional antenna and simple dextrorotation gain situation (frequency the is an X frequency range value) schematic diagram that adds the non-integrity bandgap structure antenna;
Fig. 7 is in ° plane, φ=0, the dextrorotation of traditional antenna and antenna of the present invention gain situation (frequency is an X frequency range value) schematic diagram.
Embodiment
As shown in Figure 1, 2, 3, structure of the present invention comprises: middle is medium substrate, skin is the metal skin on two sides, one side is called periodic unit for the square little paster that adopts the method identical with the traditional radiation patch of preparation to make some not feeds, the square block battle array of forming incomplete n * n, so-called imperfect battle array refers to that the core of the square block battle array of n * n do not place periodic unit, and the position that is available is had the radiation card sheet of feed to replace.N is usually greater than 1.
Shown in Fig. 4,5,6, the present invention simultaneously is more at periodic structure, and promptly the m value is bigger, as m 〉=5 constantly, the metal ground plate edge of paster antenna is removed the Q-RING of certain width, forms imperfect floor panel structure.The general of m value determines that method is: under concrete engine request, investigate its performance by simulation software (as Ansoft HFSS), whether decision needs additional imperfect floor panel structure.
Shown in Fig. 6,7, simulation result of the present invention shows, in L frequency range and X frequency range, the low elevation angle performance of paster antenna improved significantly.For example in the X frequency range, 70 degree low elevation gains of the antenna of additional 5 circle non-integrity bandgap structures on average exceed about 2dB than conventional patch antenna; And the antenna that further adopts imperfect ground plate structure on average improves about 1dB than the antenna gain under the same conditions of simple employing additional cycle radiating element.
Claims (2)
1. paster antenna that has non-integrity bandgap structure, the centre is one deck medium substrate, skin is the metal skin on two sides, one side is the aerial radiation veneer, another side is a ground plate, it is characterized in that: on the metal covering at described aerial radiation paster place, the square little paster of making some not feeds is called periodic unit, the square block battle array of forming incomplete n * n, so-called imperfect battle array refers to that the core of the square block battle array of n * n do not place periodic unit, and the position that is available is had the radiation card sheet of feed to replace; When counting m 〉=5 around the non-integrity bandgap periodic unit of radiation patch, simultaneously the ground plate edge is removed the Q-RING of certain width.
2. a kind of paster antenna that has non-integrity bandgap structure according to claim 1, it is characterized in that: described n is greater than 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101783935A CN101183744B (en) | 2007-11-29 | 2007-11-29 | Patch antenna with non-integrity bandgap structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101783935A CN101183744B (en) | 2007-11-29 | 2007-11-29 | Patch antenna with non-integrity bandgap structure |
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| Publication Number | Publication Date |
|---|---|
| CN101183744A CN101183744A (en) | 2008-05-21 |
| CN101183744B true CN101183744B (en) | 2011-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101783935A Expired - Fee Related CN101183744B (en) | 2007-11-29 | 2007-11-29 | Patch antenna with non-integrity bandgap structure |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101740870B (en) * | 2009-12-28 | 2013-04-24 | 中国电子科技集团公司第二十六研究所 | Miniaturized single feed point dual-frequency and dual-polarization microstrip antenna |
| CN103066395B (en) * | 2011-10-20 | 2016-01-20 | 西北工业大学 | Based on the low RCS microstrip antenna of complete absorber |
| CN102820548A (en) * | 2012-08-03 | 2012-12-12 | 深圳光启创新技术有限公司 | Low pass wave-transmitting material and antenna housing and antenna system of low pass wave-transmitting material |
| KR101609216B1 (en) * | 2014-10-23 | 2016-04-05 | 현대자동차주식회사 | Antenna, circular polarization patch type antenna and vehicle having the same |
| CN106921049A (en) * | 2017-02-28 | 2017-07-04 | 山东大学 | Sub-wavelength cavity antenna based on double-layer magnetic single-negative material |
| CN107181056B (en) * | 2017-05-16 | 2022-08-30 | 叶云裳 | Microwave attenuation type GNSS measurement type antenna and equipment |
| CN107403994A (en) * | 2017-06-10 | 2017-11-28 | 西安电子科技大学 | A kind of low section wide band high-gain omnidirectional surface-wave antenna for blocking super surface loading |
| US10886618B2 (en) | 2018-03-30 | 2021-01-05 | Samsung Electro-Mechanics Co., Ltd. | Antenna apparatus and antenna module |
| TWI718599B (en) * | 2019-07-24 | 2021-02-11 | 台達電子工業股份有限公司 | Communication device |
| CN110970722A (en) * | 2019-12-20 | 2020-04-07 | 华进半导体封装先导技术研发中心有限公司 | Low-profile broadband patch antenna structure applied to 5G millimeter wave wireless communication |
| CN112768911A (en) * | 2020-12-29 | 2021-05-07 | 中山大学 | Rectangular patch array staggered super-surface antenna |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040065683A (en) * | 2003-01-15 | 2004-07-23 | 전자부품연구원 | Embedded antenna by the photonic bandgap structure |
| CN1906809A (en) * | 2003-11-27 | 2007-01-31 | 科学研究国家中心 | Configurable and orientable antenna and corresponding base station |
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2007
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040065683A (en) * | 2003-01-15 | 2004-07-23 | 전자부품연구원 | Embedded antenna by the photonic bandgap structure |
| CN1906809A (en) * | 2003-11-27 | 2007-01-31 | 科学研究国家中心 | Configurable and orientable antenna and corresponding base station |
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| CN101183744A (en) | 2008-05-21 |
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