CN103078180A - High-gain high-efficiency planar antenna adopting grid radiator - Google Patents
High-gain high-efficiency planar antenna adopting grid radiator Download PDFInfo
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- CN103078180A CN103078180A CN2012105600563A CN201210560056A CN103078180A CN 103078180 A CN103078180 A CN 103078180A CN 2012105600563 A CN2012105600563 A CN 2012105600563A CN 201210560056 A CN201210560056 A CN 201210560056A CN 103078180 A CN103078180 A CN 103078180A
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Abstract
The invention relates to a high-gain high-efficiency planar antenna adopting a grid radiator. The high-gain high-efficiency planar antenna adopting the grid radiator comprises a feeding layer, a coupling layer, a resonant cavity layer and a radiation layer, wherein the feeding layer, the coupling layer, the resonant cavity layer and the radiation layer are successively arranged along the electromagnetic wave transmission direction; the radiation layer comprises a plurality of radiation units; each radiation unit comprises a gird radiator; and each gird radiator comprises four gird side walls and a radiating slot oppositely arranged with each grid radiator. According to the high-gain high-efficiency planar antenna adopting the grid radiator, which is disclosed by the invention, the radiation layer with the grid radiators is adopted, electromagnetic wave enters coupling holes from feeding ports by T-shaped wave, enters the resonant cavity under the step action in coupling holes and enters the grid radiators via the radiating slots in the resonant cavity, and the electromagnetic wave is radiated out via the grid radiators. According to the high-gain high-efficiency planar antenna adopting the grid radiator, the thinking model of the traditional planar antenna design structure is broken through, so that the whole planar antenna has the advantages of compact structure and high gain, the technical requirements of high efficiency, big band width and small size of the traditional satellite planar antenna are realized, and the efficiency of the planar antenna is improved by more than 85%.
Description
Technical field
The present invention relates to a kind of high gain and high efficiency plate aerial that adopts the grid radiator, belong to the technical field of satellite communication plate aerial.
Background technology
The advantage such as that plate aerial has is lightweight, volume is little, occupy little space, windage is little, efficient is high, plate aerial has higher efficient with respect to the antenna of other forms such as parabolic antenna, it is higher to gain, volume is little, but the efficient of plate aerial is between 75%～80% at present, from the difficult efficient 80% that breaks through of technological layer, to realize higher efficient.
Existing flat plate antenna structure is various, but most technical conditions that only satisfy short-range communication:
For example, Chinese patent application CN101752655A discloses a kind of plate aerial, comprises a substrate, a plurality of antenna body and a metal level.Described a plurality of antenna body is arranged on a surface of substrate, and metal level is arranged on another surface of substrate.Metal level has a plurality of grooves, interts respectively between described a plurality of antenna bodies.Described a plurality of antenna body is partly corresponding to metal level, and launches simultaneously and receiving electromagnetic signals in order to the communication system that cooperation has a plural multi-path transmission.But the operating frequency of this patent application is lower: 2.4GHz, although small volume, the gain of whole plate aerial is not high, only satisfies the closely requirement of signal transmission in the practical application, and application is limited.
For example, Chinese patent application CN101005156 discloses a kind of flat plate antenna of high gain wide band, in order to solve the problem that can't apply to high-gain broadband on the traditional antenna structure, plate aerial of the present invention comprises microwave base plate, has first surface and second surface; The first symmetric form radiating element is disposed on this first surface, and this first symmetric form radiating element has the first Department of Radiation and the second Department of Radiation; The second symmetric form radiating element is disposed on this second surface, and this second symmetric form radiating element has the 3rd Department of Radiation and the 4th Department of Radiation; And at least one linkage unit, connect this microwave base plate and reflecting plate.Wherein the end of this first Department of Radiation, this second Department of Radiation, the 3rd Department of Radiation and the 4th Department of Radiation adopts the method for designing of step structure.By flat plate antenna structure design of the present invention, can realize the purpose of high-gain broadband.The described plate aerial volume of this patent is little, it is roomy to be with, but in-plant communication requirement is only satisfied in himself gain, for the telecommunication gain or not; And this patent also is unfavorable for organizing battle array to realize higher gain.
For example, Chinese patent CN101483271 discloses a kind of plate aerial, comprises: a dielectric layer, a radiation metal layer and a ground metal layer.This dielectric layer is made by insulating material, has a upper surface, a lower surface and a perforation.This radiation metal layer is coated on the upper surface of this dielectric layer, has one first lamellar body, corresponding with this perforation first perforation, and first convex extension part of being extended in this perforation by the first perforation periphery of this first lamellar body.This ground metal layer is coated on the lower surface of the medium layer, have one second lamellar body, corresponding with this perforation second perforation, and second convex extension part of being extended in this perforation by the second perforation periphery of this second lamellar body, and this first convex extension part contacts in this perforation with this second convex extension part, this radiation metal layer is formed with this ground metal layer be electrically connected.Although the gain of the plate aerial described in this patent is higher, fabrication design is simple, and bandwidth is narrower, uses the microwave-medium plate efficiency low.
For example, Chinese patent CN101640309 discloses a kind of flat plate antenna structure, comprises the first sheet metal, intermediate layer, becket and the second sheet metal.Wherein the intermediate layer comprises the first hole, and the intermediate layer is arranged on the first sheet metal and with the first sheet metal and links; Becket passes the first hole and the first sheet metal links; And the second sheet metal comprises the second hole, and the second sheet metal and becket link, and the second sheet metal links with the first sheet metal, and intermediate layer and becket are by the first sheet metal and the coating of the second sheet metal.Whereby, the second sheet metal can electrically conduct by becket and the first sheet metal, forms resonant cavity between the first sheet metal and the second sheet metal, and by the characteristic of the diameter adjustable antenna that changes the first hole and becket.The described plate aerial design debug of this patent is comparatively simple, but its complex structure is difficult to processing, and it is lower to gain, and has used dielectric-slab efficient low.
For example, Chinese patent CN101719596A discloses and the invention provides a kind of single-feed source periodically arranged groove slot panel antenna.The groove structure of arranging of some cycles that this antenna is loaded by ground plate and gap feed source both sides forms, and the distance between slit and adjacent trenches is less than the groove cycle.Different from traditional period groove structure radiation mechanism, the electric field at groove place is opposite with the electric field phase at place, slit, can not see the groove place as source of secondary radiation again.At this moment, antenna surface has produced electromagnetic viscosimeter pattern-two an adjacent trenches integral body of another kind of novelty as a secondary radiation source, to the space radiation energy.It is compacter that this new antenna not only has structure, and design is characteristics more flexibly, and the conventional groove slot antenna identical with the groove number compared, and H face compression angle of the present invention is less, and antenna gain also improves.The more common antenna size of the described plate aerial of this patent is little, and gain is high, but design debug is complicated.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of high gain and high efficiency plate aerial that adopts the grid radiator.
Technical scheme of the present invention is as follows:
A kind of high gain and high efficiency plate aerial that adopts the grid radiator comprises the feed layer, coupling layer, resonant cavity layer and the radiating layer that set gradually according to the Electromagnetic Wave Propagation direction; Described radiating layer comprises a plurality of radiating elements, comprises the grid radiator in each radiating element, and described each grid radiator comprises at the bottom of the rectangular grid sidewall and grid in four sidewall besieged cities, be provided with radiating slot at the bottom of described grid.
Preferred according to the present invention, interior long L=20mm, the inner width W=20mm of described each grid radiator, interior high H=8mm, grid base thickness h=1mm; The long FL=12mm of described radiating slot, wide FW=2mm.
Preferred according to the present invention, described each radiating element comprises 16 grid radiators, and described 16 grid radiators are arranged on the described radiating layer according to the arrangement mode of 4 row * 4 row.
Preferred according to the present invention, described resonant cavity layer comprises a plurality of RSPUDTcells, and described each RSPUDTcell comprises 4 resonant cavitys, and described 4 resonant cavitys are arranged on the described resonant cavity layer according to the arrangement mode of 2 row * 2 row; Described each resonant cavity aligns with 4 grid radiators on the described radiating layer.
Preferred according to the present invention, described coupling layer comprises a plurality of coupling units, and described each coupling unit comprises 4 coupling apertures, and described 4 coupling apertures are arranged on the described coupling layer according to the arrangement mode of 2 row * 2 row; Described each coupling aperture aligns with 1 resonant cavity on the described resonant cavity layer.
Preferred according to the present invention, described feed layer comprises a plurality of feed element, and each feed element comprises 1 feeding network, and described feeding network aligns with 1 coupling unit on the described coupling layer.
Preferred according to the present invention, feeding network in described each feed element comprises the hybrid-T of 3 mutual cascades, be provided with 4 coupling slots on described 2 hybrid-Ts therein, be provided with the feed mouth at another hybrid-T, described 4 coupling slots are alignd with 4 coupling apertures on the described coupling unit respectively.
Advantage of the present invention is
Plate aerial of the present invention adopts the radiating layer with grid radiator, electromagnetic wave enters coupling aperture by the feed mouth through hybrid-T, effect at coupling aperture process step enters resonant cavity, enter the grid radiator through radiating slot in resonant cavity, described electromagnetic wave radiate by the grid radiator.The present invention breaks the thoughtcast of existing plate aerial project organization, design the satellite plate aerial of unique texture of the present invention through a large amount of experiment simulations, make compact conformation, the gain of whole plate aerial high, realized the specification requirement of existing satellite plate aerial high efficiency, the large and small size of bandwidth, the efficient raising of its plate aerial reaches more than 85%.
Description of drawings
Fig. 1 is divergent structure schematic diagram of the present invention;
Fig. 2 is the structural representation of radiating layer of the present invention;
Fig. 3 is resonant cavity layer of the present invention;
Fig. 4 is coupling layer of the present invention;
Fig. 5 is feed layer of the present invention;
The simulation result that Fig. 6 utilizes HFSS that plate aerial of the present invention has been done;
In Fig. 1-5,1, the radiator layer; 2, resonant cavity layer; 3, coupling layer; 4, feed layer; 5, grid radiator; 6, radiating slot; 7, resonant cavity; 8, coupling aperture; 9, hybrid-T; 10, step; 11, hybrid-T; 12, feed mouth.
Embodiment
Below in conjunction with embodiment and Figure of description the present invention is described in detail, but is not limited to this.
Embodiment,
A kind of high gain and high efficiency plate aerial that adopts the grid radiator comprises the feed layer 4, coupling layer 3, resonant cavity layer 2 and the radiating layer 1 that set gradually according to the Electromagnetic Wave Propagation direction; Described radiating layer 1 comprises a plurality of radiating elements, comprises grid radiator 5 in each radiating element, and described each grid radiator 5 comprises at the bottom of the rectangular grid sidewall and grid in four sidewall besieged cities, be provided with radiating slot 6 at the bottom of described grid.
Interior long L=20mm, the inner width W=20mm of described each grid radiator 5, interior high H=8mm, grid base thickness h=1mm; The long FL=12mm of described radiating slot, wide FW=2mm.
Described each radiating element comprises 16 grid radiators 5, and described 16 grid radiators are arranged on the described radiating layer 1 according to the arrangement mode of 4 row * 4 row.
Described resonant cavity layer 2 comprises a plurality of RSPUDTcells, and described each RSPUDTcell comprises 4 resonant cavitys 7, and described 4 resonant cavitys 7 are arranged on the described resonant cavity layer 2 according to the arrangement mode of 2 row * 2 row; Described each resonant cavity 7 aligns with 4 grid radiators 5 on the described radiating layer 1.
Described coupling layer 3 comprises a plurality of coupling units, and described each coupling unit comprises 4 coupling apertures 8, and described 4 coupling apertures 8 are arranged on the described coupling layer 3 according to the arrangement mode of 2 row * 2 row; Described each coupling aperture 8 aligns with 1 resonant cavity 7 on the described resonant cavity layer 2.
Described feed layer 4 comprises a plurality of feed element, and each feed element comprises 1 feeding network, and described feeding network aligns with 1 coupling unit on the described coupling layer.
Feeding network in described each feed element comprises the hybrid-T of 3 mutual cascades, be provided with 4 coupling slots on described 2 hybrid-Ts 9 therein, be provided with feed mouth 12 at another hybrid-T 11, described 4 coupling slots are alignd with 4 coupling apertures 8 on the described coupling unit respectively.
After tested, as shown in Figure 6, the simulation result that HFSS has done plate aerial of the present invention, very close with desirable radiation fin, be fit to the specification requirement of satellite communication fully.
Claims (7)
1. a high gain and high efficiency plate aerial that adopts the grid radiator comprises the feed layer, coupling layer, resonant cavity layer and the radiating layer that set gradually according to the Electromagnetic Wave Propagation direction; Described radiating layer comprises a plurality of radiating elements, it is characterized in that, described radiating layer comprises a plurality of radiating elements, comprise the grid radiator in each radiating element, described each grid radiator comprises at the bottom of the rectangular grid sidewall and grid in four sidewall besieged cities, be provided with radiating slot at the bottom of described grid.
2. described a kind of high gain and high efficiency plate aerial that adopts the grid radiator according to claim 1 is characterized in that interior long L=20mm, the inner width W=20mm of described each grid radiator, interior high H=8mm, grid base thickness h=1mm; The long FL=12mm of described radiating slot, wide FW=2mm.
3. described a kind of high gain and high efficiency plate aerial that adopts the grid radiator according to claim 1, it is characterized in that, described each radiating element comprises 16 grid radiators, and described 16 grid radiators are arranged on the described radiating layer according to the arrangement mode of 4 row * 4 row.
4. described a kind of high gain and high efficiency plate aerial that adopts the grid radiator according to claim 3, it is characterized in that, described resonant cavity layer comprises a plurality of RSPUDTcells, described each RSPUDTcell comprises 4 resonant cavitys, and described 4 resonant cavitys are arranged on the described resonant cavity layer according to the arrangement mode of 2 row * 2 row; Described each resonant cavity aligns with 4 grid radiators on the described radiating layer.
5. described a kind of high gain and high efficiency plate aerial that adopts the grid radiator according to claim 4, it is characterized in that, described coupling layer comprises a plurality of coupling units, described each coupling unit comprises 4 coupling apertures, and described 4 coupling apertures are arranged on the described coupling layer according to the arrangement mode of 2 row * 2 row; Described each coupling aperture aligns with 1 resonant cavity on the described resonant cavity layer.
6. described a kind of high gain and high efficiency plate aerial that adopts the grid radiator according to claim 5, it is characterized in that, described feed layer comprises a plurality of feed element, and each feed element comprises 1 feeding network, and described feeding network aligns with 1 coupling unit on the described coupling layer.
7. described a kind of high gain and high efficiency plate aerial that adopts the grid radiator according to claim 6, it is characterized in that, feeding network in described each feed element comprises the hybrid-T of 3 mutual cascades, be provided with 4 coupling slots on described 2 hybrid-Ts therein, be provided with the feed mouth at another hybrid-T, described 4 coupling slots are alignd with 4 coupling apertures on the described coupling unit respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012105600563A CN103078180A (en) | 2012-12-20 | 2012-12-20 | High-gain high-efficiency planar antenna adopting grid radiator |
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| CN2012105600563A CN103078180A (en) | 2012-12-20 | 2012-12-20 | High-gain high-efficiency planar antenna adopting grid radiator |
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| CN103078180A true CN103078180A (en) | 2013-05-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098366A (en) * | 2015-09-09 | 2015-11-25 | 西安三维通信有限责任公司 | Ridge waveguide planar array antenna employing mechanical center feeding |
| CN110661086A (en) * | 2019-10-16 | 2020-01-07 | 盛纬伦(深圳)通信技术有限公司 | High-gain antenna array structure based on resonant cavity radiation |
| CN113224512A (en) * | 2021-04-23 | 2021-08-06 | 华南理工大学 | Cavity filtering antenna with reconfigurable radiation zero |
Citations (5)
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| JP2000244238A (en) * | 1999-02-24 | 2000-09-08 | Nippon Dengyo Kosaku Co Ltd | Grid array antenna |
| CN1885616A (en) * | 2005-06-23 | 2006-12-27 | 北京海域天华通讯设备有限公司 | High-gain waveguide trumpet array flat antenna |
| CN102064380A (en) * | 2010-10-26 | 2011-05-18 | 李峰 | Waveguide flat array antenna |
| CN102723605A (en) * | 2012-06-15 | 2012-10-10 | 山东国威卫星通信有限公司 | Ku/ka dual-band double-slit panel antenna and application of same to portable real-time satellite communication system |
| CN203085757U (en) * | 2012-12-20 | 2013-07-24 | 山东国威卫星通信有限公司 | High-gain and high-efficiency panel antenna with grid radiators |
-
2012
- 2012-12-20 CN CN2012105600563A patent/CN103078180A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000244238A (en) * | 1999-02-24 | 2000-09-08 | Nippon Dengyo Kosaku Co Ltd | Grid array antenna |
| CN1885616A (en) * | 2005-06-23 | 2006-12-27 | 北京海域天华通讯设备有限公司 | High-gain waveguide trumpet array flat antenna |
| CN102064380A (en) * | 2010-10-26 | 2011-05-18 | 李峰 | Waveguide flat array antenna |
| CN102723605A (en) * | 2012-06-15 | 2012-10-10 | 山东国威卫星通信有限公司 | Ku/ka dual-band double-slit panel antenna and application of same to portable real-time satellite communication system |
| CN203085757U (en) * | 2012-12-20 | 2013-07-24 | 山东国威卫星通信有限公司 | High-gain and high-efficiency panel antenna with grid radiators |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098366A (en) * | 2015-09-09 | 2015-11-25 | 西安三维通信有限责任公司 | Ridge waveguide planar array antenna employing mechanical center feeding |
| CN110661086A (en) * | 2019-10-16 | 2020-01-07 | 盛纬伦(深圳)通信技术有限公司 | High-gain antenna array structure based on resonant cavity radiation |
| CN113224512A (en) * | 2021-04-23 | 2021-08-06 | 华南理工大学 | Cavity filtering antenna with reconfigurable radiation zero |
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Application publication date: 20130501 |