CN102683842B - Super material microwave antenna house and antenna system - Google Patents
Super material microwave antenna house and antenna system Download PDFInfo
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- CN102683842B CN102683842B CN201210127683.8A CN201210127683A CN102683842B CN 102683842 B CN102683842 B CN 102683842B CN 201210127683 A CN201210127683 A CN 201210127683A CN 102683842 B CN102683842 B CN 102683842B
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Abstract
The present invention relates to super material microwave antenna house and antenna system. Described super material microwave antenna house covers on antenna, comprises at least one super sheet of material, and each super sheet of material comprises substrate and the array arrangement multiple artificial micro-structural two apparent surfaces of described substrate; Substrate is made up of HDPE material; Substrate can be divided into multiple super material cell, wherein on two apparent surfaces of each super material cell, is placed with respectively an artificial micro-structural, each artificial micro-structural measure-alike; Described artificial micro-structural comprises the square shape structure of being close to described super material cell edge and the square patch that is positioned at described super material cell center. The present invention adheres to the artificial micro-structural of given shape on substrate, regulates the shape of artificial micro-structural, relative dielectric constant, refractive index and the impedance that size changes material, strengthens electromagnetic transmission, improves directionality and the gain of antenna.
Description
Technical field
The present invention relates to antenna house, more particularly, relate to super material microwave antenna house and antenna system.
Background technology
Super material, is commonly called as super material, is a kind of novel artificial synthetic material, is made up of nonmetallic materialsSubstrate and be attached on substrate surface or be embedded in that the multiple artificial micro-structural of substrate inside forms. Substrate canMultiple base board units of arranging to be divided into virtually rectangular array, are attached with artificial micro-on each base board unitStructure, thus a super material cell formed, and whole super material is made up of a lot of so super material cell, just as crystal is to be made up of according to certain arranging countless lattices. People in each super material cellMaking micro-structural can be identical or incomplete same. What artificial micro-structural was made up of wire has necessarily severalPlane or the stereochemical structure of what figure, for example, form annular, I-shaped wire etc.
Due to the existence of artificial micro-structural, each super material cell has the electromagnetism spy who is different from substrate itselfProperty, the super material that therefore all super material cell form presents special response spy to Electric and magnetic fieldsProperty; By to the different concrete structure of artificial microstructure design and shape, can change the sound of whole super materialAnswer characteristic.
Generally, antenna system all can be provided with antenna house. The object of antenna house is protection antenna systemAvoid the impact of wind and rain, ice and snow, sand and dust and solar radiation etc., make antenna system service behaviour more stable,Reliably. The wearing and tearing, the corrosion and aging that alleviate antenna system increase the service life simultaneously. But antenna house isBarrier before antenna, can produce and absorb and reflection aerial radiation ripple, changes the free space energy of antennaAmount distributes, and affects to a certain extent the electric property of antenna.
The material of preparing at present antenna house adopts dielectric constant and loss angle tangent is low, mechanical strength is high material moreMaterial, as fiberglass, epoxy resin, high molecular polymer etc., the dielectric constant of material has unadjustable property.In structure, mostly be uniform single walled structure, sandwich and spatial skeleton structure etc., the design of cone wall thickness need be held concurrentlyTurn round and look at operation wavelength, antenna house size and dimension, environmental condition, material therefor in electric and structural performanceEtc. factor, protecting antenna to avoid not possessing enhance antenna directionality and raising under the condition of external environment influenceThe function of antenna gain, wave penetrate capability is poor.
Summary of the invention
The technical problem to be solved in the present invention is, poor for the above-mentioned wave penetrate capability of prior art, can notImprove the defect of antenna gain, a kind of super material microwave antenna house and antenna system are provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of super material microwave antenna of structureCover, described super material microwave antenna house covers on antenna, comprises at least one super sheet of material, and each is superSheet of material comprises substrate and the array arrangement multiple artificial micro-structural two apparent surfaces of described substrate; InstituteStating substrate is made up of HDPE material;
Described substrate can be divided into multiple super material cell, wherein on two apparent surfaces of each super material cellBe placed with respectively an artificial micro-structural, each artificial micro-structural measure-alike; Described artificial micro-structural bagDraw together the square shape structure of being close to described super material cell edge and the side that is positioned at described super material cell centerShape paster.
In super material microwave antenna house of the present invention, described in described super sheet of material also comprises and being covered inTwo apparent surfaces' of substrate protective layer.
In the super material microwave antenna house of the present invention, described square shape structure is by having default live widthWire forms.
In super material microwave antenna house of the present invention, described square patch is square metal paster.
In super material microwave antenna house of the present invention, the length of each super material cell and wide being10mm。
In super material microwave antenna house of the present invention, the thickness of described substrate is 4mm, described peopleThe thickness of making micro-structural is 0.018mm.
In super material microwave antenna house of the present invention, the length of side of described square patch is 5～6mm.
In super material microwave antenna house of the present invention, the operating frequency of described super material microwave antenna houseScope is 7.1～8.5GHz.
In super material microwave antenna house of the present invention, the length of side of described square patch is 6mm, instituteThe live width of stating square shape structure is 0.2mm.
The present invention also provides a kind of antenna system, comprises antenna, and super material microwave antenna as aboveCover, described super material microwave antenna house covers on antenna.
Implement technical scheme of the present invention, there is following beneficial effect: by adhere to given shape on substrateArtificial micro-structural, obtain the electromagnetic response that needs, make the wave penetrate capability increasing of the antenna house based on super materialBy force, antijamming capability increases. Can be by regulating shape, the size of artificial micro-structural, change materialRelative dielectric constant, refractive index and impedance, thereby the impedance matching of realization and air, to increase to greatest extentAdd the transmission of incident electromagnetic wave, the limit to material thickness and dielectric constant while having reduced the design of traditional antenna coverSystem. And antenna house wave transparent efficiency of the present invention is very high, loss is less. And microwave antenna adds antennaAfter cover, the radianting capacity of antenna has obtained reinforcement, has effectively improved gain, and radiation directivity strengthens.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the knot according to a super sheet of material of the super material microwave antenna house of one embodiment of the inventionStructure schematic diagram;
Fig. 2 is the structure by the stacking super material microwave antenna house forming of the super sheet of material shown in multiple Fig. 1Schematic diagram;
Fig. 3 is the schematic perspective view according to the super sheet of material of one embodiment of the invention;
Fig. 4 is the volume rendering schematic diagram of the super sheet of material shown in Fig. 3;
Fig. 5 is the artificial micro-structural of adhering in the super sheet of material schematic diagram of arranging;
Fig. 6 is the schematic diagram of artificial micro-structural;
Fig. 7 is the S parameters simulation result schematic diagram of super material microwave antenna house;
Fig. 8 is the overall structure schematic diagram according to the antenna system of one embodiment of the invention.
Detailed description of the invention
Super material is a kind of artificial composite structure material with the not available extraordinary physical property of natural materialMaterial, by the ordered arrangement to micro-structural, can change in space relative dielectric constant and the magnetic conductivity of at every.Super material can be realized refractive index, impedance and the wave that common material cannot possess within the specific limitsCan, thereby can effectively control electromagnetic wave propagation characteristic. Super material antenna house based on artificial micro-structural canWith by regulating shape, the size of artificial micro-structural, change material relative dielectric constant, refractive index andImpedance, thus the impedance matching of realization and air, to increase to greatest extent the transmission of incident electromagnetic wave, is carriedThe directionality of high electromagenetic wave radiation, the gain that improves antenna.
The invention provides a kind of super material microwave antenna house, comprise at least one super sheet of material 1, as figure1 and Fig. 2 shown in. Each super sheet of material 1 comprises substrate 10 and is attached to the array arrangement on substrate 10In two apparent surfaces' of substrate 10 multiple artificial micro-structural 20. When super sheet of material 1 has when multiple, eachIndividual super sheet of material 1 superposes along the direction perpendicular to lamella, and by mechanical connection, welding or bonding sideFormula is assembled into one, as shown in Figure 2. For example adopt 3 laminar substrates, two-layer artificial micro-structural is intervally arrangedBetween 3 laminar substrates, another two-layer artificial micro-structural distributes and is arranged in two outer surfaces after 3 laminar substrate laminatings.The present invention does not limit the concrete quantity of super sheet of material, can regulate super material according to different gain requirementsBed of material number, thereby control antenna gain.
Conventionally,, in the situation that can meeting performance, a super sheet of material just can be used as super material microwaveAntenna house uses. The artificial micro-structural place plane of array arrangement and electromagnetic Electric and magnetic fields direction are flatOK, vertical with the incident electromagnetic wave direction of propagation. Substrate 10 in super sheet of material 1 can be divided into multiple superMaterial cell. As in Figure 3-5, on two apparent surfaces in each super material cell, be placed with respectively oneArtificial micro-structural 20. In an embodiment of the present invention, the length of each super material cell and wide be b=10mm.The division number of the super material cell shown in figure is only for signal, not as limitation of the present invention.
Fig. 3 is the stereogram of super sheet of material, and the two upper equal rules in surface of substrate 10 are placed with identical peopleMake micro-structural 20; Fig. 4 is the perspective view of the super sheet of material shown in Fig. 3, can find out, substrate 10Two apparent surfaces artificial micro-structural 20 of one deck of all arranging, on two apparent surfaces in each super material cellBe placed with respectively identical artificial micro-structural 20, arrangement mode as shown in Figure 5.
In an embodiment of the present invention, in order to protect artificial micro-structural not to be damaged, super sheet of material 1 is also wrappedDraw together two-layer protective layer (not shown), be covered in two apparent surfaces of substrate 10, for the protection of substrate 10Artificial micro-structural on two apparent surfaces. The material of protective layer can be identical or different with substrate 10The material that wave penetrate capability is good, can be also coat, as long as can protect artificial micro-structural not to be damaged.
As shown in Figure 6, artificial micro-structural 20 comprises the square shape structure 21 of being close to super material cell edgeAnd be positioned at the square patch 22 at super material cell center. In an embodiment of the present invention, each is artificial micro-Structure 20 measure-alike. Square shape structure 21 is made up of the wire with default live width, square patch22 is square metal paster. Preset live width w such as but not limited to 0.05～0.3mm, square patch 22Length of side a is 5～6mm. In an embodiment of the present invention, default live width w is 0.2mm, square patch 22Length of side a be 6mm.
The thickness of substrate 10 is 4mm, and the thickness of artificial micro-structural 20 is 0.018mm. Number hereinValue is only example, in actual applications, can adjust according to actual demand, and the present invention does not limit thisSystem.
In an embodiment of the present invention, substrate 10 is by HDPE (high density polyethylene (HDPE), HighDensityPolyethylene) material makes. Artificial micro-structural 20 is attached on substrate 10 by etched mode,Certain artificial micro-structural 20 also can adopt plating, bore that quarter, photoetching, electronics carve or ion quarter etc. modeBe attached on substrate 10. Substrate 10 and substrate 30 also can adopt other materials to make, such as pottery,FR4, F4B (polytetrafluoroethylene (PTFE)), ABS (AcrylonitrileButadieneStyrene) material, ironElectric material, ferrite material or ferromagnetic material are made. Artificial micro-structural 20 adopts copper cash to make, certainly alsoCan adopt the conductive materials such as silver-colored line, ITO, graphite or CNT to make. The antenna of illustrating in accompanying drawingCover be shaped as tabular, in the time of actual design, also can carry out according to the actual requirements the shape of designing antenna cover,Such as shape that can be designed to spherical shape or mate with antenna pattern (conformal antenna house) etc., also notGet rid of and use multiple plate-like structures to be spliced into the shape needing, the present invention is not restricted this.
Fig. 7 shows the S parameter schematic diagram of super material microwave antenna house, and in this embodiment, super material is micro-Wave antenna cover comprises a super sheet of material, and each super sheet of material comprises a substrate, two phases of substrateEffects on surface distributes and is placed with identical artificial micro-structural, as Figure 4-Figure 6, and square shape structure 21 defaultLive width w is 0.2mm, and the length of side a of square patch 22 is 6mm, and super material cell side length b is 10mm.As shown in Figure 7, antenna house is be greater than-0.3dB of transmission coefficient S21 in 7.1-8.5GHz frequency range, reflectionBe less than-10dB of coefficient S 11. In the time of 7.1GHz, S21=-0.28447dB, in the time of 8.5GHz,S21=-0.26724dB, antenna house has good wave transparent effect in 7.1-8.5GHz frequency range.
Fig. 8 is the overall structure schematic diagram according to the antenna system of one embodiment of the invention. Super material microwave skyIrdome 801 covers on antenna 802, and wherein the antenna 802 is here illustrated with electromagnetic horn, noAs limitation of the present invention. Super material microwave antenna house 801 and antenna 802 are fixedly connected to form sealingCavity. The concrete formation of super material microwave antenna house 801 and design, referring to mentioned above, repeat no more herein.Fixed form between antenna 802 and super material microwave antenna house 801 can make nut connect, and can be alsoBuckle connects, and the present invention does not limit fixed form.
The present invention, by adhere to the artificial micro-structural of given shape on substrate, obtains the electromagnetic response needing.Can, by regulating shape, the size of artificial micro-structural, change relative dielectric constant, the refractive index of materialAnd impedance, realize electromagnetic modulation, normal to material thickness and dielectric while having reduced the design of traditional antenna coverThe restriction of number, effectively controls electromagnetic wave propagation characteristic, strengthens electromagnetic transmission, thereby raising antennaDirectionality and gain.
By reference to the accompanying drawings embodiments of the invention are described above, above-mentioned but the present invention is not limited toDetailed description of the invention, above-mentioned detailed description of the invention is only schematically, instead of restrictive, thisThe those of ordinary skill in field, under enlightenment of the present invention, is protected not departing from aim of the present invention and claimIn the scope situation of protecting, also can make a lot of forms, within these all belong to protection of the present invention.
Claims (3)
1. a super material microwave antenna house, is characterized in that, described super material microwave antenna house cover is establishedOn antenna, comprise multiple super sheet of material, each super sheet of material comprises that substrate and array arrangement existTwo apparent surfaces' of described substrate multiple artificial micro-structural; Described substrate is made up of HDPE material;
Described substrate can be divided into multiple super material cell, wherein the two-phase his-and-hers watches of each super material cellOn face, be placed with respectively an artificial micro-structural, each artificial micro-structural measure-alike; Each super materialThe length of material unit and the wide 10mm that is, described artificial micro-structural is by being close to described super material cell edgeSquare shape structure and the square patch that is positioned at described super material cell center form, and described squarePaster is not connected with the square shape structure at described super material cell edge, and described square patch is square goldBelong to paster;
Described square shape structure is made up of the wire with default live width, the length of side of described square patchFor 6mm, the live width of described square shape structure is 0.2mm, and described super material microwave antenna houseOperating frequency range is 7.1～8.5GHz;
Wherein, the thickness of described substrate is 4mm, and the thickness of described artificial micro-structural is 0.018mm.
2. super material microwave antenna house according to claim 1, is characterized in that, described super materialTablet layer also comprises two apparent surfaces' that are covered in described substrate protective layer.
3. an antenna system, is characterized in that, comprises antenna, and as 1 or 2 of claimsThe super material microwave antenna house of stating, described super material microwave antenna house covers on antenna.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210127683.8A CN102683842B (en) | 2012-04-27 | 2012-04-27 | Super material microwave antenna house and antenna system |
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| CN201210127683.8A CN102683842B (en) | 2012-04-27 | 2012-04-27 | Super material microwave antenna house and antenna system |
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| CN102683842A CN102683842A (en) | 2012-09-19 |
| CN102683842B true CN102683842B (en) | 2016-05-18 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102694255B (en) * | 2012-04-27 | 2014-08-13 | 深圳光启创新技术有限公司 | Meta-material microwave antenna housing and antenna system |
| GB2529211A (en) * | 2014-08-13 | 2016-02-17 | Bae Systems Plc | Antenna structure |
| CN104617361A (en) * | 2015-03-01 | 2015-05-13 | 中国人民解放军国防科学技术大学 | Three-way bandwidth frequency band frequency selecting surface structure and antenna cover |
| CN109638467A (en) * | 2019-01-24 | 2019-04-16 | 桂林电子科技大学 | A kind of high refractive index Meta Materials of the low dispersion in broadband |
| CN111916890A (en) * | 2019-05-09 | 2020-11-10 | 深圳光启尖端技术有限责任公司 | Metamaterial electric scanning antenna |
| CN111755780B (en) * | 2020-06-17 | 2021-11-02 | 东南大学 | Basic unit and space phase shifter for analog signal processing constructed based on basic unit |
| CN113224537B (en) * | 2021-04-29 | 2022-10-21 | 电子科技大学 | Design method of F-P-like cavity metamaterial microstrip antenna applied to wireless power transmission |
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| US5384575A (en) * | 1988-09-26 | 1995-01-24 | Hughes Aircraft Company | Bandpass frequency selective surface |
| CN102354811A (en) * | 2011-08-15 | 2012-02-15 | 浙江大学 | Completely matched refraction-free radome formed by utilizing sub-wavelength resonance units |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100134567A (en) * | 2008-02-26 | 2010-12-23 | 아사히 가라스 가부시키가이샤 | Artificial medium |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5384575A (en) * | 1988-09-26 | 1995-01-24 | Hughes Aircraft Company | Bandpass frequency selective surface |
| CN102354811A (en) * | 2011-08-15 | 2012-02-15 | 浙江大学 | Completely matched refraction-free radome formed by utilizing sub-wavelength resonance units |
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Effective date of registration: 20160322 Address after: 518057 Guangdong City, Nanshan District province high tech Zone in the middle of a high tech building, building No. 4, No. 9, building Applicant after: Shenzhen Guangqi Innovative Technology Co., Ltd. Address before: 518034 A international business center, No. 1061, Xiang Mei Road, Guangdong, Shenzhen, Futian District, China 18B Applicant before: Shenzhen Kuang-Chi Innovation Technology Co., Ltd. |
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