CN103296409A - Broadband metamaterial antenna housing and antenna system - Google Patents
Broadband metamaterial antenna housing and antenna system Download PDFInfo
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- CN103296409A CN103296409A CN201210050992XA CN201210050992A CN103296409A CN 103296409 A CN103296409 A CN 103296409A CN 201210050992X A CN201210050992X A CN 201210050992XA CN 201210050992 A CN201210050992 A CN 201210050992A CN 103296409 A CN103296409 A CN 103296409A
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Abstract
The invention relates to a broadband metamaterial antenna housing and an antenna system. The broadband metamaterial antenna housing comprises at least one metamaterial sheet layer, wherein each metamaterial sheet layer comprises a first substrate and a plurality of artificial microstructures which are arranged on the first substrate in an array mode, and the sizes of the artificial microstructures are the same. Each artificial microstructure comprises a mouth-shaped structure, a snowflake-shaped structure is arranged at the center position of each mouth-shaped structure, and a T-shaped structure is arranged in the middle of each edge of each mouth-shaped structure. According to the broadband metamaterial antenna housing, the artificial microstructures in specific shapes are attached to the first substrates to obtain needed electromagnetic responses, wave-transparent performance of the antenna housing based on metamaterials is strengthened, and anti-interference capacity is increased. The working band of the antenna housing is 15-18GHz, wave-transparent efficiency within the band is high, and losses are fewer. The broadband metamaterial antenna housing has the band elimination characteristic when the working band is out of 15-18GHz, and selective filtering can be achieved.
Description
Technical field
The present invention relates to radome, more particularly, relate to the super material radome of broadband and antenna system.
Background technology
Super material is commonly called as super material, is a kind of novel artificial synthetic material, is the substrate of being made by nonmetallic materials and is attached on the substrate surface or a plurality of artificial micro-structural that is embedded in substrate inside constitutes.Substrate can be divided into a plurality of base board units that rectangular array is arranged virtually, be attached with artificial micro-structural on each base board unit, thereby form a super material cell, whole super material is made up of a lot of so super material cell, just as crystal is to be made of according to certain arranging countless lattices.Artificial micro-structural on each super material cell can be identical or incomplete same.Artificial micro-structural has certain geometric plane or a stereochemical structure by what wire was formed, for example forms annular, I-shaped wire etc.
Because the existence of artificial micro-structural, each super material cell has the electromagnetic property that is different from substrate itself, so the super material that all super material cell constitute presents special response characteristic to electric field and magnetic field; By concrete structure and the shape different to artificial microstructure design, can change the response characteristic of whole super material.
Generally speaking, antenna system all can be provided with radome.The purpose of radome is the influence that the protection antenna system is avoided wind and rain, ice and snow, sand and dust and solar radiation etc., makes the antenna system service behaviour more stable, reliable.Alleviate wearing and tearing, the corrosion and aging of antenna system simultaneously, increase the service life.But radome is the barrier of antenna front, can produce the aerial radiation ripple to absorb and reflection, changes the free space Energy distribution of antenna, and influences the electric property of antenna to a certain extent.
At present the material of preparation radome adopts dielectric constant and loss angle tangent is low, mechanical strength is high material more, and as fiberglass, epoxy resin, high molecular polymer etc., the dielectric constant of material has unadjustable property.Mostly be uniform single walled structure, sandwich and spatial skeleton structure etc. on the structure, the design of cone wall thickness need take into account operation wavelength, radome size and dimension, environmental condition, material therefor in factors such as electric and structural performances, difficulty reaches high saturating ripple requirement, even also do not possess the saturating wave energy of selectivity under the condition that guarantees high-transmission rate.And the working frequency range of radome is narrower, needs to change radome under different frequency range demands, can't realize the repeated use of resource, causes the waste of resource and the raising of equipment cost.
Summary of the invention
The technical problem to be solved in the present invention is, and is relatively poor and working frequency range is narrower at the above-mentioned wave penetrate capability of prior art, do not possess the defective of the saturating ripple of selectivity, and a kind of super material radome of broadband and antenna system with filter function is provided.
The technical solution adopted for the present invention to solve the technical problems is: construct the super material radome of a kind of broadband, comprise at least one super sheet of material, each super sheet of material comprises first substrate and the array arrangement a plurality of measure-alike artificial micro-structural on described first substrate; Described artificial micro-structural comprises the square shape structure, and the center of described square shape structure is provided with snowflake shape structure, and the middle part on each limit of described square shape structure is provided with T font structure.
At the super material radome of broadband of the present invention, each super sheet of material also comprises second substrate that is covered on described a plurality of artificial micro-structural.
At the super material radome of broadband of the present invention, first substrate in the described super sheet of material can be divided into a plurality of super material cell, wherein is placed with a described artificial micro-structural on each super material cell.
At the super material radome of broadband of the present invention, the length of each super material cell and the wide 15～16mm that is, the distance between the border of described artificial micro-structural and described super material cell is 0.2mm.
At the super material radome of broadband of the present invention, each square shape structure is made of four identical and end to end wires of size.
At the super material radome of broadband of the present invention, described T font structure comprises two first vertical wires and second wire, and wherein said first wire connects mid point and described second mid point wiry on one side of its corresponding square shape respectively.
At the super material radome of broadband of the present invention, described snowflake type structure comprises decussate texture and is separately positioned on four measure-alike in-line structures on four end points of described decussate texture.
At the super material radome of broadband of the present invention, described decussate texture is made of two size wires identical and that vertically divide equally.
At the super material radome of broadband of the present invention, described in-line structure is made of a wire, and described decussate texture is vertically divided described four in-line structures equally.
The present invention also provides a kind of antenna system, comprises the super material radome of antenna body and aforesaid broadband, and the super material radome of described broadband and antenna body be predeterminable range at interval.
Implement technical scheme of the present invention, have following beneficial effect: by adhere to the artificial micro-structural of given shape at substrate, obtain the electromagnetic response that needs, make that the wave penetrate capability based on the radome of super material strengthens the antijamming capability increase.Can be by regulating shape, the size of artificial micro-structural, change relative dielectric constant, refractive index and the impedance of material, thereby realize the impedance matching with air, to increase the transmission of incident electromagnetic wave to greatest extent, reduced traditional antenna and be covered with timing to the restriction of material thickness and dielectric constant.And the working band of radome of the present invention is between 15-18GHz, and the saturating weave efficiency in this frequency band is very high, and loss is less.Beyond this frequency band, have band resistance characteristic, can realize selective filter.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation according to a super sheet of material of the super material radome of broadband of one embodiment of the invention;
Fig. 2 is the structural representation that is piled up the super material radome of the broadband that forms by a plurality of super sheet of material shown in Figure 1;
Fig. 3 is the structural representation according to the super sheet of material of one embodiment of the invention;
Fig. 4 is the schematic diagram of arranging of artificial micro-structural;
Fig. 5 is the schematic diagram of artificial micro-structural;
Fig. 6 is the S21 parameter schematic diagram of super material radome.
Embodiment
Super material is a kind of artificial composite structure material with the not available extraordinary physical property of natural material, by the orderly arrangement to micro-structural, can change in the space relative dielectric constant and magnetic permeability at every.Super material can be realized refractive index, impedance and the wave penetrate capability that common material can't possess within the specific limits, thereby can effectively control the electromagnetic wave propagation characteristic.Super material radome based on artificial micro-structural can be by regulating shape, the size of artificial micro-structural, change relative dielectric constant, refractive index and the impedance of material, thereby the impedance matching of realization and air is to increase the transmission of incident electromagnetic wave to greatest extent.And can carry out the frequency selection by regulating microstructure size, adjust corresponding ripple and frequency filtering as required.
The invention provides a kind of super material radome, comprise at least one super sheet of material 1, as depicted in figs. 1 and 2.Each super sheet of material 1 comprises two substrates that are oppositely arranged and is attached to the artificial micro-structural of the array arrangement between the two substrates.When super sheet of material 1 has when a plurality of, each super sheet of material 1 is along the direction stack perpendicular to lamella, and is assembled into one by mechanical connection, welding or bonding mode, as shown in Figure 2.Usually, under the situation that can satisfy performance, a super sheet of material just can be used as super material radome and uses.The plane, artificial micro-structural place of array arrangement is parallel with magnetic direction with electromagnetic electric field, and is vertical with the incident electromagnetic wave direction of propagation.First substrate 10 in the super sheet of material 1 can be divided into a plurality of super material cell, wherein is placed with an artificial micro-structural on each super material cell.
Fig. 3 shows the structural representation (perspective view) of super sheet of material.Super sheet of material 1 comprises the plate shape substrates of two identical even uniform thickness: first substrate 10 that is oppositely arranged and second substrate 20, the artificial micro-structural 30 that is attached with array arrangement on the surface of second substrate 20 of described first substrate 10.Super sheet of material 1 can be divided into a plurality of super material cell, wherein is placed with a described artificial micro-structural on each super material cell.In an embodiment of the present invention, be that example describes with two substrates, but when actual design, also can only adopt first substrate, and artificial micro structure array be arranged on first substrate 10, can reach purpose of the present invention equally.
Shown in Fig. 4-5, the length of each super material cell and the wide 15～16mm that is, the distance between the border of artificial micro-structural 30 and super material cell is w2=0.2mm.Each artificial micro-structural 30 comprises square shape structure 31, and the center of square shape structure 31 is provided with snowflake shape structure 32, and the middle part on each limit of square shape structure 32 is provided with T font structure 33.Each square shape structure 31 is made of four identical and end to end wires of size.T font structure 33 comprises two first vertical wires 331 and second wire 332, and wherein first wire 331 connects the mid point on one side of its corresponding square shape and the mid point of second wire 332 respectively.Snowflake type structure 32 comprises decussate texture 321 and is separately positioned on four measure-alike in-line structures 322 on four end points of decussate texture 321.Decussate texture 321 is made of two size wires identical and that vertically divide equally.In-line structure 322 is made of a wire, and decussate texture 321 is vertically divided four in-line structures 322 equally.
In an embodiment of the present invention, the length of super material cell and the wide 15.4mm that is.The length of side of square shape structure 31 is a=15mm.The length of two wire of decussate texture 321 is d=5mm.First length wiry of T font structure 33 is c=2mm, and second length wiry is b=2mm.Live width wiry in the artificial micro-structural 30 is w1=0.1mm.Distance between artificial micro-structural 30 and the super material cell border is 0.2mm.The thickness of first substrate 10 and second substrate 20 is 2mm, and the thickness of artificial micro-structural is 0.018mm.Numerical value herein only is example, in actual applications, can adjust according to actual demand, and the present invention is not restricted this.
In an embodiment of the present invention, first substrate 10 and second substrate 20 are made by F4B or FR4 composite material.Interconnect by the filling liquid raw substrate or by assembling between first substrate 10 and second substrate 20.Artificial micro-structural 30 is attached on first substrate 10 by etched mode, certain artificial micro-structural 30 also can adopt plating, bores quarter, photoetching, electronics is carved or ion quarter etc. mode be attached on first substrate 10 or second substrate 20.First substrate 10 and second substrate 20 also can adopt other materials to make, and make such as pottery, polytetrafluoroethylene, ferroelectric material, ferrite material or ferromagnetic material.Artificial micro-structural 30 adopts copper cash to make, and can certainly adopt electric conducting materials such as silver-colored line, ITO, graphite or carbon nano-tube to make.The radome of illustrating in the accompanying drawing be shaped as tabular, when actual design, also can come the shape of designing antenna cover according to the actual requirements, such as being designed to spherical shape or with the shape (conformal radome) of antenna pattern coupling etc., the present invention is not restricted this.
The S parameter of the super material radome of present embodiment with the schematic diagram of frequency change as shown in Figure 6, used first substrate 10 and second substrate 20 are the F4B composite material.Can be seen by Fig. 6, technical scheme of the present invention substrate adhere to after the artificial micro-structural S21 parameter in the 15-18GHz scope basically all greater than-0.2dB, adopt radome of the present invention to have good wave penetrate capability, loss is less.In addition, less than 15GHz with greater than 18GHz the time, the transmission coefficient S21 of radome is less than 2dB, and transmission is little, has to be with resistive matter, can be used as the selective filter function and uses.Regulate ripple and filtered band and bandwidth thereof by the size that changes micro-structural, thereby be suitable for different application scenarios.
The present invention also provides a kind of antenna system, comprises antenna body, and the super material radome of broadband as indicated above, and the super material radome of broadband and antenna body be predeterminable range at interval.Antenna body comprises radiation source, feed element etc., and concrete formation can be consulted the correlation technique data, and the present invention is not restricted this.Antenna body can be such as but not limited to plate aerial.
The present invention is by adhering to the artificial micro-structural of given shape at substrate, obtain the electromagnetic response that needs, makes that the wave penetrate capability based on the radome of super material strengthens the antijamming capability increase.Can be by regulating shape, the size of artificial micro-structural, change relative dielectric constant, refractive index and the impedance of material, thereby realize the impedance matching with air, to increase the transmission of incident electromagnetic wave to greatest extent, reduced traditional antenna and be covered with timing to the restriction of material thickness and dielectric constant.And the working band of radome of the present invention is between 15-18GHz, and the saturating weave efficiency in this frequency band is very high, and loss is less.Beyond this frequency band, have band resistance characteristic, can realize selective filter.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away under the scope situation that aim of the present invention and claim protect, also can make a lot of forms, these all belong within the protection of the present invention.
Claims (10)
1. the super material radome of broadband is characterized in that, comprises at least one super sheet of material, and each super sheet of material comprises first substrate and the array arrangement a plurality of measure-alike artificial micro-structural on described first substrate; Described artificial micro-structural comprises the square shape structure, and the center of described square shape structure is provided with snowflake shape structure, and the middle part on each limit of described square shape structure is provided with T font structure.
2. the super material radome of broadband according to claim 1 is characterized in that, each super sheet of material also comprises second substrate that is covered on described a plurality of artificial micro-structural.
3. the super material radome of broadband according to claim 1 is characterized in that, first substrate in the described super sheet of material can be divided into a plurality of super material cell, wherein is placed with a described artificial micro-structural on each super material cell.
4. the super material radome of broadband according to claim 3 is characterized in that, the length of each super material cell and the wide 15～16mm that is, and the distance between the border of described artificial micro-structural and described super material cell is 0.2mm.
5. the super material radome of broadband according to claim 1 is characterized in that, each square shape structure is made of four identical and end to end wires of size.
6. the super material radome of broadband according to claim 5, it is characterized in that, described T font structure comprises two first vertical wires and second wire, and wherein said first wire connects mid point and described second mid point wiry on one side of its corresponding square shape respectively.
7. the super material radome of broadband according to claim 6 is characterized in that, described snowflake type structure comprises decussate texture and is separately positioned on four measure-alike in-line structures on four end points of described decussate texture.
8. the super material radome of broadband according to claim 7 is characterized in that, described decussate texture is made of two size wires identical and that vertically divide equally.
9. the super material radome of broadband according to claim 8 is characterized in that, described in-line structure is made of a wire, and described decussate texture is vertically divided described four in-line structures equally.
10. an antenna system is characterized in that, comprises antenna body and as the super material radome of each described broadband of claim 1～9, and the super material radome of described broadband and antenna body be predeterminable range at interval.
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| CN201210050992.XA CN103296409B (en) | 2012-02-29 | 2012-02-29 | Broadband metamaterial antenna house and antenna system |
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| CN201210050992.XA CN103296409B (en) | 2012-02-29 | 2012-02-29 | Broadband metamaterial antenna house and antenna system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098349A (en) * | 2015-08-26 | 2015-11-25 | 武汉市灵动时代智能技术有限公司 | Ku-band intelligent metamaterial wide-angle wave-transparent frequency-selective antenna cover |
| CN107039763A (en) * | 2016-11-30 | 2017-08-11 | 中国铁塔股份有限公司长春市分公司 | A kind of double-T antenna house |
| CN108199149A (en) * | 2017-12-30 | 2018-06-22 | 天津大学 | A kind of double-T shaped left-handed material of single side |
| CN108361920A (en) * | 2018-03-27 | 2018-08-03 | 南京中高知识产权股份有限公司 | A kind of intelligent air purifying system |
| CN108399053A (en) * | 2018-02-13 | 2018-08-14 | 常州信息职业技术学院 | A kind of print system and its working method based on Cloud Server function |
| CN108406810A (en) * | 2018-03-27 | 2018-08-17 | 南京中高知识产权股份有限公司 | A kind of robot system suitable for remote control |
| CN108598713A (en) * | 2018-04-02 | 2018-09-28 | 杭州电子科技大学 | A kind of single side left-handed material based on T shape metal strips and blocky left-handed material |
| CN108718000A (en) * | 2018-05-29 | 2018-10-30 | 电子科技大学 | A kind of dual-band and dual-polarization electromagnetic bandgap structure |
| CN109390700A (en) * | 2018-11-23 | 2019-02-26 | 中国计量大学 | Mixed structure Meta Materials Terahertz broad band absorber |
| CN109888490A (en) * | 2017-12-06 | 2019-06-14 | 南京中高知识产权股份有限公司 | A kind of antenna assembly applied in kinematic robot |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105098349A (en) * | 2015-08-26 | 2015-11-25 | 武汉市灵动时代智能技术有限公司 | Ku-band intelligent metamaterial wide-angle wave-transparent frequency-selective antenna cover |
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| CN109888490A (en) * | 2017-12-06 | 2019-06-14 | 南京中高知识产权股份有限公司 | A kind of antenna assembly applied in kinematic robot |
| CN108199149A (en) * | 2017-12-30 | 2018-06-22 | 天津大学 | A kind of double-T shaped left-handed material of single side |
| CN108399053A (en) * | 2018-02-13 | 2018-08-14 | 常州信息职业技术学院 | A kind of print system and its working method based on Cloud Server function |
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| CN108406810A (en) * | 2018-03-27 | 2018-08-17 | 南京中高知识产权股份有限公司 | A kind of robot system suitable for remote control |
| CN108598713A (en) * | 2018-04-02 | 2018-09-28 | 杭州电子科技大学 | A kind of single side left-handed material based on T shape metal strips and blocky left-handed material |
| CN108718000A (en) * | 2018-05-29 | 2018-10-30 | 电子科技大学 | A kind of dual-band and dual-polarization electromagnetic bandgap structure |
| CN109390700A (en) * | 2018-11-23 | 2019-02-26 | 中国计量大学 | Mixed structure Meta Materials Terahertz broad band absorber |
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