CN103296406B - Metamaterial antenna housing - Google Patents
Metamaterial antenna housing Download PDFInfo
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- CN103296406B CN103296406B CN201210050583.XA CN201210050583A CN103296406B CN 103296406 B CN103296406 B CN 103296406B CN 201210050583 A CN201210050583 A CN 201210050583A CN 103296406 B CN103296406 B CN 103296406B
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Abstract
The invention relates to a metamaterial antenna housing which comprises at least one metamaterial sheet layer. The metamaterial sheet layer comprises a first substrate and a second substrate, wherein the first substrate and the second substrate are arranged in an opposite mode, and a plurality of artificial microstructures which are arranged in an array mode are arranged between the first substrate and the second substrate in a clamped mode. Each artificial microstructure comprises a crossed structure and four U-shaped structures which are arranged in four areas of the crossed structure respectively, wherein the crossed structure is divided into the four areas. According to the metamaterial antenna housing, due to the fact that the artificial microstructures with specific shapes are attached to the substrates, needed electromagnetic response is obtained, the wave-transparent performance of the antenna housing based on the metamaterial can be improved, and capacity of resisting disturbance of the antenna housing is improved. Frequency selection can be carried out through adjustment of the sizes of the artificial microstructures, and the corresponding wave-transparent frequency and the corresponding wave filtering frequency can be adjusted as needed. Due to the facts that the metamaterial antenna housing has good wave filtering performance, and further has the wave filtering function, the requirements of wave filtering performance of an antenna are reduced to a large extent, and the cost of a filter used by the antenna is also reduced.
Description
Technical field
The present invention relates to radome, more particularly, relate to super material radome.
Background technology
Super material, is commonly called as super material, is a kind of novel artificial synthetic material, is the substrate be made up of nonmetallic materials and is attached on substrate surface or the multiple artificial micro-structural that is embedded in substrate inside forms.Substrate can be divided into multiple base board units that rectangular array is arranged virtually, on each base board unit, be attached with artificial micro-structural, 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 up of according to certain arranging countless lattices.Artificial micro-structural in each super material cell can be identical or incomplete same.What artificial micro-structural was made up of wire has certain geometric plane or stereochemical structure, for example, form annular, I-shaped wire etc.
Due to the existence of artificial micro-structural, each super material cell has the electromagnetic property that is different from substrate itself, and the super material that therefore all super material cell form presents special response characteristic to Electric and magnetic fields; By to the different concrete structure of artificial microstructure design and shape, can change the response characteristic of whole super material.
Generally, antenna system all can be provided with radome.The object of radome is the impact that protection antenna system is avoided wind and rain, ice and snow, sand and dust and solar radiation etc., makes antenna system service behaviour more stable, reliable.The wearing and tearing, the corrosion and aging that alleviate antenna system increase the service life simultaneously.But radome is the barrier before antenna, aerial radiation ripple can be produced and be absorbed and reflection, change the free space Energy distribution of antenna, and affect to a certain extent the electric property of antenna.
The material of preparing at present 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.In structure, mostly be uniform single walled structure, sandwich and spatial skeleton structure etc., 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, more difficultly reach high wave transparent requirement, even also do not possess selectivity wave transparent function under the condition that ensures high-transmission rate.
Summary of the invention
The technical problem to be solved in the present invention is, poor and do not possess the defect of selectivity wave transparent for the above-mentioned wave penetrate capability of prior art, and a kind of super material radome with filter function is provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of super material radome of structure, comprise at least one super sheet of material, each super sheet of material comprises the first substrate and the second substrate that are oppositely arranged, is folded with the multiple artificial micro-structural of array arrangement between first substrate and second substrate; Each artificial micro-structural comprises a decussate texture and is separately positioned on four U-shaped structures in four regions that described decussate texture divides.
In super material radome of the present invention, the first substrate in described super sheet of material can be divided into multiple super material cell, wherein in each super material cell, is placed with a described artificial micro-structural.
In super material radome of the present invention, the length of each super material cell and the wide 15mm that is.
In super material radome of the present invention, described decussate texture is made up of the first wire isometric and that vertically divide equally and the second wire.
In super material radome of the present invention, arbitrary U-shaped structure overlaps with the U-shaped structure in clockwise adjacent area after the vertical bisecting point dextrorotation of described decussate texture turn 90 degrees, and the opening of arbitrary U-shaped structure is just to described the first wire or the second wire.
In super material radome of the present invention, the first wire and the second length wiry are 14.7mm, and width is 0.1mm, and thickness is 0.018mm.
In super material radome of the present invention, arbitrary U-shaped structure and the first wire and the second spacing wiry are 0.1mm.
In super material radome of the present invention, the turning of each U-shaped structure is right angle, and each length of side of arbitrary U-shaped structure is 7.2mm.
In super material radome of the present invention, described first substrate and second substrate are made by F4B composite material or FR4 composite material.
In super material radome of the present invention, described artificial micro-structural is attached on first substrate or second substrate by etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method.
Implement technical scheme of the present invention, there is following beneficial effect: by adhere to the artificial micro-structural of given shape on substrate, obtain the electromagnetic response of needs, the wave penetrate capability of the radome based on super material is strengthened, antijamming capability increases.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 to greatest extent the transmission of incident electromagnetic wave, the restriction to material thickness and dielectric constant while having reduced the design of traditional antenna cover.And can, by regulating artificial microstructure size to carry out frequency selection, adjust as required corresponding wave transparent and frequency filtering.
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 structural representation according to a super sheet of material of the super material radome of one embodiment of the invention;
Fig. 2 is the structural representation by the stacking super material radome forming of the super sheet of material shown in multiple Fig. 1;
Fig. 3 is the fractionation structural representation according to the super sheet of material of one embodiment of the invention;
Fig. 4 is the schematic diagram of artificial micro-structural;
Fig. 5-6th, the S 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 ordered arrangement to micro-structural, can change in space relative dielectric constant and the magnetic permeability of at every.Super material can be realized refractive index, impedance and the wave penetrate capability that common material cannot possess within the specific limits, thereby can effectively control 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, to increase to greatest extent the transmission of incident electromagnetic wave.And can, by regulating microstructure size to carry out frequency selection, adjust as required corresponding wave transparent and frequency filtering.
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 two substrates, and each artificial micro-structural comprises a decussate texture and is separately positioned on four U-shaped structures in four regions that described decussate texture divides.When super sheet of material 1 has when multiple, 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.
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: the first substrate 10 being oppositely arranged and second substrate 20, described first substrate 10 towards the artificial micro-structural 30 that is attached with array arrangement on the surface of second substrate 20.Super sheet of material 1 can be divided into multiple super material cell, wherein in each super material cell, is placed with a described artificial micro-structural.In an embodiment of the present invention, the length of each super material cell and wide be 15mm.
As shown in Figure 4, each artificial micro-structural comprises decussate texture, and decussate texture is made up of the first wire m isometric and that vertically divide equally and the second wire n.The arbitrary U-shaped structure being separately positioned in four regions that decussate texture divides overlaps with the U-shaped structure in clockwise adjacent area after the vertical bisecting point dextrorotation of described decussate texture turn 90 degrees, and the opening of arbitrary U-shaped structure is just to the first wire m or the second wire n.
The length of the first wire m and the second wire n is c=14.7mm, and width is w=0.1mm, and thickness is 0.018mm.Arbitrary U-shaped structure and the first wire and the second spacing wiry are d=0.1mm.The turning of each U-shaped structure is right angle, and each length of side of arbitrary U-shaped structure is equal, is a=b=7.2mm.The thickness of first substrate and second substrate is 2mm.Numerical value is herein only 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.Between first substrate 10 and second substrate 20 by filling liquid raw substrate or interconnect by assembling.Artificial micro-structural 30 is attached on first substrate 10 by etched mode, certain artificial micro-structural 30 also can adopt plating, bore that quarter, photoetching, electronics carve 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, such as pottery, polytetrafluoroethylene, ferroelectric material, ferrite material or ferromagnetic material are made.Artificial micro-structural 30 adopts copper cash to make, and can certainly adopt the electric conducting materials such as silver-colored line, ITO, graphite or carbon nano-tube to make.
The S parameter of the super material radome of the present embodiment is with the schematic diagram of frequency change as shown in Fig. 5-6, and near frequency 1.95GHz, radome has good wave penetrate capability.In addition, near 1.77GHz and 2.5GHz, the be less than-35dB of transmission coefficient S21 of radome, transmission minimum, has and is with resistive matter.Near this frequency, can be used as selective filter function uses.Therefore radome provided by the invention also has filter function outward meeting good wave penetrate capability, has reduced so to a great extent the filtering performance demand of antenna itself, has also just reduced the cost of filter that antenna uses simultaneously.
The present invention, by adhere to the artificial micro-structural of given shape on substrate, obtains the electromagnetic response of needs, and the wave penetrate capability of the radome based on super material is strengthened, and antijamming capability increases.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 to greatest extent the transmission of incident electromagnetic wave, the restriction to material thickness and dielectric constant while having reduced the design of traditional antenna cover.And can, by regulating artificial microstructure size to carry out frequency selection, adjust as required corresponding wave transparent and frequency filtering.
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 is only schematic; instead of restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not departing from the scope situation that aim of the present invention and claim protect, also can make a lot of forms, within these all belong to protection of the present invention.
Claims (10)
1. a super material radome, is characterized in that, comprises at least one super sheet of material, and each super sheet of material comprises the first substrate and the second substrate that are oppositely arranged, is folded with the multiple artificial micro-structural of array arrangement between first substrate and second substrate; Each artificial micro-structural comprises a decussate texture and four U-shaped structures, in each region in four regions that described decussate texture is divided, a U-shaped structure is set.
2. super material radome according to claim 1, is characterized in that, the first substrate in described super sheet of material can be divided into multiple super material cell, wherein in each super material cell, is placed with a described artificial micro-structural.
3. super material radome according to claim 2, is characterized in that, the length of each super material cell and the wide 15mm that is.
4. super material radome according to claim 1, is characterized in that, described decussate texture is made up of the first wire isometric and that vertically divide equally and the second wire.
5. super material radome according to claim 4, it is characterized in that, arbitrary U-shaped structure overlaps with the U-shaped structure in clockwise adjacent area after the vertical bisecting point dextrorotation of described decussate texture turn 90 degrees, and the opening of arbitrary U-shaped structure is just to described the first wire or the second wire.
6. super material radome according to claim 5, is characterized in that, the first wire and the second length wiry are 14.7mm, and width is 0.1mm, and thickness is 0.018mm.
7. according to the super material radome described in claim 4～6 any one, it is characterized in that, arbitrary U-shaped structure and the first wire and the second spacing wiry are 0.1mm.
8. super material radome according to claim 7, is characterized in that, the turning of each U-shaped structure is right angle, and each length of side of arbitrary U-shaped structure is 7.2mm.
9. super material radome according to claim 1, is characterized in that, described first substrate and second substrate are made by F4B composite material or FR4 composite material, and thickness is 2mm.
10. super material radome according to claim 1, is characterized in that, described artificial micro-structural is attached on first substrate or second substrate by etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210050583.XA CN103296406B (en) | 2012-02-29 | 2012-02-29 | Metamaterial antenna housing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210050583.XA CN103296406B (en) | 2012-02-29 | 2012-02-29 | Metamaterial antenna housing |
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| CN103296406A CN103296406A (en) | 2013-09-11 |
| CN103296406B true CN103296406B (en) | 2014-07-09 |
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| CN104409846A (en) * | 2014-11-27 | 2015-03-11 | 张永超 | Wave transmission metamaterial antenna cover |
| CN106876975A (en) * | 2017-03-03 | 2017-06-20 | 哈尔滨工业大学 | A kind of individual layer double frequency assembled unit and the frequency-selective surfaces containing the unit |
| CN111129780B (en) * | 2019-12-28 | 2021-11-23 | 华南理工大学 | Structure for improving oblique incidence characteristic of glass material in 5G millimeter wave frequency band |
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| US7071889B2 (en) * | 2001-08-06 | 2006-07-04 | Actiontec Electronics, Inc. | Low frequency enhanced frequency selective surface technology and applications |
| WO2006015478A1 (en) * | 2004-08-09 | 2006-02-16 | Ontario Centres Of Excellence Inc. | Negative-refraction metamaterials using continuous metallic grids over ground for controlling and guiding electromagnetic radiation |
| US20100097048A1 (en) * | 2007-01-04 | 2010-04-22 | Werner Douglas H | Passive detection of analytes |
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Effective date of registration: 20210420 Address after: 518057 2 / F, software building, No.9, Gaoxin Middle Road, Nanshan District, Shenzhen, Guangdong Province Patentee after: KUANG-CHI INSTITUTE OF ADVANCED TECHNOLOGY Address before: 518034. A, 18B, CIC international business center, 1061 Mei Xiang Road, Shenzhen, Guangdong, Futian District Patentee before: KUANG-CHI INNOVATIVE TECHNOLOGY Ltd. |