CN103296402A - Low-loss metamaterial antenna housing - Google Patents
Low-loss metamaterial antenna housing Download PDFInfo
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- CN103296402A CN103296402A CN2012100504201A CN201210050420A CN103296402A CN 103296402 A CN103296402 A CN 103296402A CN 2012100504201 A CN2012100504201 A CN 2012100504201A CN 201210050420 A CN201210050420 A CN 201210050420A CN 103296402 A CN103296402 A CN 103296402A
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Abstract
The invention relates to a low-loss metamaterial antenna housing which comprises at least one metamaterial piece layer. Each metamaterial piece layer comprises a first substrate and a plurality of man-made micro-structures with the same size, wherein the man-made micro-structures are distributed on each first substrate in an array mode. The man-made micro-structures are of cross-shaped structures. Due to the fact that the man-made micro-structures in specific shapes are attached to the substrates, required electromagnetic response is obtained, the wave-transparent performance of the antenna housing based on the metamaterial is strengthened, and anti-jamming capability is improved. Meanwhile, the loss of the antenna housing nearby the frequency point range of 30GHz is quite low, and wave-transparent efficiency is quite high.
Description
Technical field
The present invention relates to radome, more particularly, relate to the super material radome of low-loss.
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, and loss is serious.
Summary of the invention
The technical problem to be solved in the present invention is that relatively poor at the above-mentioned wave penetrate capability of prior art, the defective that loss is serious provides a kind of low-loss super material radome.
The technical solution adopted for the present invention to solve the technical problems is: construct the super material radome of a kind of low-loss, 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 is decussate texture.
In the super material radome of low-loss of the present invention, each super sheet of material also comprises second substrate that is covered on described a plurality of artificial micro-structural.
In the super material radome of low-loss 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.
In the super material radome of low-loss of the present invention, the length of each super material cell and the wide 2mm that is.
In the super material radome of low-loss of the present invention, each decussate texture is made of two wires of vertically dividing equally.
In the super material radome of low-loss of the present invention, the length of every wire is 1.4～1.8mm, and width is 0.2mm, and thickness is 0.018mm.
In the super material radome of low-loss of the present invention, the distance between the border of the super material cell at each artificial micro-structural and its place is 0.2mm.
In the super material radome of low-loss of the present invention, the thickness of described first substrate and second substrate is 0.2mm.
In the super material radome of low-loss of the present invention, described first substrate and second substrate are made by the F4B composite material.
In the super material radome of low-loss of the present invention, described artificial micro-structural is attached on the base material by etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method.
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 radome of the present invention is near 33GHz, and loss is minimum, and saturating weave efficiency is very high.
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 the low-loss of one embodiment of the invention;
Fig. 2 is the structural representation that is piled up the super material radome of the low-loss 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 artificial micro-structural;
Fig. 5-the 6th, the S parameter schematic diagram of the super material radome of low-loss;
Fig. 7-the 8th, the change curve of the magnetic permeability μ of the super material radome of low-loss.
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 the super material radome of a kind of low-loss, 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, the length of each super material cell and wide be b=2mm.Here 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.The quantity of the super material cell shown in the figure is only for signal, for the arrangement mode of artificial micro-structural is described, the quantity of super material cell do not limited, and can determine the size of radome according to actual needs, thus the quantity of definite super material cell.
As shown in Figure 4, each artificial micro-structural 30 is decussate texture, and decussate texture is made of two wires of vertically dividing equally mutually, and width wiry is w=0.2mm, and length is a=1.4～1.8mm.The length of the super material cell at each artificial micro-structural 30 place and wide be b=2mm.Distance between the border of the super material cell at each artificial micro-structural and its place is c=0.1～0.3mm.
The thickness of first substrate 10 and second substrate 20 is 0.4mm, 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 5, used first substrate 10 and second substrate 20 are the F4B composite material, S11_1, S21_1 are the simulation result when not adhering to artificial micro-structural on the substrate, and S11, S21 are the simulation result when adhering to artificial micro-structural on the substrate.Can see that near the S11 33GHz is little more a lot of than S11_1, also is that reflected energy is few.Near the part amplification of 33GHz obtains Fig. 6 among Fig. 5, and as can be known, radome is operated in the 33GHz place, and S21 (0.054222) is big more a lot of than S21_1 (0.21235), just means that also transmission effects is very good, can get the ripple rate up to 98.75% according to data computation among the figure.Can get the situation of magnetic permeability μ by the CST simulation algorithm, shown in Fig. 7-8, the imaginary part of μ is-0.0008751 at 33.01GHz, and real part is-0.9749.Also namely, magnetic permeability μ is low to moderate 0.0008751 in the loss at 33.01GHz frequency place, and is fairly good with the coupling of air, so saturating weave efficiency can reach very high standard.
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.
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 low-loss 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 is decussate texture.
2. the super material radome of low-loss 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 low-loss 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 low-loss according to claim 3 is characterized in that, the length of each super material cell and the wide 2mm that is.
5. the super material radome of low-loss according to claim 4 is characterized in that, each decussate texture is made of two wires of vertically dividing equally.
6. the super material radome of low-loss according to claim 5 is characterized in that, the length of every wire is 1.4～1.8mm, and width is 0.2mm, and thickness is 0.018mm.
7. the super material radome of low-loss according to claim 5 is characterized in that, the distance between the border of the super material cell at each artificial micro-structural and its place is 0.1～0.3mm.
8. the super material radome of low-loss according to claim 7 is characterized in that, the thickness of described first substrate and second substrate is 0.4mm.
9. the super material radome of low-loss according to claim 8 is characterized in that, described first substrate and second substrate are made by the F4B composite material.
10. the super material radome of low-loss according to claim 1 is characterized in that, described artificial micro-structural is attached on the base material by etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100504201A CN103296402A (en) | 2012-02-29 | 2012-02-29 | Low-loss metamaterial antenna housing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100504201A CN103296402A (en) | 2012-02-29 | 2012-02-29 | Low-loss metamaterial antenna housing |
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| CN103296402A true CN103296402A (en) | 2013-09-11 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700948A (en) * | 2014-01-10 | 2014-04-02 | 厦门大学 | Dual-cantilever E-shaped reversed embedded left-handed metamaterial with adjustable cross metal line structure |
| CN104638380A (en) * | 2013-11-13 | 2015-05-20 | 深圳光启创新技术有限公司 | Antenna baffle board and low-sidelobe antenna |
| CN105576368A (en) * | 2014-10-20 | 2016-05-11 | 波音公司 | Antenna electromagnetic radiation steering system |
| CN107331972A (en) * | 2017-06-30 | 2017-11-07 | 西安电子科技大学 | Artificial super surface electromagnetic wave amplitude modulator based on graphene |
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| US5208603A (en) * | 1990-06-15 | 1993-05-04 | The Boeing Company | Frequency selective surface (FSS) |
| US20050062673A1 (en) * | 2003-09-19 | 2005-03-24 | National Taiwan University Of Science And Technology | Method and apparatus for improving antenna radiation patterns |
| CN101826657A (en) * | 2009-03-06 | 2010-09-08 | 财团法人工业技术研究院 | Dual-polarized antenna structure, antenna housing and designing method thereof |
| CN102035064A (en) * | 2009-09-30 | 2011-04-27 | 深圳富泰宏精密工业有限公司 | Antenna assembly, manufacturing method thereof and electronic device shell with antenna assembly |
| CN202150533U (en) * | 2011-07-29 | 2012-02-22 | 深圳光启高等理工研究院 | Resonant cavity |
-
2012
- 2012-02-29 CN CN2012100504201A patent/CN103296402A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5208603A (en) * | 1990-06-15 | 1993-05-04 | The Boeing Company | Frequency selective surface (FSS) |
| US20050062673A1 (en) * | 2003-09-19 | 2005-03-24 | National Taiwan University Of Science And Technology | Method and apparatus for improving antenna radiation patterns |
| CN101826657A (en) * | 2009-03-06 | 2010-09-08 | 财团法人工业技术研究院 | Dual-polarized antenna structure, antenna housing and designing method thereof |
| CN102035064A (en) * | 2009-09-30 | 2011-04-27 | 深圳富泰宏精密工业有限公司 | Antenna assembly, manufacturing method thereof and electronic device shell with antenna assembly |
| CN202150533U (en) * | 2011-07-29 | 2012-02-22 | 深圳光启高等理工研究院 | Resonant cavity |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104638380A (en) * | 2013-11-13 | 2015-05-20 | 深圳光启创新技术有限公司 | Antenna baffle board and low-sidelobe antenna |
| CN103700948A (en) * | 2014-01-10 | 2014-04-02 | 厦门大学 | Dual-cantilever E-shaped reversed embedded left-handed metamaterial with adjustable cross metal line structure |
| CN103700948B (en) * | 2014-01-10 | 2016-08-03 | 厦门大学 | Double cantilever E types reversely nested LHM with adjustable cross metal wire structure |
| CN105576368A (en) * | 2014-10-20 | 2016-05-11 | 波音公司 | Antenna electromagnetic radiation steering system |
| CN107331972A (en) * | 2017-06-30 | 2017-11-07 | 西安电子科技大学 | Artificial super surface electromagnetic wave amplitude modulator based on graphene |
| CN107331972B (en) * | 2017-06-30 | 2020-04-21 | 西安电子科技大学 | Artificial super-surface electromagnetic wave amplitude modulator based on graphene |
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Application publication date: 20130911 |