CN102769197B - Wave-transmitting material and radome and antenna system both employing same - Google Patents
Wave-transmitting material and radome and antenna system both employing same Download PDFInfo
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- CN102769197B CN102769197B CN201210220503.0A CN201210220503A CN102769197B CN 102769197 B CN102769197 B CN 102769197B CN 201210220503 A CN201210220503 A CN 201210220503A CN 102769197 B CN102769197 B CN 102769197B
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- cannelure
- electromagnetic wave
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- wave transparent
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Abstract
The invention relates to a wave-transmitting material and a radome and an antenna system both employing the same. The wave-transmitting material comprises at least one baseplate made of a non-metal material and a metal foil attached to the surface of the baseplate, wherein a plurality of circular grooves are hollowed on the metal foil. The wave-transmitting material provided by the invention has wide-band wave-transmitting performance, so that the radome and the antenna system both employing the wave-transmitting material can achieve physical protection of an antenna and efficiently allow electromagnetic wave to transmit without influencing the operating efficiency of the antenna.
Description
Technical field
The present invention relates to electromagnetic material field, more particularly, relate to a kind of electromagnetic wave transparent material and radome thereof and antenna system.
Background technology
Electromagnetic wave transparent material is widely used in radome, in the equipment such as antenna windows, on the one hand as the material with certain mechanical strength and other weather resistances, for the electromagnetic wave signals such as antenna are launched, receiving device is protected, make it from wind and rain, ice and snow, the impact of sand and dust and solar radiation etc., make antenna system service behaviour more stable, reliably, alleviate the wearing and tearing of antenna system, corrosion and aging, increase the service life, on the other hand in order to affect the signal of antenna transmission as little as possible, need that there is good wave penetrate capability, general employing wave penetrate capability is good, loss tangent is little, the material that mechanical strength is high, as fiberglass, epoxy resin, high molecular polymer etc.
But although these materials existing have certain wave transparent function, wave transparent frequency band is all narrower usually, limits its range of application.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned defect of prior art, provides a kind of electromagnetic wave transparent material and radome thereof and antenna system.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of electromagnetic wave transparent material, and comprise the substrate that at least one nonmetallic materials is made and the metal forming be attached on described substrate surface, in described metal forming, hollow out has multiple cannelure.
In electromagnetic wave transparent material of the present invention, described electromagnetic wave transparent material comprises three substrates stacked gradually, and be positioned at middle its front and back of substrate and be attached with described metal forming respectively, in each described metal forming, hollow out has multiple cannelure.
In electromagnetic wave transparent material of the present invention, described cannelure is regular hexagon groove, and the outline of described cannelure and Internal periphery are the regular hexagon and common midpoint that are parallel to each other.
In electromagnetic wave transparent material of the present invention, described cannelure is periodic arrangement in described metal forming.
In electromagnetic wave transparent material of the present invention, described orthohexagonal cannelure with the direction at wherein place, any limit be row, to become the mode periodic arrangement of the direction of 30 degree for arranging with described line direction.
In electromagnetic wave transparent material of the present invention, the column pitch of described cannelure is greater than three times of the orthohexagonal length of side of described cannelure outline and is less than six times of this length of side, and the line space of described cannelure is greater than the orthohexagonal length of side of described cannelure outline
doubly and be less than this length of side
doubly.
In electromagnetic wave transparent material of the present invention, the column pitch of described cannelure is line space
doubly.
In electromagnetic wave transparent material of the present invention, the orthohexagonal length of side of described cannelure outline is 2.5mm, and the orthohexagonal length of side of Internal periphery is
the groove width of cannelure is 1mm, and line space is
column pitch is
In electromagnetic wave transparent material of the present invention, forming described metal forming is gold, silver or copper, or is the alloy containing gold, silver or copper.
The present invention also provides a kind of radome, for being located at antenna body, comprises electromagnetic wave transparent material described as mentioned above.
The present invention also provides a kind of antenna system, and comprise antenna body and radome as above, described radome covers on antenna body, and interval predeterminable range with it.
Implement technical scheme of the present invention; there is following beneficial effect: electromagnetic wave transparent material of the present invention has wideband wave penetrate capability; therefore there is the radome of this electromagnetic wave transparent material and antenna system while physical protection is carried out to antenna; efficiently through electromagnetic wave, can not affect the operating efficiency of antenna.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the cutaway view according to electromagnetic wave transparent material of the present invention;
Fig. 2 is the vertical view of the metal forming of electromagnetic wave transparent material described in Fig. 1;
Fig. 3 is the schematic diagram of the periodic arrangement mode of cannelure in Fig. 2;
Fig. 4 is the scale diagrams of the cannelure in Fig. 2;
Fig. 5 is the frequency response analogous diagram of the electromagnetic wave transparent material with metal forming shown in Fig. 2.
Embodiment
The invention provides a kind of electromagnetic wave transparent material, comprise the substrate that at least one nonmetallic materials is made and the metal forming of adhering on the surface of the substrate.Here the nonmetallic materials manufacturing substrate have multiple choices, such as pottery, FR4, F4B(polytetrafluoroethylene), HDPE(high density polyethylene (HDPE), High Density Polyethylene), ABS(Acrylonitrile Butadiene Styrene), ferroelectric material or ferromagnetic material etc.
As shown in Figure 1, the electromagnetic wave transparent material 3 in the present embodiment has three layers of substrate superposed successively 1, and the obverse and reverse contacted with two other substrate respectively of middle substrate 1 is attached with layer of metal paper tinsel 2 respectively.Three laminar substrates 1 are pressed into an entirety, when needs wave penetrate capability is stronger or intensity needs, can superposes multiple such three laminar substrates and be pressed into one; Also multilager base plate can be had to laminate successively, all can arrange this metal forming 2 between the surface that arbitrary neighborhood two substrates contacts, which two adjacent substrate is metal forming 2 be arranged between depending on real needs.
As shown in Figure 2, on it, hollow out has multiple cannelure 20 to metal forming 2.The material of metal forming 2 can be the metal material that the electric conductivity such as gold, silver, copper is good, or main component is one or both the alloy material in gold, silver, copper.In the present invention, preferably copper or silver.
In preferred embodiment, cannelure 20 such as is at the regular hexagon of groove width, and namely its outline and Internal periphery are all regular hexagons, two regular hexagon common midpoint and have at least an opposite side to be parallel to each other, thus forms the identical cannelure of groove width.Certainly, cannelure 20 also can be other shapes, such as annulus, elliptical ring, triangle ring, square loop or other arbitrary polygon rings, even any erose cannelure.As long as hollow out has multiple such cannelure in metal forming 2, and according to the arrangement of certain rule, certain wave transmission effect can be reached.
Further, the cannelure 20 of the present embodiment according to being arranged in metal forming 2 definitely periodic law, such as rectangular array arrangement, namely with a direction be row, perpendicular to the direction of row for arrange and arranging by certain line space and column pitch; Also can annular spread, namely according to certain regular increase radius, at circumferentially arrangement cannelure corresponding to each radius.In the present embodiment, just to orthohexagonal cannelure 20, preferred parallel quadrangular array is arranged, so-called parallelogram array arrangement, namely any two row are got any two row totally four cannelures, what four cannelure central points of its correspondence were formed is parallelogram (not comprising the situation that angle becomes 90 degree), and non-rectangle.
As shown in Figure 3, the cannelure 20 of the present embodiment, with the direction at the place, orthohexagonal arbitrary limit of arbitrary cannelure outline or Internal periphery be row, to become the direction of 30 degree to carry out parallelogram array arrangement for column direction with line direction, the central point O of adjacent two cannelures 20 on the Hang Jian Ju ⊿ y(of arbitrary neighborhood two row and same row
1, O
3between distance) all equal, between the row that arbitrary neighborhood two arranges apart from ⊿ x(namely with the central point O of two cannelures 20 adjacent in a line
2, O
4between distance) all equal.The line of the central point of adjacent rows, adjacent two row cannelures 20 forms the parallelogram of acute angle theta=30 degree.
If the orthohexagonal length of side of cannelure outline is A, connect to make to leave metal between adjacent annular groove 20, the Lie Jian Ju ⊿ x of cannelure must be greater than 3A, and Hang Jian Ju ⊿ y must be greater than
simultaneously in order to arrange that cannelure is to improve wave transmission effect as much as possible in metal forming 2, the metal connector between adjacent annular groove should be not enough to place another cannelure, and therefore the Lie Jian Ju ⊿ x of cannelure is preferably less than 6A, and Hang Jian Ju ⊿ y is less than
in addition, in order to make the width of metal connector equal everywhere, the Lie Jian Ju ⊿ x of preferred cannelure is Hang Jian Ju ⊿ y
doubly.
Metal forming 2, after cannelure hollow out as above, forms the regular hexagon sheet metal 22 of the network structure 21 being similar to honeycomb as shown in Figure 2 and each cannelure 20 inside (also namely cancellated each grid is inner).There is the substrate of this hollow out metal forming 2, good frequency selectivity wave transparent function can be obtained.
Below, the effect of electromagnetic wave transparent material of the present invention will be described in conjunction with specific embodiments.In one embodiment, each parameter value in Fig. 3, Fig. 4 is respectively: the orthohexagonal length of side A=2.5mm of cannelure 20 outline, total height
the orthohexagonal length of side of Internal periphery
mm, highly
the Cao Kuan ⊿ h=1mm of cannelure 20, Hang Jian Ju ⊿ y is
lie Jian Ju ⊿ x is
the width w=1mm of the metal connector between cannelure and cannelure, the silk thread of man-made microstructure is copper cash and thickness is 0.018mm, and the thickness of middle one deck of three laminar substrates is 1.5mm, and material is FR4, DIELECTRIC CONSTANT ε
r2=2.65, loss tangent tan δ=0.001, the top substrate layer of Intermediate substrate both sides and the thickness of underlying substrate are 1.25mm, and material is FR4, DIELECTRIC CONSTANT ε
r2=2.65, loss tangent tan δ=0.001.The gross thickness of whole electromagnetic wave transparent material is 4.036mm.
Emulate the electromagnetic wave transparent material with above-mentioned parameter, its S parameter analogous diagram as shown in Figure 5.Can be seen by Fig. 5, above-mentioned Meta Materials 17.8GHz, 21.7GHz two place S11 reach minimum, and be all less than-50dB, in 16 ~ 24GHz frequency range, S21 is 0 substantially, form band logical, therefore the frequency band range of this section about 8GHz electromagnetic wave all can substantially loss-free through, there is wideband wave transparent and formed, be highly suitable for radome etc. has requirement occasion to wave transmission rate.
Therefore; the present invention also provides a kind of radome; this radome is made up of above-mentioned electromagnetic wave transparent material 3; be used for covering on antenna body outside; while antenna body is played a protective role; to the electromagnetic wave of frequency near above-mentioned meta-material resonant frequency do not allow through, frequency the electromagnetic wave of other scopes then allow through.
It should be noted that, the shape of radome can be the tabular identical with electromagnetic wave transparent material 3 shape in accompanying drawing, also the shape of designing antenna cover can be carried out according to the actual requirements, the shape (conformal radome) etc. being such as designed to spherical shape or mate with antenna pattern, also do not get rid of the shape using multiple plate-like structure to be spliced into needs, the present invention is not restricted this.
The present invention also provides a kind of antenna system, comprises antenna body, and radome as described above, and radome covers on antenna body.Antenna body comprises radiation source, feed element etc., and concrete formation can consult correlation technique data, and the present invention is not restricted this.Antenna body can be such as but not limited to plate aerial, bridge antenna.
In addition, time when this radome and wave transparent frequency shift corresponding to antenna system or not in the wave transparent frequency range of above-mentioned 16 ~ 24GHz, the parameters such as the shape of cannelure, size, arrangement mode can be regulated, corresponding wave transparent frequency can be made to have certain adjustment, to adapt to various different application demand.
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 it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.
Claims (6)
1. an electromagnetic wave transparent material, it is characterized in that, comprise the substrate that at least one nonmetallic materials is made and the metal forming be attached on described substrate surface, in described metal forming, hollow out has multiple cannelure, described cannelure is regular hexagon groove, the outline of described cannelure and Internal periphery are the regular hexagon and common midpoint that are parallel to each other, described cannelure is periodic arrangement in described metal forming, described orthohexagonal cannelure with the direction at wherein place, any limit for row, to become the mode periodic arrangement of the direction of 30 degree for arranging with described line direction, the column pitch of described cannelure is line space
doubly, the orthohexagonal length of side of described cannelure outline is 2.5mm, and the orthohexagonal length of side of Internal periphery is
the groove width of cannelure is 1mm, and line space is
column pitch is
2. electromagnetic wave transparent material according to claim 1, is characterized in that, described electromagnetic wave transparent material comprises three substrates stacked gradually, and be positioned at middle its front and back of substrate and be attached with described metal forming respectively, in each described metal forming, hollow out has multiple cannelure.
3. electromagnetic wave transparent material according to claim 1, it is characterized in that, the column pitch of described cannelure is greater than three times of the orthohexagonal length of side of described cannelure outline and is less than six times of this length of side, and the line space of described cannelure is greater than the orthohexagonal length of side of described cannelure outline
doubly and be less than this length of side
doubly.
4. electromagnetic wave transparent material according to claim 1, is characterized in that, forming described metal forming is gold, silver or copper, or is the alloy containing gold, silver or copper.
5. a radome, is characterized in that, for being located at antenna body, comprises the electromagnetic wave transparent material had described in any one of Claims 1-4.
6. an antenna system, is characterized in that, comprise antenna body and radome according to claim 5, described radome covers on antenna body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210220503.0A CN102769197B (en) | 2012-06-29 | 2012-06-29 | Wave-transmitting material and radome and antenna system both employing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210220503.0A CN102769197B (en) | 2012-06-29 | 2012-06-29 | Wave-transmitting material and radome and antenna system both employing same |
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| Publication Number | Publication Date |
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| CN102769197A CN102769197A (en) | 2012-11-07 |
| CN102769197B true CN102769197B (en) | 2015-05-27 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104347951B (en) * | 2013-08-01 | 2017-10-10 | 深圳光启创新技术有限公司 | A kind of Meta Materials |
| CN104347916B (en) * | 2013-08-01 | 2018-08-14 | 深圳光启创新技术有限公司 | A kind of Meta Materials |
| CN104934716B (en) * | 2014-03-18 | 2024-05-07 | 深圳光启高等理工研究院 | Wave-transparent metamaterial with resistance, antenna housing and antenna system |
| CN105261840A (en) * | 2015-11-18 | 2016-01-20 | 中国科学院国家空间科学中心 | Micro-strip reflective array antenna with honeycomb-like unit arrangement |
| CN110808464B (en) * | 2018-08-06 | 2021-11-30 | 航天特种材料及工艺技术研究所 | Wave-transparent/stealth integrated metamaterial structure and antenna housing and antenna window with same |
| CN114274608A (en) * | 2021-12-29 | 2022-04-05 | 江苏领瑞新材料科技有限公司 | Wave-absorbing stealth material capable of resisting radar scanning and application thereof |
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| CN101853974A (en) * | 2010-04-07 | 2010-10-06 | 北京航空航天大学 | Ultra wide band submillimeter-wave frequency selection surface |
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| CN101853974A (en) * | 2010-04-07 | 2010-10-06 | 北京航空航天大学 | Ultra wide band submillimeter-wave frequency selection surface |
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| Design of Frequency Selective Windows for Improved Indoor Outdoor Communication;Mats Gustafsson, Anders Karlsson,等;《IEEE transactions on antennas and propagation》;20060630;第54卷(第6期);1897-1900 * |
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Effective date of registration: 20210712 Address after: 2 / F, software building, No.9, Gaoxin Zhongyi Road, Nanshan District, Shenzhen City, Guangdong Province Patentee after: KUANG-CHI INSTITUTE OF ADVANCED TECHNOLOGY Address before: 18B, building a, CIC international business center, 1061 Xiangmei Road, Futian District, Shenzhen, Guangdong 518034 Patentee before: KUANG-CHI INNOVATIVE TECHNOLOGY Ltd. |
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