CN102769197A - 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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- CN102769197A CN102769197A CN2012102205030A CN201210220503A CN102769197A CN 102769197 A CN102769197 A CN 102769197A CN 2012102205030 A CN2012102205030 A CN 2012102205030A CN 201210220503 A CN201210220503 A CN 201210220503A CN 102769197 A CN102769197 A CN 102769197A
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- cannelure
- electromagnetic wave
- transparent material
- 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 the 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 the equipment such as radome, antenna windows; On the one hand as material with certain mechanical strength and other weather resistances; Protect for the emission of electromagnetic wave signals such as antenna, receiving device, make it avoid the influence of wind and rain, ice and snow, sand and dust and solar radiation etc., make the antenna system service behaviour more stable, reliable; Alleviate wearing and tearing, the corrosion and aging of antenna system; Increase the service life, in order to influence the signal of antenna emission less as far as possible, need have good wave penetrate capability on the other hand; The general employing material that wave penetrate capability is good, loss tangent is little, mechanical strength is high is like fiberglass, epoxy resin, high molecular polymer etc.
Though but existing these materials have certain wave energy that passes through, it is all narrower to pass through the ripple frequency band usually, has limited its range of application.
Summary of the invention
The technical problem that the present invention will solve is that the above-mentioned defective to 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: a kind of electromagnetic wave transparent material is provided, comprises the substrate that at least one nonmetallic materials is processed and be attached to the metal forming on the said substrate surface, hollow out has a plurality of cannelures on the said metal forming.
In electromagnetic wave transparent material of the present invention, said electromagnetic wave transparent material comprises three substrates that stack gradually, and its front and back of substrate in the middle of being positioned at is attached with said metal forming respectively, and hollow out has a plurality of cannelures on each said metal forming.
In electromagnetic wave transparent material of the present invention, said cannelure is the regular hexagon groove, and the outline of said cannelure and interior profile are regular hexagon and the CMP that is parallel to each other.
In electromagnetic wave transparent material of the present invention, said cannelure is periodically arranged on said metal forming.
In electromagnetic wave transparent material of the present invention, said orthohexagonal cannelure is row, is that the mode of row is periodically arranged to become 30 directions spent with said line direction with the direction at place, any limit wherein.
In electromagnetic wave transparent material of the present invention; The column pitch of said cannelure is greater than three times of the orthohexagonal length of side of said cannelure outline and less than six times of this length of side, and the line space of said cannelure greater than
of the orthohexagonal length of side of said cannelure outline doubly and less than
of this length of side doubly.
In electromagnetic wave transparent material of the present invention, the column pitch of said cannelure be line space
doubly.
In electromagnetic wave transparent material of the present invention; The orthohexagonal length of side of said cannelure outline is 2.5mm; The orthohexagonal length of side of interior profile is 1mm for the groove width of
cannelure, and line space is that
column pitch is
In electromagnetic wave transparent material of the present invention, constituting said metal forming is gold, silver or copper, perhaps for containing the alloy of gold, silver or copper.
The present invention also provides a kind of radome, is used to be located at antenna body, comprises described as stated electromagnetic wave transparent material.
The present invention also provides a kind of antenna system, comprises antenna body and aforesaid radome, and said radome covers on the antenna body, and predeterminable range at interval with it.
The technical scheme of embodiment of the present invention; Have following beneficial effect: electromagnetic wave transparent material of the present invention has the wideband wave penetrate capability; Therefore the radome and the antenna system that have this electromagnetic wave transparent material are when carrying out physical protection to antenna; Can see through electromagnetic wave efficiently, not influence the operating efficiency of antenna.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the 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 the said electromagnetic wave transparent material of Fig. 1;
Fig. 3 is the sketch map of the periodicity arrangement mode of the cannelure among Fig. 2;
Fig. 4 is the size sketch map of the cannelure among Fig. 2;
Fig. 5 is the frequency response analogous diagram with electromagnetic wave transparent material of metal forming shown in Figure 2.
Embodiment
The invention provides a kind of electromagnetic wave transparent material, comprise substrate that at least one nonmetallic materials is processed and attached to the metal forming on the substrate surface.Here the nonmetallic materials of making substrate have multiple choices; For example 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 1 of stack successively, middle substrate 1 be attached with layer of metal paper tinsel 2 respectively respectively with on the contacted obverse and reverse of two other substrate.Three laminar substrates 1 are pressed into an integral body, and when stronger or intensity needed when the needs wave penetrate capability, a plurality of three such laminar substrates and be pressed into one can superpose; Also can have multilager base plate to laminate successively, any adjacent two substrates all can be provided with this metal forming 2 between the contacted surface, and metal forming 2 is arranged on looks real needs between which two adjacent substrate and decide.
Metal forming 2 is as shown in Figure 2, and hollow out has a plurality of cannelures 20 on it.The material of metal forming 2 can be electric conductivity good metal materials such as gold, silver, copper, and perhaps main component is one or both the alloy material in gold, silver, the copper.Among the present invention, preferably copper or silver.
In the preferred embodiment, cannelure 20 such as is at the regular hexagon of groove width, and promptly its outline and interior profile all are regular hexagons, two regular hexagon CMPs and have at least an opposite side to be parallel to each other, thus form the identical cannelure of groove width.Certainly, cannelure 20 also can be other shapes, for example annulus, elliptical ring, triangle ring, square loop or other arbitrary polygon rings, even any erose cannelure.As long as hollow out has a plurality of such cannelures on metal forming 2, and arranges according to certain rules, can reach certain ripple effect thoroughly.
Further, the cannelure 20 of present embodiment according to be arranged on the metal forming 2 definitely periodic law, and for example rectangular array is arranged, and promptly is row, is row and by the arrangement of certain line space and column pitch perpendicular to the direction of row with a direction; Also can annular spread, promptly increase progressively radius, on the corresponding circumference of each radius, arrange cannelure according to certain rules.In the present embodiment; Over against orthohexagonal cannelure 20; Preferred parallel quadrangle array arrangement, so-called parallelogram array arrangement is got any two row totally four cannelures on promptly any two row; What its four corresponding cannelure central points constituted is parallelogram (not comprising that angle becomes the situation of 90 degree), and non-rectangle.
As shown in Figure 3; The cannelure 20 of present embodiment; Be row, be that column direction carries out the parallelogram array arrangement that with the direction at the place, orthohexagonal arbitrary limit of arbitrary cannelure outline or interior profile adjacent two capable Hang Jian Ju ⊿ y (are the same central point O that lists adjacent two cannelures 20 arbitrarily with the direction that becomes 30 degree with line direction
1, O
3Between distance) all equate, arbitrarily between the row of adjacent two row apart from ⊿ x (promptly with the central point O of adjacent two cannelures 20 in the delegation
2, O
4Between distance) all equate.The line of the central point of adjacent two row, adjacent two row cannelures 20 constitutes the parallelogram of acute angle, theta=30 degree.
If the orthohexagonal length of side of cannelure outline is A; Leave the metal connection between the adjacent annular groove 20 in order to make; 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 on metal forming 2 that as much as possible cannelure passes through the ripple effect to improve; Metal coupling part between the adjacent annular groove should be not enough to place another cannelure; Therefore the Lie Jian Ju ⊿ x of cannelure is preferably less than 6A; Hang Jian Ju ⊿ y less than
in addition; For the width that makes the metal coupling part equates everywhere, between the row of preferred cannelure apart from ⊿ x be between row apart from ⊿ y
doubly.
Metal forming 2 forms the regular hexagon sheet metal 22 of the network structure that is similar to honeycomb 21 as shown in Figure 2 and each cannelure 20 inside (also being that cancellated each grid is inner) after aforesaid cannelure hollow out.Substrate with this hollow out metal forming 2 can obtain good frequency selectivity and pass through wave energy.
Below, with combining specific embodiment that the effect of electromagnetic wave transparent material of the present invention is described.In one embodiment, each parameter value among Fig. 3, Fig. 4 is respectively: the orthohexagonal length of side A=2.5mm of cannelure 20 outlines, total height
The orthohexagonal length of side of interior profile
Mm, highly
The Cao Kuan ⊿ h=1mm of cannelure 20, Hang Jian Ju ⊿ y does
Lie Jian Ju ⊿ x does
The width w=1mm of the metal coupling part between cannelure and the cannelure, the silk thread of artificial micro-structural are 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 CONSTANTS
R2=2.65, loss tangent tan δ=0.001, the thickness of the top substrate layer of Intermediate substrate both sides and following laminar substrate is 1.25mm, material is FR4, DIELECTRIC CONSTANTS
R2=2.65, loss tangent tan δ=0.001.The gross thickness of whole electromagnetic wave transparent material is 4.036mm.
Electromagnetic wave transparent material to having above-mentioned parameter carries out emulation, and figure is as shown in Figure 5 for its S parameters simulation.Can see by Fig. 5; Above-mentioned ultra material reaches minimum at 17.8GHz, 21.7GHz two S11 of place, and all less than-50dB, and S21 is 0 basically in 16～24GHz frequency range; It is logical to form band; Therefore the electromagnetic wave at the frequency band range of the about 8GHz of this section all can loss-freely basically see through, and has wideband and passes through ripple and form, and is highly suitable for radome etc. has requirement to ripple rate thoroughly occasion.
Therefore; The present invention also provides a kind of radome; This radome is processed by above-mentioned electromagnetic wave transparent material 3, is used for covering on the antenna body outside, when antenna body is played a protective role; Near the electromagnetic wave of frequency above-mentioned ultra material resonances frequency do not allowed to see through, and frequency then allows to see through at the electromagnetic wave of other scopes.
Need to prove; The shape of radome can for accompanying drawing in the identical tabular of electromagnetic wave transparent material 3 shapes; 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., not getting rid of yet and use a plurality of plate-like structures to be spliced into the shape of needs, the present invention does not limit this.
The present invention also provides a kind of antenna system, comprises antenna body, and radome as indicated above, and radome covers on the antenna body.Antenna body comprises radiation source, feed element etc., and concrete formation can be consulted the correlation technique data, and the present invention does not limit this.Antenna body can be such as but not limited to plate aerial, bridge antenna.
In addition; When corresponding the passing through of this radome and antenna system wave frequency changes or not above-mentioned 16～24GHz pass through in the wave frequency scope time; Can regulate the parameter such as shape, size, arrangement mode of cannelure; Can make the corresponding wave frequency of passing through that certain adjustment is arranged, to adapt to various application demand.
Combine accompanying drawing that embodiments of the invention are described above; But the present invention is not limited to above-mentioned embodiment, and above-mentioned embodiment only is schematically, rather than 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. an electromagnetic wave transparent material is characterized in that, comprises the substrate that at least one nonmetallic materials is processed and is attached to the metal forming on the said substrate surface, and hollow out has a plurality of cannelures on the said metal forming.
2. electromagnetic wave transparent material according to claim 1 is characterized in that, said electromagnetic wave transparent material comprises three substrates that stack gradually, and its front and back of substrate in the middle of being positioned at is attached with said metal forming respectively, and hollow out has a plurality of cannelures on each said metal forming.
3. electromagnetic wave transparent material according to claim 1 is characterized in that, said cannelure is the regular hexagon groove, and the outline of said cannelure and interior profile are regular hexagon and the CMP that is parallel to each other.
4. electromagnetic wave transparent material according to claim 3 is characterized in that, said cannelure is periodically arranged on said metal forming.
5. electromagnetic wave transparent material according to claim 4 is characterized in that, said orthohexagonal cannelure is row, is that the mode of row is periodically arranged to become 30 directions spent with said line direction with the direction at place, any limit wherein.
6. electromagnetic wave transparent material according to claim 5; It is characterized in that; The column pitch of said cannelure is greater than three times of the orthohexagonal length of side of said cannelure outline and less than six times of this length of side, and the line space of said cannelure greater than
of the orthohexagonal length of side of said cannelure outline doubly and less than
of this length of side doubly.
7. electromagnetic wave transparent material according to claim 5; It is characterized in that, the column pitch of said cannelure be line space
doubly.
8. electromagnetic wave transparent material according to claim 7; It is characterized in that; The orthohexagonal length of side of said cannelure outline is 2.5mm; The orthohexagonal length of side of interior profile is 1mm for the groove width of
cannelure, and line space is that
column pitch is
8, electromagnetic wave transparent material according to claim 1 is characterized in that, constituting said metal forming is gold, silver or copper, perhaps for containing the alloy of gold, silver or copper.
9. a radome is characterized in that, is used to be located at antenna body, comprises having each described electromagnetic wave transparent material of claim 1 to 8.
10. an antenna system is characterized in that, comprises the described radome of antenna body and claim 9, and said radome covers on the antenna body.
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|---|---|---|---|
| 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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| CN102769197A true CN102769197A (en) | 2012-11-07 |
| CN102769197B CN102769197B (en) | 2015-05-27 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104347916A (en) * | 2013-08-01 | 2015-02-11 | 深圳光启创新技术有限公司 | Metamaterial |
| CN104347951A (en) * | 2013-08-01 | 2015-02-11 | 深圳光启创新技术有限公司 | Meta-material |
| CN104934716A (en) * | 2014-03-18 | 2015-09-23 | 深圳光启创新技术有限公司 | Bandstop wave-transparent metamaterial, antenna cover 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 |
| CN110808464A (en) * | 2018-08-06 | 2020-02-18 | 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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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104347916A (en) * | 2013-08-01 | 2015-02-11 | 深圳光启创新技术有限公司 | Metamaterial |
| CN104347951A (en) * | 2013-08-01 | 2015-02-11 | 深圳光启创新技术有限公司 | Meta-material |
| 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 |
| CN104934716A (en) * | 2014-03-18 | 2015-09-23 | 深圳光启创新技术有限公司 | Bandstop wave-transparent metamaterial, antenna cover and antenna system |
| 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 |
| CN110808464A (en) * | 2018-08-06 | 2020-02-18 | 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 |
| 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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|---|---|
| CN102769197B (en) | 2015-05-27 |
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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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