CN102769198A - Artificial electromagnetic material, radome and antenna system - Google Patents
Artificial electromagnetic material, radome and antenna system Download PDFInfo
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- CN102769198A CN102769198A CN2012102205045A CN201210220504A CN102769198A CN 102769198 A CN102769198 A CN 102769198A CN 2012102205045 A CN2012102205045 A CN 2012102205045A CN 201210220504 A CN201210220504 A CN 201210220504A CN 102769198 A CN102769198 A CN 102769198A
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- artificial electromagnetic
- electromagnetic material
- cross
- radome
- frame groove
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Abstract
The invention relates to an artificial electromagnetic material, a radome and an antenna system. The artificial electromagnetic material comprises at least one baseplate made of a non-conductive material and a metal foil attached to the surface of the baseplate, wherein a plurality of identical crossed frame-shaped grooves are hollowed on the metal foil; each crossed frame-shaped groove is a closed curve, and the inner outline of each crossed frame-shaped groove encircles to be crossed; and the crossed frame-shaped grooves, taking the direction forming a 45-degree angle together with the crossed vertical lines of the inner outlines as the row and the direction forming a -45-degree angle together with the vertical lines of the inner outlines as the column, are in periodically array arrangement on the metal foil in the manner that the line spacing is equal to the column spacing. The radome employs the artificial material, and the antenna system comprises the radome. As the specially structured crossed frame-shaped grooves are hollowed on the metal foil, the radome to which the metal foil is attached has a favorable frequency selection function and can meet special requirements of specific occasions, such as military concealment and the like.
Description
Technical field
The present invention relates to artificial electromagnetic material, more particularly, relate to a kind of artificial electromagnetic material, radome and antenna system.
Background technology
Artificial electromagnetic material, English name Metamaterial is a kind of novel artificial synthetic material, is the substrate processed by nonmetallic materials and attached on the substrate surface or be embedded in the inner a plurality of artificial micro-structural of substrate and constitute.The silk thread that artificial micro-structural is processed by wire or other electric conducting material is formed has certain geometric plane or a stereochemical structure, for example annular, I-shaped etc.
Because the existence of artificial micro-structural; Make whole ultra material that the electromagnetic property that is different from substrate itself arranged; When the shape of artificial micro-structural, distribution of sizes not simultaneously, the local electromagnetic property of each of ultra material also responds change, thereby makes ultra material monolithic show some special response characteristics; Through concrete structure and the shape different, can change the response characteristic of whole ultra material to artificial microstructure design.
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.In order to influence the signal of antenna emission less as far as possible, radome generally adopts the material that wave penetrate capability is good, loss tangent is little, mechanical strength is high, like fiberglass, epoxy resin, high molecular polymer etc.
Though these materials can satisfy the demand of radome basically; But when the user need be covered with special requirement to antenna; For example for the radiated electromagnetic wave of antenna; Need the electromagnetism wave energy of certain frequency range to see through then being reflected of other frequency ranges of radome, in this case, common radome just can not satisfy the demands.People just transfer to come seeking solution to artificial electromagnetic material.
Summary of the invention
The technical problem that the present invention will solve is, do not have the defective of frequency selection function to the radome of prior art, and a kind of artificial electromagnetic material and antenna system are provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of artificial electromagnetic material is provided; Comprise the substrate that at least one non-conducting material is processed and be attached to the metal forming on the said substrate surface; Hollow out has a plurality of identical cross shaped as frame grooves on the said metal forming; Each said cross shaped as frame groove be closed curve and interior profile surround be shaped as cross, said cross shaped as frame groove is row, is that the arrangement mode cyclic array that row and line space equal column pitch is arranged on the said metal forming to become-45 directions spent with the criss-cross vertical line of profile in it with the direction that becomes 45 degree with the criss-cross vertical line of profile in it.
In artificial electromagnetic material of the present invention, said artificial electromagnetic material comprises three range upon range of substrates, is provided with the said metal forming of one deck between the adjacent two substrates.
In artificial electromagnetic material of the present invention, said metal forming is Copper Foil or silver foil.
In artificial electromagnetic material of the present invention, the groove width of said cross shaped as frame groove equates everywhere.
In artificial electromagnetic material of the present invention, the criss-cross horizontal line that the interior profile of said cross shaped as frame groove surrounds and the live width of vertical line equate, line length also equates, and horizontal line and vertical line is orthogonal divides equally.
In artificial electromagnetic material of the present invention, the line space of said cross shaped as frame groove Wei ⊿ y, column pitch Wei ⊿ x, the total length of the direction of the criss-cross horizontal line in edge of each said cross shaped as frame groove is W
b, the total length of the direction of the criss-cross vertical line in edge is W
a, each size satisfies: ⊿ x=⊿ y,
W
a=W
b
In artificial electromagnetic material of the present invention, the Hang Jian Ju ⊿ y of said cross shaped as frame groove and Lie Jian Ju ⊿ x satisfy
The total length W of the direction of the criss-cross horizontal line in edge
aWith total length W along the direction of vertical line
bSatisfy W
a=W
b=7.3mm, groove width is 0.3mm.
In artificial electromagnetic material of the present invention, the thickness of metal forming is 0.018mm, and the thickness of said substrate is 3.2mm.
In artificial electromagnetic material of the present invention, the working frequency range of said artificial electromagnetic material is 8～12GHz.
The invention still further relates to a kind of radome, be used to be located at antenna body, comprise above-mentioned artificial electromagnetic material.
The invention still further relates to a kind of antenna system, comprise antenna body and above-mentioned radome, said radome covers on the antenna body.
The technical scheme of embodiment of the present invention; Has following beneficial effect: because hollow out has the special cross shaped as frame groove of structure on the metal forming; Make radome have good frequency selection function, can satisfy the for example military stealthy specific demand that waits in specific occasion with this metal forming.
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 cross-sectional view according to artificial electromagnetic material of the present invention;
Fig. 2 is the structural representation of the metal forming among Fig. 1;
Fig. 3 is the structural representation of the cross shaped as frame groove among Fig. 2;
Fig. 4 is the frequency response analogous diagram with band same frequency selection radome of metal forming shown in Figure 2.
Embodiment
The invention provides a kind of artificial electromagnetic material, comprise substrate that at least one non-conducting material is processed and attached to the metal forming on the substrate surface.The non-conducting material here has multiple choices; For example pottery, FR4, F4B (polytetrafluoroethylene), HDPE (high density polyethylene (HDPE), High Density Polyethylene) or ABS (Acrylonitrile Butadiene Styrene), ferroelectric material, ferrite material or ferromagnetic material etc.
As shown in Figure 1, the artificial electromagnetic material 1 in the present embodiment has three layers of substrate 3 of stack successively, respectively is attached with layer of metal paper tinsel 2 between the adjacent two substrates 3.Double layer of metal paper tinsel 2 is identical, and three laminar substrates then are chosen as the upper and lower two-layer same material that is, middle substrate is another kind of material.Because upper and lower two-layer substrate contacts with air respectively, therefore select dielectric constant relatively to approach 1 material.The material of the upper and lower floor height of permittivity ratio is selected in order to strengthen the response of metal forming in the intermediate layer.Equally, when substrate 3 surpassed three layers, innermost layer and outermost substrate 3 selected for use dielectric constant near 1 material, middle which floor can adjust according to actual needs.
The structure of metal forming 2 is as shown in Figure 2, is the evenly tinsel of uniform thickness, the metal material that can conduct electricity very well for Copper Foil, silver foil, goldleaf etc.Hollow out has a plurality of identical cross shaped as frame grooves 4 and them periodically to arrange on the metal forming 2.So-called cross shaped as frame groove 4 is meant the formed mount structure of outward flange one circle fluting around " a ten " word, and then the interior profile of cross shaped as frame groove 4 promptly surrounds above-mentioned cross, and this groove is the closed curve with certain width.Shade is depicted as cross shaped as frame groove 4 among Fig. 2, and blank parts is represented the metal forming entity.
Cross shaped as frame groove 4 is as shown in Figure 3, and the cross 40 of interior profile comprises mutual perpendicular horizontal line and vertical line, and preferably line length of the two and live width all equate, and the two is vertically divided equally each other.The direction at horizontal line place representes that with S1 the direction at vertical line place is represented with S2.The groove width of cross shaped as frame groove 4 equates everywhere that also as shown in Figure 3, then total becomes 90 degree rotational symmetry structures around its central point O.
A plurality of cross shaped as frame grooves 4 are arranged into a rectangular array; The direction of every row of arranging, every row be respectively become with the criss-cross vertical line direction S2 of cross shaped as frame groove 4 45 degree ,-direction of miter angle (counterclockwise for just); Promptly as shown in Figure 3; Central point O with arbitrary cross shaped as frame groove 4 is an initial point, is the x axle with the direction that becomes miter angle with vertical line, with become with vertical line-direction of miter angle is the y axle.As shown in Figure 2; The line space of known cross shaped as frame groove 4 (being the same distance that lists the central point O of adjacent two cross shaped as frame grooves) is ⊿ y, and column pitch (with the distance of the central point O of adjacent two cross shaped as frame grooves in the delegation) is ⊿ x, in the XOY axis coordinate system; The coordinate of the central point O of each cross shaped as frame groove all satisfies (n ⊿ x; M ⊿ y), n wherein, m is an arbitrary integer.Among the present invention, line space and column pitch equate ， Ji ⊿ x=⊿ y.
In order to obtain the effect of frequency selection preferably; Cross shaped as frame groove 4 as much as possible should distribute on metal forming 2; Not independent for fear of intersecting between the adjacent cross shaped as frame groove 4 simultaneously, must meet some requirements between the size of cross shaped as frame groove 4 and line space, the column pitch.Can know that in conjunction with Fig. 2, Fig. 3 the total length of direction S1 of establishing the criss-cross horizontal line in edge of each said cross shaped as frame groove 4 is W
b, the total length of the direction S2 of the criss-cross vertical line in edge is W
a, each size satisfies: ⊿ x=⊿ y,
W
a=W
bWork as W
a≠ W
bThe time, obviously will satisfy other relational expressions, all can calculate according to actual conditions.
Below, with combining specific embodiment that the effect of radome of the present invention is described.In one embodiment, as shown in Figure 3, each parameter does
W
a=W
b=7.3mm, groove width w=0.3mm, the live width L=1.5mm of criss-cross horizontal line, vertical line, metal forming is that Copper Foil and thickness are 0.018mm, the thickness of substrate is 3.2mm, upper and lower two-layer substrate DIELECTRIC CONSTANTS
R1=1.42, loss tangent tan δ=0.01, intermediate layer substrate dielectric constant ε
R2=2.2, loss tangent tan δ=0.009.
Artificial electromagnetic material to having the said structure characteristic carries out emulation, and figure is as shown in Figure 4 for its S parameters simulation.Can see that by Fig. 4 above-mentioned artificial electromagnetic material passes through wave system and counts that S21 is 0 basically, reflection coefficient S11 is about-25 when 9.3GHz; When 11.2GHz, the S21 of artificial electromagnetic material is-0.1dB, S11 be-24dB.Visible by figure; Artificial electromagnetic material realizes that in the band limits of 8～12GHz band is logical; Then the electromagnetic wave in this band limits can be good at seeing through; The electromagnetic wave of other frequencies then can be made artificial electromagnetic material of the present invention have good frequency selection function by a large amount of losses or reflection, can satisfy the for example military stealthy specific demand that waits in specific occasion.
Need to prove; The artificial electromagnetic material of illustrating in the accompanying drawing be shaped as tabular; When actual design, also can design the shape of artificial electromagnetic material according to the actual requirements; Such as can being designed to spherical shape or with the shape (conformal artificial electromagnetic material) 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 radome that is used to be located on the antenna body, and this radome promptly comprises having above-mentioned artificial electromagnetic material, is used for that the electromagnetic wave that antenna body sends and receives is carried out selectivity and passes through ripple.
The present invention also provides a kind of antenna system, comprises antenna body, and artificial electromagnetic material as indicated above, and artificial electromagnetic material covers on the antenna.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.
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 (11)
1. artificial electromagnetic material; It is characterized in that; Comprise the substrate that at least one non-conducting material is processed and be attached to the metal forming on the said substrate surface; Hollow out has a plurality of identical cross shaped as frame grooves on the said metal forming; Each said cross shaped as frame groove be closed curve and interior profile surround be shaped as cross, said cross shaped as frame groove is row, is that the arrangement mode cyclic array that row and line space equal column pitch is arranged on the said metal forming to become-45 directions spent with the criss-cross vertical line of profile in it with the direction that becomes 45 degree with the criss-cross vertical line of profile in it.
2. artificial electromagnetic material according to claim 1 is characterized in that, said artificial electromagnetic material comprises three range upon range of substrates, is provided with the said metal forming of one deck between the adjacent two substrates.
3. artificial electromagnetic material according to claim 1 is characterized in that, said metal forming is Copper Foil or silver foil.
4. artificial electromagnetic material according to claim 1 is characterized in that, the groove width of said cross shaped as frame groove equates everywhere.
5. artificial electromagnetic material according to claim 4 is characterized in that, the criss-cross horizontal line that the interior profile of said cross shaped as frame groove surrounds and the live width of vertical line equate, line length also equates, and horizontal line and vertical line is orthogonal divides equally.
6. artificial electromagnetic material according to claim 5 is characterized in that, the line space Wei ⊿ y of said cross shaped as frame groove, and column pitch Wei ⊿ x, the total length of the direction of the criss-cross horizontal line in edge of each said cross shaped as frame groove is W
b, the total length of the direction of the criss-cross vertical line in edge is W
a, each size satisfies: ⊿ x=⊿ y,
W
a=W
b
7. artificial electromagnetic material according to claim 6 is characterized in that, the Hang Jian Ju ⊿ y of said cross shaped as frame groove and Lie Jian Ju ⊿ x satisfy
The total length W of the direction of the criss-cross horizontal line in edge
aWith total length W along the direction of vertical line
bSatisfy W
a=W
b=7.3mm, groove width is 0.3mm.
8. artificial electromagnetic material according to claim 7 is characterized in that, the thickness of metal forming is 0.018mm, and the thickness of said substrate is 3.2mm.
9. artificial electromagnetic material according to claim 8 is characterized in that, the working frequency range of said artificial electromagnetic material is 8～12GHz.
10. a radome is characterized in that, is used to be located at antenna body, comprises having each described artificial electromagnetic material of claim 1 to 9.
11. an antenna system is characterized in that, comprises the described radome of antenna body and claim 10, said radome covers on the antenna body.
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|---|---|---|---|
| CN201210220504.5A CN102769198B (en) | 2012-06-29 | 2012-06-29 | Artificial electromagnetic material, radome and antenna system |
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|---|---|---|---|
| CN201210220504.5A CN102769198B (en) | 2012-06-29 | 2012-06-29 | Artificial electromagnetic material, radome and antenna system |
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| CN102769198A true CN102769198A (en) | 2012-11-07 |
| CN102769198B CN102769198B (en) | 2014-08-13 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071051A (en) * | 2015-07-27 | 2015-11-18 | 哈尔滨工业大学 | Improved Fabry-Perot resonant cavity antenna |
| CN106025454A (en) * | 2016-05-06 | 2016-10-12 | 中国工程物理研究院电子工程研究所 | Improved Jerusalem cross unit double-layer FSS structure |
| CN106329040A (en) * | 2016-09-05 | 2017-01-11 | 东南大学 | Composite cross slot frequency selective surface (FSS) |
| CN106654563A (en) * | 2015-07-13 | 2017-05-10 | 深圳光启高等理工研究院 | Radome |
| CN108481756A (en) * | 2018-02-12 | 2018-09-04 | 西安工程大学 | Quasi-isotropic structure-camouflage composite material and preparation method thereof in a kind of face |
| CN108615974A (en) * | 2018-05-03 | 2018-10-02 | 航天特种材料及工艺技术研究所 | Dissipative type broadband frequency-selective surfaces radome |
| CN109524789A (en) * | 2018-09-28 | 2019-03-26 | 西安电子科技大学 | A kind of modified FSS structure applied to S-band |
| CN110676583A (en) * | 2019-11-13 | 2020-01-10 | 深圳市鼎耀科技有限公司 | Anti-interference array antenna for satellite navigation |
| CN112038760A (en) * | 2020-02-29 | 2020-12-04 | 华南理工大学 | Broadband miniaturized antenna based on interactive embedded super surface structure |
| CN114735558A (en) * | 2022-04-02 | 2022-07-12 | 日立楼宇技术（广州）有限公司 | Elevator system adopting radar ranging |
| GB2617087A (en) * | 2022-03-28 | 2023-10-04 | Univ Birmingham | Multi-function micro-actuated metasurface |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5400043A (en) * | 1992-12-11 | 1995-03-21 | Martin Marietta Corporation | Absorptive/transmissive radome |
| CN102480025A (en) * | 2011-07-26 | 2012-05-30 | 深圳光启高等理工研究院 | Feed-forward type radar antenna |
| CN102480009A (en) * | 2011-04-28 | 2012-05-30 | 深圳光启高等理工研究院 | Metamaterial with high dielectric constant |
-
2012
- 2012-06-29 CN CN201210220504.5A patent/CN102769198B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5400043A (en) * | 1992-12-11 | 1995-03-21 | Martin Marietta Corporation | Absorptive/transmissive radome |
| CN102480009A (en) * | 2011-04-28 | 2012-05-30 | 深圳光启高等理工研究院 | Metamaterial with high dielectric constant |
| CN102480025A (en) * | 2011-07-26 | 2012-05-30 | 深圳光启高等理工研究院 | Feed-forward type radar antenna |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654563A (en) * | 2015-07-13 | 2017-05-10 | 深圳光启高等理工研究院 | Radome |
| CN106654563B (en) * | 2015-07-13 | 2023-09-19 | 深圳光启高等理工研究院 | Antenna housing |
| CN105071051A (en) * | 2015-07-27 | 2015-11-18 | 哈尔滨工业大学 | Improved Fabry-Perot resonant cavity antenna |
| CN106025454A (en) * | 2016-05-06 | 2016-10-12 | 中国工程物理研究院电子工程研究所 | Improved Jerusalem cross unit double-layer FSS structure |
| CN106329040A (en) * | 2016-09-05 | 2017-01-11 | 东南大学 | Composite cross slot frequency selective surface (FSS) |
| CN106329040B (en) * | 2016-09-05 | 2020-08-04 | 东南大学 | Composite cross-shaped gap frequency selection surface |
| CN108481756B (en) * | 2018-02-12 | 2020-05-26 | 西安工程大学 | In-plane quasi-isotropic structure-stealth composite material and preparation method thereof |
| CN108481756A (en) * | 2018-02-12 | 2018-09-04 | 西安工程大学 | Quasi-isotropic structure-camouflage composite material and preparation method thereof in a kind of face |
| CN108615974A (en) * | 2018-05-03 | 2018-10-02 | 航天特种材料及工艺技术研究所 | Dissipative type broadband frequency-selective surfaces radome |
| CN109524789A (en) * | 2018-09-28 | 2019-03-26 | 西安电子科技大学 | A kind of modified FSS structure applied to S-band |
| CN110676583A (en) * | 2019-11-13 | 2020-01-10 | 深圳市鼎耀科技有限公司 | Anti-interference array antenna for satellite navigation |
| CN112038760A (en) * | 2020-02-29 | 2020-12-04 | 华南理工大学 | Broadband miniaturized antenna based on interactive embedded super surface structure |
| CN112038760B (en) * | 2020-02-29 | 2021-11-19 | 华南理工大学 | Broadband miniaturized antenna based on interactive embedded super surface structure |
| GB2617087A (en) * | 2022-03-28 | 2023-10-04 | Univ Birmingham | Multi-function micro-actuated metasurface |
| CN114735558A (en) * | 2022-04-02 | 2022-07-12 | 日立楼宇技术（广州）有限公司 | Elevator system adopting radar ranging |
| CN114735558B (en) * | 2022-04-02 | 2023-08-11 | 日立楼宇技术（广州）有限公司 | Elevator system adopting radar ranging |
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Effective date of registration: 20160407 Address after: 518057 Guangdong City, Nanshan District province high tech Zone in the middle of a high tech building, building No. 2, No. 9, building Patentee after: Shenzhen Guangqi Innovative Technology Co., Ltd. Address before: 518034 A international business center, No. 1061, Xiang Mei Road, Guangdong, Shenzhen, Futian District, China 18B Patentee before: Shenzhen Kuang-Chi Innovation Technology Co., Ltd. |