CN102769198B - Artificial electromagnetic material, radome and antenna system - Google Patents
Artificial electromagnetic material, radome and antenna system Download PDFInfo
- Publication number
- CN102769198B CN102769198B CN201210220504.5A CN201210220504A CN102769198B CN 102769198 B CN102769198 B CN 102769198B CN 201210220504 A CN201210220504 A CN 201210220504A CN 102769198 B CN102769198 B CN 102769198B
- Authority
- CN
- China
- Prior art keywords
- artificial electromagnetic
- electromagnetic material
- metal forming
- radome
- cross
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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 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.What the silk thread that artificial micro-structural is made up of wire or other electric conducting material formed has certain geometric plane or stereochemical structure, such as annular, I-shaped etc.
Due to the existence of artificial micro-structural, make whole super material have the electromagnetic property that is different from substrate itself, in the time that the shape of artificial micro-structural, distribution of sizes are different, the electromagnetic property of each part of super material also responds change, thereby makes super material monolithic show some special response characteristics; 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.In order to affect as little as possible the signal of antenna transmission, radome generally adopts the material that wave penetrate capability is good, loss tangent is little, mechanical strength is high, as fiberglass, epoxy resin, high molecular polymer etc.
Although these materials can meet the demand of radome substantially, but when user need to 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 being reflected of other frequency ranges of radome, in this case, common radome just can not satisfy the demands.People just transfer to carry out seeking solution to artificial electromagnetic material.
Summary of the invention
The technical problem to be solved in the present invention is do not have the defect of frequency selection function for 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 made and be attached to the metal forming on described substrate surface, in described metal forming, hollow out has multiple identical cross shaped as frame grooves, each described cross shaped as frame groove be closed curve and interior profile surround be shaped as cross, described cross shaped as frame groove is to become the direction of 45 degree as capable with the criss-cross vertical line of profile in it, to become the direction of-45 degree as row with the criss-cross vertical line of profile in it, and the arrangement mode cyclic array that line space equals column pitch is arranged in described metal forming.
In artificial electromagnetic material of the present invention, described artificial electromagnetic material comprises three stacked substrates, is provided with metal forming described in one deck between adjacent two substrates.
In artificial electromagnetic material of the present invention, described metal forming is Copper Foil or silver foil.
In artificial electromagnetic material of the present invention, the groove width of described 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 described 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 Wei ⊿ y of described cross shaped as frame groove, column pitch Wei ⊿ x, the total length of the direction along criss-cross horizontal line of each described cross shaped as frame groove is W
b, be W along the total length of the direction of criss-cross vertical line
a, each size meets: ⊿ x=⊿ y,
w
a=W
b.
In artificial electromagnetic material of the present invention, between the Hang Jian Ju ⊿ y of described cross shaped as frame groove and Lie, Ju ⊿ x meets
along the total length W of the direction of criss-cross horizontal line
atotal length W with the direction along vertical line
bmeet 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 described substrate is 3.2mm.
In artificial electromagnetic material of the present invention, the working frequency range of described artificial electromagnetic material is 8～12GHz.
The invention still further relates to a kind of radome, for being 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, described radome covers on antenna body.
Implement technical scheme of the present invention, there is following beneficial effect: because hollow out in metal forming has the special cross shaped as frame of structure groove, make to there is good frequency selection function with the radome of this metal forming, can meet for example military stealthy specific demand that waits of specific occasion.
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 cross-sectional view according to artificial electromagnetic material of the present invention;
Fig. 2 is the structural representation of the metal forming in Fig. 1;
Fig. 3 is the structural representation of the cross shaped as frame groove in Fig. 2;
Fig. 4 is the frequency response analogous diagram with same frequency selection radome with metal forming shown in Fig. 2.
Embodiment
The invention provides a kind of artificial electromagnetic material, comprise the substrate that at least one non-conducting material is made and be attached to the metal forming on 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, between adjacent two substrates 3, is respectively attached with layer of metal paper tinsel 2.Double layer of metal paper tinsel 2 is identical, and three laminar substrates are chosen as upper and lower two-layer for same material, and middle substrate is another kind of material.Because upper and lower two-layer substrate contacts with air respectively, therefore select dielectric constant to compare the material close to 1.Intermediate layer, in order to strengthen the response of metal forming, selects dielectric constant than the material of upper and lower floor height.Equally, in the time that substrate 3 exceedes three layers, innermost layer and outermost substrate 3 select dielectric constant to approach 1 material, and which floor can be adjusted according to actual needs in centre.
The structure of metal forming 2 as shown in Figure 2, is the tinsel of even uniform thickness, can be the metal material that Copper Foil, silver foil, goldleaf etc. conduct electricity very well.In metal forming 2, hollow out has multiple identical cross shaped as frame grooves 4 and their periodicity to arrange.So-called cross shaped as frame groove 4, refers to the mount structure forming around the outward flange one circle fluting of " ten " word, and the interior profile of cross shaped as frame groove 4 surrounds above-mentioned cross, and this groove is the closed curve with certain width.In Fig. 2, shade is depicted as cross shaped as frame groove 4, and blank parts represents metal forming entity.
As shown in Figure 3, the cross 40 of interior profile comprises mutual perpendicular horizontal line and vertical line to cross shaped as frame groove 4, and preferably the line length of the two and live width all equate, and the two is vertically divided equally mutually.The direction at horizontal line place represents with S1, and the direction at vertical line place represents with S2.The groove width of cross shaped as frame groove 4 is also equal everywhere, and as shown in Figure 3, total becomes 90 degree rotational symmetry structures around its central point O.
Multiple cross shaped as frame grooves 4 are arranged into a rectangular array, the direction of every row of arranging, every row is respectively the direction that becomes 45 degree ,-miter angle (being just counterclockwise) with the criss-cross vertical line direction S2 of cross shaped as frame groove 4, as shown in Figure 3, taking the central point O of arbitrary cross shaped as frame groove 4 as initial point, to become the direction of miter angle as x axle with vertical line, taking the direction of become with vertical line-miter angle as y axle.As shown in Figure 2, the line space of known cross shaped as frame groove 4 (is the distance) Wei ⊿ y of the same central point O that lists adjacent two cross shaped as frame grooves, column pitch (with the distance of the central point O of adjacent two cross shaped as frame grooves in a line) is ⊿ x, in XOY axis coordinate system, the coordinate of the central point O of each cross shaped as frame groove all meets (n ⊿ x, m ⊿ y), wherein n, m is arbitrary integer.In the present invention, line space and column pitch equate ， Ji ⊿ x=⊿ y.
Select effect in order to obtain good frequency, cross shaped as frame groove 4 as much as possible should distribute in metal forming 2, simultaneously not independent for fear of intersecting between adjacent cross shaped as frame groove 4, between the size of cross shaped as frame groove 4 and line space, column pitch, must meet some requirements.Known in conjunction with Fig. 2, Fig. 3, the total length of establishing the direction S1 along criss-cross horizontal line of each described cross shaped as frame groove 4 is W
b, be W along the total length of the direction S2 of criss-cross vertical line
a, each size meets: ⊿ x=⊿ y,
w
a=W
b.Work as W
a≠ W
btime, obviously will meet other relational expressions, all can calculate according to actual conditions.
The effect of radome of the present invention is described in connection with specific embodiment below.In one embodiment, as shown in Figure 3, each parameter is
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 CONSTANT ε
r1=1.42, loss tangent tan δ=0.01, intermediate layer substrate dielectric constant ε
r2=2.2, loss tangent tan δ=0.009.
The artificial electromagnetic material with said structure feature is carried out to emulation, and its S parameters simulation figure as shown in Figure 4.Can be seen by Fig. 4, above-mentioned artificial electromagnetic material is in the time of 9.3GHz, and wave transparent coefficient S 21 is 0 substantially, reflection coefficient S11 is about-25; In the time of 11.2GHz, the S21 of artificial electromagnetic material is-0.1dB, S11 are-24dB.As seen from the figure, it is logical that artificial electromagnetic material is realized band in the band limits of 8～12GHz, the electromagnetic wave in this band limits can be good at seeing through, the electromagnetic wave of other frequencies can be by a large amount of losses or reflection, make artificial electromagnetic material of the present invention there is good frequency selection function, can meet for example military stealthy specific demand that waits of specific occasion.
It should be noted that, the artificial electromagnetic material of illustrating in accompanying drawing be shaped as tabular, in the time of actual design, also can design according to the actual requirements the shape of artificial electromagnetic material, such as shape that can be designed to spherical shape or mate with antenna pattern (conformal artificial electromagnetic material) etc., also do not get rid of the shape that uses multiple plate-like structures to be spliced into needs, the present invention is not restricted this.
The present invention also provides that a kind of this radome comprises having above-mentioned artificial electromagnetic material for being located at the radome on antenna body, and the electromagnetic wave that is used for antenna body to send and receive carries out selectivity wave transparent.
The present invention also provides a kind of antenna system, comprises antenna body, and artificial electromagnetic material as described above, and artificial electromagnetic material covers on antenna.Antenna body comprises radiation source, feed element etc., and concrete formation can be consulted 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.
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 (11)
1. an artificial electromagnetic material, it is characterized in that, comprise the substrate that at least one non-conducting material is made and be attached to the metal forming on described substrate surface, in described metal forming, hollow out has multiple identical cross shaped as frame grooves, each described cross shaped as frame groove is that closed curve and interior profile are the outline of a cross metal forming, described cross shaped as frame groove is to become the direction of 45 degree as capable with the vertical line of described cross metal forming, to become the direction of-45 degree as row with the vertical line of described cross metal forming, and the arrangement mode cyclic array that line space equals column pitch is arranged in described metal forming.
2. artificial electromagnetic material according to claim 1, is characterized in that, described artificial electromagnetic material comprises three stacked substrates, is provided with metal forming described in one deck between adjacent two substrates.
3. artificial electromagnetic material according to claim 1, is characterized in that, described metal forming is Copper Foil or silver foil.
4. artificial electromagnetic material according to claim 1, is characterized in that, the groove width of described cross shaped as frame groove equates everywhere.
5. artificial electromagnetic material according to claim 4, is characterized in that, the horizontal line of described cross metal forming 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 described cross shaped as frame groove, and column pitch Wei ⊿ x, the total length of the direction along criss-cross horizontal line of each described cross shaped as frame groove is W
b, be W along the total length of the direction of criss-cross vertical line
a, each size meets: ⊿ x=⊿ y,
w
a=W
b.
7. artificial electromagnetic material according to claim 6, is characterized in that, between the Hang Jian Ju ⊿ y of described cross shaped as frame groove and Lie, Ju ⊿ x meets
along the total length W of the direction of criss-cross horizontal line
atotal length W with the direction along vertical line
bmeet 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 described substrate is 3.2mm.
9. artificial electromagnetic material according to claim 8, is characterized in that, the working frequency range of described artificial electromagnetic material is 8～12GHz.
10. a radome, is characterized in that, for being located at antenna body, comprising the artificial electromagnetic material having described in claim 1 to 9 any one.
11. 1 kinds of antenna systems, is characterized in that, comprise antenna body and radome claimed in claim 10, and described radome covers on antenna body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210220504.5A CN102769198B (en) | 2012-06-29 | 2012-06-29 | Artificial electromagnetic material, radome and antenna system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210220504.5A CN102769198B (en) | 2012-06-29 | 2012-06-29 | Artificial electromagnetic material, radome and antenna system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102769198A CN102769198A (en) | 2012-11-07 |
| CN102769198B true CN102769198B (en) | 2014-08-13 |
Family
ID=47096497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210220504.5A Active CN102769198B (en) | 2012-06-29 | 2012-06-29 | Artificial electromagnetic material, radome and antenna system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102769198B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN108615974B (en) * | 2018-05-03 | 2021-06-22 | 航天特种材料及工艺技术研究所 | Dissipative broadband frequency selective surface radome |
| CN109524789B (en) * | 2018-09-28 | 2020-06-12 | 西安电子科技大学 | Improved FSS structure applied to S wave 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 |
| 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 |
| 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 |
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102769198A (en) | 2012-11-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102769198B (en) | Artificial electromagnetic material, radome and antenna system | |
| CN102760966B (en) | Wide-band high-wave transmission metamaterial, antenna housing thereof and antenna system | |
| CN102694255B (en) | Meta-material microwave antenna housing and antenna system | |
| CN103296409A (en) | Broadband metamaterial antenna housing and antenna system | |
| CN102683842B (en) | Super material microwave antenna house and antenna system | |
| CN102760965A (en) | Large-angle wave-transmitting metamaterial, antenna housing thereof and antenna system | |
| CN102769197B (en) | Wave-transmitting material and radome and antenna system both employing same | |
| CN103367911A (en) | Metamaterial base station antenna housing and antenna system | |
| CN102723598B (en) | Metamaterial microwave antenna cover and antenna system | |
| CN103296419A (en) | Broadband metamaterial antenna housing and antenna system | |
| CN102760964A (en) | Wave-transmitting meta-material and antenna cover and antenna system with material | |
| CN103579773A (en) | Metamaterial, radome with same and antenna system | |
| CN102760963B (en) | Broadband wave-transmitting meta-material and antenna cover and antenna system with material | |
| CN103296410A (en) | High-gain metamaterial antenna housing and antenna system | |
| CN102709694A (en) | Microwave radome and antenna system | |
| CN103296401A (en) | Low-loss metamaterial antenna housing | |
| CN103682614A (en) | Broadband wave-transmitting material, and antenna housing and antenna system thereof | |
| CN103296402A (en) | Low-loss metamaterial antenna housing | |
| CN102856661B (en) | Bandpass wave-transmitting material and antenna housing and antenna system | |
| CN104409846A (en) | Wave transmission metamaterial antenna cover | |
| CN102694254A (en) | Metamaterial base station antenna radome and antenna system | |
| CN103296406B (en) | Metamaterial antenna housing | |
| CN202487767U (en) | Metamaterial antenna housing with wave filtering function | |
| CN103296400A (en) | High-gain metamaterial antenna housing and antenna system | |
| CN103296413A (en) | Broadband high wave-transparent metamaterial antenna housing and antenna system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
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. |