CN102760962A - Wideband wave-transmitting metamaterial, and antenna housing and antenna system formed by same - Google Patents
Wideband wave-transmitting metamaterial, and antenna housing and antenna system formed by same Download PDFInfo
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- CN102760962A CN102760962A CN2012102262103A CN201210226210A CN102760962A CN 102760962 A CN102760962 A CN 102760962A CN 2012102262103 A CN2012102262103 A CN 2012102262103A CN 201210226210 A CN201210226210 A CN 201210226210A CN 102760962 A CN102760962 A CN 102760962A
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Abstract
The invention relates to a wideband wave-transmitting metamaterial, and an antenna housing and an antenna system formed by the same. The wideband wave-transmitting metamaterial comprises a first base plate and a second base plate, a square ring structure is sandwiched between the first base plate and the second base plate, and square patches are arranged on the external surface of the first base plate and the external surface of the second base plate in array form. The wideband wave-transmitting metamaterial and the antenna housing provided by the invention both have very high wave-transmitting efficiency in the wideband of 6-18GHz, and smaller loss.
Description
Technical field
The present invention relates to electromagnetic wave transparent material, more particularly, relate to wideband and pass through the ultra material of ripple and radome and antenna system.
Background technology
Ultra material is commonly called as ultra material, 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.Substrate can be divided into a plurality of base board units that rectangular array is arranged virtually; Be attached with artificial micro-structural on each base board unit; Thereby form a ultra material cell; Whole ultra material is made up of a lot of so ultra material cell, just as crystal is to be made up of according to certain arranging countless lattices.Artificial micro-structural on each ultra material cell can be identical or incomplete same.Artificial micro-structural has certain geometric plane or a stereochemical structure by what wire was formed, for example forms annular, I-shaped wire etc.
Because the existence of artificial micro-structural, each ultra material cell has the electromagnetic property that is different from substrate itself, so the ultra material that all ultra material cell constitute demonstrates special response characteristic to electric field and magnetic field; 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.But radome is the barrier of antenna front, can produce the aerial radiation ripple to absorb and reflection, changes the free space Energy distribution of antenna, and influences the electric property of antenna to a certain extent.
At present the material of preparation radome adopts dielectric constant and loss angle tangent is low, mechanical strength is high material more, and like fiberglass, epoxy resin, high molecular polymer etc., the dielectric constant of material has unadjustable property.Mostly be uniform single walled structure, sandwich and spatial skeleton structure etc. on the structure; The design of cone wall thickness need take into account operation wavelength, radome size and dimension, environmental condition, material therefor in factors such as electric and structural performances, and difficulty reaches the high ripple requirement of passing through; And the working frequency range of radome is narrower, under different frequency range demands, needs to change radome, can't realize the repeated use of resource, causes the waste of resource and the raising of equipment cost.
Summary of the invention
The technical problem that the present invention will solve is, to the defective that above-mentioned wave penetrate capability is relatively poor, working frequency range is narrower of prior art, provides a kind of wideband to pass through the ultra material of ripple and radome and antenna system.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of wideband and pass through the ultra material of ripple; Comprise first substrate and second substrate; Be folded with the square ring structure of one deck array arrangement between first substrate and second substrate, the outer surface array arrangement of the outer surface of first substrate and second substrate has square patch.
Pass through in the ultra material of ripple at wideband of the present invention, on the outer surface of first substrate on the outer surface of the square patch of array arrangement and second substrate shape and size of the square patch of array arrangement identical.
Pass through in the ultra material of ripple at wideband of the present invention; Said wideband passes through the ultra material of ripple can be divided into a plurality of ultra material cell; Each ultra material cell comprises first base board unit, second base board unit, also comprise be arranged between the first base board unit outer surface, first base board unit and second base board unit successively, the square patch of the second base board unit outer surface, square ring structure, square patch.
Pass through in the ultra material of ripple at wideband of the present invention, said square patch comprises four measure-alike square sub-pasters, and four square sub-pasters are arranged on the place, four end angles of first base board unit and second base board unit.
Pass through in the ultra material of ripple at wideband of the present invention, said square sub-paster is close to the border at the end angle of first base board unit and second base board unit.
Pass through in the ultra material of ripple at wideband of the present invention, said side's ring structure is close to the border of said ultra material cell.
Pass through in the ultra material of ripple the length of said ultra material cell and the wide 8mm that is at wideband of the present invention.
Pass through in the ultra material of ripple at wideband of the present invention, square sub-paster is square paster, and the length of side is 2mm.
Pass through in the ultra material of ripple at wideband of the present invention, said first substrate and second substrate by dielectric constant be 2.65, loss tangent is that 0.001 material is processed.
The present invention also provides a kind of radome, is used to be located at antenna, comprises that aforesaid wideband passes through the ultra material of ripple.
The present invention also provides a kind of antenna system, comprises antenna and aforesaid radome, and said radome covers on the antenna.
The technical scheme of embodiment of the present invention has following beneficial effect: through on substrate, adhering to the artificial micro-structural of given shape, obtain the electromagnetic response that needs, make that the wave penetrate capability based on the radome of ultra material strengthens the antijamming capability increase.Can be through regulating shape, the size of artificial micro-structural; Change relative dielectric constant, refractive index and the impedance of material; Thereby realize impedance matching with air; To increase the transmission of incident electromagnetic wave to greatest extent, reduced traditional antenna and be covered with the restriction of timing material thickness and dielectric constant.Wideband of the present invention pass through the ultra material of ripple and radome in the 6-18GHz frequency band to pass through weave efficiency very high, loss is less.After antenna added radome, the radianting capacity of antenna had obtained reinforcement, had effectively improved gain, and radiation directivity strengthens.
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 structural representation that passes through each part of the ultra material of ripple according to the wideband of one embodiment of the invention;
Fig. 2 is the structural representation according to the ultra material cell of one embodiment of the invention;
The sketch map of Fig. 3 side of being ring structure;
Fig. 4 is the structural representation of square patch;
Fig. 5 is the arrange sketch map of square patch 11 at first substrate, 10 outer surfaces;
Fig. 6 side of being ring structure 22 is folded in the sketch map of arranging between first substrate 10 and second substrate 20;
Fig. 7 is the arrange sketch map of square patch 33 at second substrate, 20 outer surfaces;
Fig. 8 is that the wideband according to one embodiment of the invention passes through the sketch map of the S parameter of the ultra material of ripple with frequency change.
Embodiment
Ultra material is a kind of artificial composite structure material with the not available extraordinary physical property of natural material, through the orderly arrangement to micro-structural, can change in the space relative dielectric constant and magnetic permeability at every.Ultra material can be realized refractive index, impedance and the wave penetrate capability that common material can't possess within the specific limits, thereby can effectively control the electromagnetic wave propagation characteristic.Wideband based on artificial micro-structural passes through shape, the size that the ultra material of ripple can pass through to regulate artificial micro-structural; Change relative dielectric constant, refractive index and the impedance of material; Thereby the impedance matching of realization and air is to increase the transmission of incident electromagnetic wave to greatest extent.And can carry out the frequency selection through regulating microstructure size, adjust corresponding ripple and frequency filtering as required.
Fig. 1 is the structural representation that passes through each part of the ultra material of ripple according to the wideband of one embodiment of the invention.In order to be clearly shown that each part, Fig. 1 is with the form signal of explosive view.As shown in Figure 1; Wideband passes through the ultra material 1 of ripple and comprises first substrate 10 and second substrate 20; The outer surface and the outer surface array arrangement of second substrate 20 that are folded with square ring structure 22, the first substrates 10 of one deck array arrangement between first substrate 10 and second substrate 20 have square patch 11,33.
In an embodiment of the present invention, on the outer surface of first substrate 10 on the outer surface of the square patch 11 of array arrangement and second substrate 20 shape and size of the square patch 33 of array arrangement identical.
In the present invention; In order clearly to describe the arrangement mode of square patch and square ring structure; Wideband is passed through the ultra material of ripple be virtually divided into a plurality of ultra material cell 100; As shown in Figure 2, each ultra material cell 100 comprises first base board unit 101, second base board unit 201, also comprise be arranged between first base board unit, 101 outer surfaces, first base board unit 101 and second base board unit 201 successively, square patch 11, square ring structure 22, the square patch 33 of second base board unit, 201 outer surfaces.Square patch here and square ring structure can be referred to as artificial micro-structural.In an embodiment of the present invention, the length of ultra material cell and wide be 8mm, also promptly the length of first base board unit 101 and second base board unit 201 and wide be 8mm.In order illustrating conveniently, only to have divided 9 ultra material cell among the figure, to have seen that the division here is merely signal, not as limitation of the present invention shown in the dotted line division.The plane, artificial micro-structural place of array arrangement is parallel with magnetic direction with electromagnetic electric field, and is vertical with the incident electromagnetic wave direction of propagation.
Side's ring structure 22 is square ring-type structure; As shown in Figure 3, be close to the border of ultra material cell 100, the length and wide the equating of the length of side a of promptly square ring structure 22 and first base board unit 101 and second base board unit 201; Length and wide equating with ultra material cell, can be 8mm.
In an embodiment of the present invention, square patch 11,33 comprises four measure-alike square sub-pasters 111, and is as shown in Figure 4, and four square sub-pasters 111 are arranged on the place, four end angles of first base board unit 101 and second base board unit 201.Square sub-paster 111 is close to the border at the end angle of first base board unit 101 and second base board unit 201.In an embodiment of the present invention, square sub-paster 111 is square paster, and side length b is 2mm.
In the present invention, the thickness of first substrate 10 and second substrate 20 is 1.2mm.The thickness of square patch 11,33 and square ring structure 22 is 0.018 mm.Square patch 11,33 is metal patch, and square ring structure 22 is made up of metal wire, for example can be metals such as copper, silver.The metal wire live width w of side's ring structure 22 is 0.05mm.
Fig. 5 is the arrange sketch map of square patch 11 at first substrate, 10 outer surfaces; Fig. 6 side of being ring structure 22 is folded in the sketch map of arranging between first substrate 10 and second substrate 20; Fig. 7 is the arrange sketch map of square patch 11 on second substrate, 20 outer surfaces.
In the present invention, it is 2.65 that substrate is selected relative dielectric constant, and loss angle tangent is 0.001 material.In a preferred embodiment, first substrate 10 and second substrate 20 are the F4B material.First substrate 10 and second substrate 20 perhaps interconnect through assembling through the filling liquid raw substrate.Artificial micro-structural ( square patch 11,33; Side's ring structure 22) through etched mode attached on first substrate 10 and second substrate 20, certain artificial micro-structural also can adopt platings, brill quarter, photoetching, electronics quarter perhaps ion quarter etc. mode attached to substrate.Artificial micro-structural adopts copper cash to process, and can certainly adopt electric conducting materials such as silver-colored line, ITO, graphite or CNT to process.The wideband of illustrating in the accompanying drawing passes through the tabular that is shaped as of the ultra material of ripple; When actual design, also can design the shape that wideband passes through the ultra material of ripple according to the actual requirements; Can be designed to spherical shape when being used as radome or with the shape (conformal radome) of antenna pattern coupling etc.; Do not get 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.
It is as shown in Figure 8 with the sketch map of frequency change that wideband of the present invention passes through the S parameter of the ultra material of ripple, and it is 2.65 that first substrate 10 and second substrate 20 are selected relative dielectric constants, and loss angle tangent is 0.001 material, for example chooses the F4B material.Can know that by Fig. 8 wideband of the present invention passes through the ultra material of ripple, and for example the wave penetrate capability in 6 ~ 18GHz frequency band is all fine at the frequency band of broad, pass through wave system and count S21 and approach 1; And reflection coefficient S11 is very little; Have good ripple effect thoroughly, have low side surface, the advantage that passband is smooth.And the transmission coefficient S21 in the frequency range is very little beyond 6 ~ 18GHz, and reflection coefficient S11 is very big, and this just makes useful frequency range see through, and the realization selectivity is passed through ripple, has good frequency selective characteristic.Regulate square patch 11,33, the concrete size of square ring structure 22 can change the passband frequency range of ripple, can adjust the size of artificial micro-structural according to actual needs.
The present invention also provides a kind of radome, is used to be located at antenna, comprises that aforesaid wideband passes through the ultra material of ripple.Can make conformal special shape to radome; Make the electromagnetic scattering that shines radome to other directions; Not only reduced of the interference of the outer clutter of frequency band greatly, and effectively reduced the outer scattering section of band of antenna system, therefore be fit to very much be applied to radar antenna electric equipment.
The present invention also provides a kind of antenna system, comprises antenna and aforesaid radome, and radome covers on the antenna.Antenna 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 can be such as but not limited to plate aerial.
The present invention is through adhering to the artificial micro-structural of given shape on substrate, obtain the electromagnetic response that needs, makes that the wave penetrate capability based on the radome of ultra material strengthens the antijamming capability increase.Can be through regulating shape, the size of artificial micro-structural; Change relative dielectric constant, refractive index and the impedance of material; Thereby realize impedance matching with air; To increase the transmission of incident electromagnetic wave to greatest extent, reduced traditional antenna and be covered with the restriction of timing material thickness and dielectric constant.And wideband of the present invention pass through the ultra material of ripple and radome in 6 ~ 18GHz frequency band to pass through weave efficiency very high, loss is less, and has selectivity and pass through wave energy.
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. a wideband passes through the ultra material of ripple; It is characterized in that; Comprise first substrate and second substrate, be folded with the square ring structure of one deck array arrangement between first substrate and second substrate, the outer surface array arrangement of the outer surface of first substrate and second substrate has square patch.
2. wideband according to claim 1 passes through the ultra material of ripple, it is characterized in that, on the outer surface of first substrate on the outer surface of the square patch of array arrangement and second substrate shape and size of the square patch of array arrangement identical.
3. wideband according to claim 2 passes through the ultra material of ripple; It is characterized in that; Said wideband passes through the ultra material of ripple can be divided into a plurality of ultra material cell; Each ultra material cell comprises first base board unit, second base board unit, also comprise be arranged between the first base board unit outer surface, first base board unit and second base board unit successively, the square patch of the second base board unit outer surface, square ring structure, square patch.
4. wideband according to claim 3 passes through the ultra material of ripple, it is characterized in that, said square patch comprises four measure-alike square sub-pasters, and four square sub-pasters are arranged on the place, four end angles of first base board unit and second base board unit.
5. wideband according to claim 4 passes through the ultra material of ripple, it is characterized in that, said square sub-paster is close to the border at the end angle of first base board unit and second base board unit.
6. wideband according to claim 4 passes through the ultra material of ripple, it is characterized in that, said side's ring structure is close to the border of said ultra material cell.
7. wideband according to claim 6 passes through the ultra material of ripple, it is characterized in that the length of said ultra material cell and the wide 8mm that is.
8. wideband according to claim 7 passes through the ultra material of ripple, it is characterized in that, square sub-paster is square paster, and the length of side is 2mm.
9. a radome is characterized in that, is used to be located at antenna, comprises like each described wideband of claim 1 ~ 8 passing through the ultra material of ripple.
10. an antenna system is characterized in that, comprises antenna and radome as claimed in claim 9, and said radome covers on the antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210226210.3A CN102760962B (en) | 2012-07-03 | 2012-07-03 | Wideband wave-transmitting metamaterial, and antenna housing and antenna system formed by same |
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| CN201210226210.3A CN102760962B (en) | 2012-07-03 | 2012-07-03 | Wideband wave-transmitting metamaterial, and antenna housing and antenna system formed by same |
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| CN102760962A true CN102760962A (en) | 2012-10-31 |
| CN102760962B CN102760962B (en) | 2015-03-11 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103715513A (en) * | 2014-01-17 | 2014-04-09 | 中国科学院光电技术研究所 | Broadband wave-absorbing material based on sub-wavelength metal structure |
| CN104934705A (en) * | 2014-03-18 | 2015-09-23 | 深圳光启创新技术有限公司 | Bandpass filter metamaterial, antenna cover and antenna system |
| CN107240778A (en) * | 2017-06-21 | 2017-10-10 | 中国人民解放军空军工程大学 | Metamaterial antenna cover |
| CN107453051A (en) * | 2017-07-06 | 2017-12-08 | 南京航空航天大学 | Antenna and its performance implementation method based on imperfect frequency-selective surfaces |
| CN110416739A (en) * | 2019-08-05 | 2019-11-05 | Oppo广东移动通信有限公司 | Housing assembly and mobile terminal |
| CN110768027A (en) * | 2019-10-28 | 2020-02-07 | 西南交通大学 | Broadband low-RCS wide-angle scanning phased array antenna |
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| US5208603A (en) * | 1990-06-15 | 1993-05-04 | The Boeing Company | Frequency selective surface (FSS) |
| US20090273527A1 (en) * | 2008-05-05 | 2009-11-05 | University Of Central Florida Research Foundation, Inc. | Low-profile frequency selective surface based device and methods of making the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5208603A (en) * | 1990-06-15 | 1993-05-04 | The Boeing Company | Frequency selective surface (FSS) |
| US20090273527A1 (en) * | 2008-05-05 | 2009-11-05 | University Of Central Florida Research Foundation, Inc. | Low-profile frequency selective surface based device and methods of making the same |
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| BO HOU等: "Electromagnetic wave transmission through subwavelength metallic meshes sandwiched between split rings", 《APPLIED PHYSICS LETTERS》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103715513A (en) * | 2014-01-17 | 2014-04-09 | 中国科学院光电技术研究所 | Broadband wave-absorbing material based on sub-wavelength metal structure |
| CN103715513B (en) * | 2014-01-17 | 2016-03-30 | 中国科学院光电技术研究所 | Broadband wave-absorbing material based on sub-wavelength metal structure |
| CN104934705A (en) * | 2014-03-18 | 2015-09-23 | 深圳光启创新技术有限公司 | Bandpass filter metamaterial, antenna cover and antenna system |
| CN104934705B (en) * | 2014-03-18 | 2024-02-02 | 深圳光启高等理工研究院 | Bandpass filtering metamaterial, radome and antenna system |
| CN107240778A (en) * | 2017-06-21 | 2017-10-10 | 中国人民解放军空军工程大学 | Metamaterial antenna cover |
| CN107453051A (en) * | 2017-07-06 | 2017-12-08 | 南京航空航天大学 | Antenna and its performance implementation method based on imperfect frequency-selective surfaces |
| CN110416739A (en) * | 2019-08-05 | 2019-11-05 | Oppo广东移动通信有限公司 | Housing assembly and mobile terminal |
| CN110768027A (en) * | 2019-10-28 | 2020-02-07 | 西南交通大学 | Broadband low-RCS wide-angle scanning phased array antenna |
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|---|---|
| CN102760962B (en) | 2015-03-11 |
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Effective date of registration: 20151125 Address after: 518057, Nanshan District hi tech Zone, central high tech 9, a software building No. 2, building on the ground floor, Shenzhen 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. |