CN102723598A - Metamaterial microwave antenna cover and antenna system - Google Patents
Metamaterial microwave antenna cover and antenna system Download PDFInfo
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- CN102723598A CN102723598A CN2012101738930A CN201210173893A CN102723598A CN 102723598 A CN102723598 A CN 102723598A CN 2012101738930 A CN2012101738930 A CN 2012101738930A CN 201210173893 A CN201210173893 A CN 201210173893A CN 102723598 A CN102723598 A CN 102723598A
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Abstract
The invention relates to a metamaterial microwave antenna cover and an antenna system. The metamaterial microwave antenna cover works within a frequency range of 7.0-8.5GHz, covers an antenna and comprises at least one metamaterial sheet layer, wherein each metamaterial sheet layer comprises a first base plate, a second base plate and a plurality of artificial microstructures with the same sizes, and the plurality of artificial microstructures are arranged in an array; and each artificial microstructure comprises a snowflake-shaped structure including a cross structure and four straight structures, wherein the four straight structures with the same sizes are respectively arranged on the four end points of the cross structure. The metamaterial microwave antenna cover disclosed by the invention works within the frequency range of 7.0-8.5GHz, the wave transmission efficiency in the frequency range is very high, and the loss is smaller.
Description
Technical field
The present invention relates to radome, more particularly, relate to ultra material microwave 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.
Summary of the invention
The technical problem that the present invention will solve is, to the relatively poor defective of the above-mentioned wave penetrate capability of prior art, a kind of ultra material microwave radome and antenna system is provided.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of ultra material microwave radome; Said ultra material microwave radome is operated in the 7.0-8.5GHz frequency range; Said ultra material microwave radome covers on the antenna; Comprise at least one ultra sheet of material, each ultra sheet of material comprise first substrate, second substrate and be folded in first substrate and second substrate between and a plurality of measure-alike artificial micro-structural of array arrangement;
Said artificial micro-structural comprises snowflake shape structure, and said snowflake shape structure comprises decussate texture and is separately positioned on four measure-alike in-line structures on four end points of said decussate texture.
In ultra material microwave radome of the present invention, first substrate in the said ultra sheet of material can be divided into a plurality of ultra material cell, wherein is placed with a said artificial micro-structural on each ultra material cell.
In ultra material microwave radome of the present invention, the length of each ultra material cell and the wide 9mm that is, the distance between the border of said artificial micro-structural and said ultra material cell is 0.1mm.
In ultra material microwave radome of the present invention, identical and wire that vertically divide equally constitutes said decussate texture by two sizes.
In ultra material microwave radome of the present invention, said in-line structure is made up of a wire, and said decussate texture is vertically divided said four in-line structures equally.
In ultra material microwave radome of the present invention, the live width of the metal wire of said decussate texture and in-line structure is 0.1mm.
In ultra material microwave radome of the present invention, the length of said in-line structure is 5.2 ~ 5.6mm.
In ultra material microwave radome of the present invention, the thickness of said first substrate and second substrate is 2mm.
In ultra material microwave radome of the present invention, said first substrate and second substrate are made by the ABS material.
The present invention also provides a kind of antenna system, comprises antenna and aforesaid ultra material microwave radome, and said ultra material microwave 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.And radome of the present invention be operated in the 7.0-8.5GHz frequency range, and in this frequency band to pass through weave efficiency very high, loss is less.
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 according to a ultra sheet of material of the ultra material microwave radome of one embodiment of the invention;
Fig. 2 is the structural representation that is piled up the ultra material microwave radome that forms by a plurality of ultra sheet of material shown in Figure 1;
Fig. 3 is the structural representation according to the ultra sheet of material of one embodiment of the invention;
Fig. 4 is the sketch map of arranging of artificial micro-structural;
Fig. 5 is the sketch map of artificial micro-structural;
Fig. 6 is the S parameter sketch map of ultra material microwave radome;
Fig. 7 is the S21 parameter comparison sketch map of ultra material microwave radome and pure ABS radome;
Fig. 8 is the impedance matching sketch map of ultra material microwave radome and air.
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.Ultra material radome based on artificial micro-structural can be through regulating shape, the size of 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.
The invention provides a kind of ultra material radome, comprise at least one ultra sheet of material 1, as depicted in figs. 1 and 2.Each ultra sheet of material 1 comprises first substrate 10, second substrate 20 and is folded between the two substrates and a plurality of measure-alike artificial micro-structural 30 of array arrangement.
Artificial micro-structural comprises snowflake shape structure, and said snowflake shape structure comprises decussate texture and is separately positioned on four measure-alike in-line structures on four end points of said decussate texture.When ultra sheet of material 1 has when a plurality of, each ultra sheet of material 1 is along the direction stack perpendicular to lamella, and is assembled into one through mechanical connection, welding or bonding mode, and is as shown in Figure 2.Usually, under the situation that can satisfy performance, a ultra sheet of material just can be used as ultra material radome and uses.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.First substrate 10 in the ultra sheet of material 1 can be divided into a plurality of ultra material cell, wherein is placed with an artificial micro-structural on each ultra material cell.
Fig. 3 shows the structural representation (perspective view) of ultra sheet of material.Ultra sheet of material 1 comprises the plate shape substrates of two identical even uniform thickness: first substrate 10 that is oppositely arranged and second substrate 20, the artificial micro-structural 30 that is attached with array arrangement on the surface of second substrate 20 of said first substrate 10.Ultra sheet of material 1 can be divided into a plurality of ultra material cell, wherein is placed with a said artificial micro-structural on each ultra material cell.In an embodiment of the present invention, be that example describes with two substrates, but when actual design, also can only adopt first substrate, and artificial micro structure array be arranged on first substrate 10, can reach the object of the invention equally.
Shown in Fig. 4-5, the length of each ultra material cell and the wide a=9mm that is, the spacing between the adjacent artificial micro-structural 30 is 0.2mm, the distance between the border of artificial micro-structural 30 and ultra material cell is w2=0.1mm.Each artificial micro-structural 30 comprises snowflake shape structure, and snowflake shape structure comprises decussate texture 31 and is separately positioned on four measure-alike in-line structures 32 on four end points of said decussate texture.Identical and wire that vertically divide equally constitutes decussate texture 31 by two sizes.In-line structure 32 is made up of a wire, and decussate texture 31 is vertically divided four in-line structures 32 equally.The live width w1=0.1mm of the metal wire of decussate texture 31 and in-line structure 32.The length of in-line structure is b=5.2 ~ 5.6mm.
In an embodiment of the present invention, the length of in-line structure is b=5.5mm.The thickness of first substrate 10 and second substrate 20 is 2mm, and the thickness of artificial micro-structural 30 is 0.018mm.The length of the metal wire of decussate texture 31 is 8.6mm.The numerical value here is merely example, in practical application, can adjust according to actual demand, and the present invention does not limit this.
In an embodiment of the present invention, first substrate 10 and second substrate 20 are made by ABS (Acrylonitrile Butadiene Styrene) material.Perhaps interconnect through the filling liquid raw substrate between first substrate 10 and second substrate 20 through assembling.Attached on first substrate 10, certain artificial micro-structural 30 also can adopt plating, bores quarter artificial micro-structural 30 through etched mode, photoetching, electronics is carved or ion quarter etc. mode attached on first substrate 10 or second substrate 20.First substrate 10 and second substrate 20 also can adopt other materials to process; Process such as pottery, PP (polypropylene), FR4, HDPE (high density polyethylene (HDPE), High Density Polyethylene), F4B (polytetrafluoroethylene), ferroelectric material, ferrite material or ferromagnetic material.Artificial micro-structural 30 adopts copper cash to process, and can certainly adopt electric conducting materials such as silver-colored line, ITO, graphite or CNT to process.The radome of illustrating in the accompanying drawing be shaped as tabular; When actual design, 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.; 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.
Shown in Fig. 6-7, used first substrate 10 and second substrate 20 are made by the ABS material S parameter of the ultra material microwave radome of present embodiment with the sketch map of frequency change.Can be seen that by Fig. 6 S21 approaches 0 in the 7-8.5GHz frequency range, S11 is very little.Fig. 7 is the S21 parameter comparison sketch map of ultra material microwave radome and pure ABS radome, can be seen by Fig. 7, and the present invention is when adhering on the substrate that the S21 parameter is at 7GHz after the artificial micro-structural, and the S21 parameter is-0.24224dB; When 8.5GHz, the S21 parameter is-0.28249dB.Can know that from Fig. 7 the S21 parameter is basically all greater than-0.3dB in the 7-8.5GHz frequency range.Through to pure ABS radome with added the S21 parameter comparison (Fig. 7) of artificial micro-structural, it is high more a lot of than the wave penetrate capability of pure ABS radome to draw the ultra material microwave radome that has added artificial micro-structural, is fit to very much do the wave antenna cover.Fig. 8 shows DIELECTRIC CONSTANTS, magnetic permeability μ and the impedance η sketch map of ultra material microwave radome, can find out that in the 7-8.5GHz scope, impedance η approaches 1, and is splendid with the air coupling.Adopt radome of the present invention to have good wave penetrate capability, loss is less.
The present invention also provides a kind of antenna system, comprises antenna, and ultra material microwave radome as indicated above, and ultra material microwave 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 ultra material microwave radome of the present invention is operated in the 7-8.5GHz frequency range, in this frequency band to pass through weave efficiency very high, loss is less.
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. ultra material microwave radome; It is characterized in that; Said ultra material microwave radome is operated in the 7.0-8.5GHz frequency range; Said ultra material microwave radome covers on the antenna, comprises at least one ultra sheet of material, each ultra sheet of material comprise first substrate, second substrate and be folded in first substrate and second substrate between and a plurality of measure-alike artificial micro-structural of array arrangement;
Said artificial micro-structural comprises snowflake shape structure, and said snowflake shape structure comprises decussate texture and is separately positioned on four measure-alike in-line structures on four end points of said decussate texture.
2. ultra material microwave radome according to claim 1 is characterized in that first substrate in the said ultra sheet of material can be divided into a plurality of ultra material cell, wherein is placed with a said artificial micro-structural on each ultra material cell.
3. ultra material microwave radome according to claim 2 is characterized in that, the length of each ultra material cell and the wide 9mm that is, and the distance between the border of said artificial micro-structural and said ultra material cell is 0.1mm.
4. ultra material microwave radome according to claim 3 is characterized in that, identical and wire that vertically divide equally constitutes said decussate texture by two sizes.
5. ultra material microwave radome according to claim 4 is characterized in that said in-line structure is made up of a wire, and said decussate texture is vertically divided said four in-line structures equally.
6. ultra material microwave radome according to claim 5 is characterized in that the live width of the metal wire of said decussate texture and in-line structure is 0.1mm.
7. ultra material microwave radome according to claim 6 is characterized in that the length of said in-line structure is 5.2 ~ 5.6mm.
8. ultra material microwave radome according to claim 1 is characterized in that the thickness of said first substrate and second substrate is 2mm.
9. ultra material microwave radome according to claim 1 is characterized in that said first substrate and second substrate are made by the ABS material.
10. an antenna system is characterized in that, comprises antenna and like each described ultra material microwave radome of claim 1 ~ 9,, said ultra material microwave radome covers on the antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210173893.0A CN102723598B (en) | 2012-05-30 | 2012-05-30 | Metamaterial microwave antenna cover and antenna system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210173893.0A CN102723598B (en) | 2012-05-30 | 2012-05-30 | Metamaterial microwave antenna cover and antenna system |
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| CN102723598A true CN102723598A (en) | 2012-10-10 |
| CN102723598B CN102723598B (en) | 2015-10-07 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106684569A (en) * | 2016-08-29 | 2017-05-17 | 复旦大学 | Intrinsic electromagnetic metamaterial meta-surface capable of supporting TE (transverse electric) surface waves and TM (transverse magnetic) surface waves |
| CN108598714A (en) * | 2018-04-26 | 2018-09-28 | 齐齐哈尔大学 | A kind of electromagnetic induced transparency metamaterial structure that polarization is unrelated |
| JPWO2018047937A1 (en) * | 2016-09-08 | 2019-07-04 | Nok株式会社 | Millimeter wave radar cover |
| CN112542685A (en) * | 2020-12-18 | 2021-03-23 | 北京大学 | Microwave and terahertz wave all-metal hyperbolic metamaterial antenna and implementation method thereof |
| CN112909570A (en) * | 2021-02-06 | 2021-06-04 | 中北大学 | Three-dimensional broadband wave-absorbing metamaterial integrating multiple absorption mechanisms |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040008145A1 (en) * | 2002-07-11 | 2004-01-15 | Harris Corporation | Spatial filtering surface operative with antenna aperture for modifying aperture electric field |
| US20070159395A1 (en) * | 2006-01-06 | 2007-07-12 | Sievenpiper Daniel F | Method for fabricating antenna structures having adjustable radiation characteristics |
| CN202231153U (en) * | 2011-07-26 | 2012-05-23 | 深圳光启高等理工研究院 | Offset-fed microwave antenna |
-
2012
- 2012-05-30 CN CN201210173893.0A patent/CN102723598B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040008145A1 (en) * | 2002-07-11 | 2004-01-15 | Harris Corporation | Spatial filtering surface operative with antenna aperture for modifying aperture electric field |
| US20070159395A1 (en) * | 2006-01-06 | 2007-07-12 | Sievenpiper Daniel F | Method for fabricating antenna structures having adjustable radiation characteristics |
| CN202231153U (en) * | 2011-07-26 | 2012-05-23 | 深圳光启高等理工研究院 | Offset-fed microwave antenna |
Non-Patent Citations (1)
| Title |
|---|
| KAI-SHYUNG CHEN ET AL: "Microstrip Antenna Gain Enhancement by Metamaterial Radome with More Subwavelength Holes", 《MICROWAVE CONFERENCE》, 7 November 2009 (2009-11-07) * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106684569A (en) * | 2016-08-29 | 2017-05-17 | 复旦大学 | Intrinsic electromagnetic metamaterial meta-surface capable of supporting TE (transverse electric) surface waves and TM (transverse magnetic) surface waves |
| JPWO2018047937A1 (en) * | 2016-09-08 | 2019-07-04 | Nok株式会社 | Millimeter wave radar cover |
| JP7159049B2 (en) | 2016-09-08 | 2022-10-24 | Nok株式会社 | Cover for millimeter wave radar |
| CN108598714A (en) * | 2018-04-26 | 2018-09-28 | 齐齐哈尔大学 | A kind of electromagnetic induced transparency metamaterial structure that polarization is unrelated |
| CN112542685A (en) * | 2020-12-18 | 2021-03-23 | 北京大学 | Microwave and terahertz wave all-metal hyperbolic metamaterial antenna and implementation method thereof |
| CN112542685B (en) * | 2020-12-18 | 2021-11-02 | 北京大学 | Microwave and terahertz wave all-metal hyperbolic metamaterial antenna and implementation method thereof |
| CN112909570A (en) * | 2021-02-06 | 2021-06-04 | 中北大学 | Three-dimensional broadband wave-absorbing metamaterial integrating multiple absorption mechanisms |
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| CN102723598B (en) | 2015-10-07 |
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Effective date of registration: 20151127 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. |