CN102856661B - Bandpass wave-transmitting material and antenna housing and antenna system - Google Patents
Bandpass wave-transmitting material and antenna housing and antenna system Download PDFInfo
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- CN102856661B CN102856661B CN201210275231.4A CN201210275231A CN102856661B CN 102856661 B CN102856661 B CN 102856661B CN 201210275231 A CN201210275231 A CN 201210275231A CN 102856661 B CN102856661 B CN 102856661B
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Abstract
The invention relates to a bandpass wave-transmitting material, and an antenna housing and an antenna system. The bandpass wave-transmitting material comprises a first substrate produced by non-metal materials, and a plurality of artificial micro-structures which are attached to two opposite outer surfaces of the first substrate and distributed in an array manner, and no clearance exists between the adjacent artificial micro-structures; and each artificial micro-structure is a square paster provided with a snowflake-shaped notch structure, and a cross-shaped structure is also arranged in the snowflake-shaped notch structure. The bandpass wave-transmitting material, the antenna housing and the antenna system can be high in wave transmittance in work frequency range, and can shield other frequency ranges, thus eliminating interference and ensuring the good working environment of an antenna. The antenna housing is arranged on the antenna, the radiation capability of the antenna is enhanced, and the gain is effectively improved.
Description
Technical field
The present invention relates to radome, more particularly, relate to the penetrating wave material of band and radome and antenna system.
Background technology
Generally, antenna system all can be provided with radome.The object of radome protects antenna system from the impact of wind and rain, ice and snow, sand and dust and solar radiation etc., makes antenna system service behaviour more stable, reliable.Alleviate the wearing and tearing of antenna system, corrosion and aging simultaneously, increase the service life.But radome is the barrier before antenna, can produces aerial radiation ripple and absorb and reflection, change the free space Energy distribution of antenna, and affect the electric property of antenna to a certain extent.
Prepare material many employings dielectric constant of radome and loss angle tangent is low, mechanical strength is high material at present, as fiberglass, epoxy resin, high molecular polymer etc., the dielectric constant of material has unadjustable property.Structure mostly is uniform single walled structure, sandwich and spatial skeleton structure etc.; 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; under protection antenna is from the condition of external environment influence, do not possess the function of enhance antenna directionality and raising antenna gain, wave penetrate capability is poor.
Summary of the invention
The technical problem to be solved in the present invention is, for the defect that the above-mentioned wave penetrate capability of prior art is poor, provides the penetrating wave material of band and radome and antenna system.
The technical solution adopted for the present invention to solve the technical problems is: the penetrating wave material of a kind of band of structure, comprise the first substrate be made up of nonmetallic materials, and the two-phase being attached to first substrate externally goes up and multiple man-made microstructure of array arrangement on surface, gapless between adjacent man-made microstructure;
Described man-made microstructure is the square patch offering snowflake type groove structure, is also provided with decussate texture in described snowflake type groove structure.
In the penetrating wave material of band of the present invention, the center of described decussate texture and the center superposition of described snowflake type groove structure.
In the penetrating wave material of band of the present invention, described snowflake type groove structure comprises cross bath structure and is separately positioned on four in-line groove structures on four end points of described cross bath structure.
In the penetrating wave material of band of the present invention, described cross bath structure and the in-line groove vertically divided measure-alike by two is formed.
In the penetrating wave material of band of the present invention, the groove width of described in-line groove is greater than the groove width of described in-line groove structure.
In the penetrating wave material of band of the present invention, described decussate texture and the in-line Structure composing vertically divided measure-alike by two.
In the penetrating wave material of band of the present invention, the groove width of described in-line groove is 0.9mm, and the groove width of described in-line groove structure is 0.3mm, and the live width of described in-line structure is 0.3mm.
In the penetrating wave material of band of the present invention, the flute length of described in-line groove structure is 4mm, and the flute length of described in-line groove is 5mm, and the length of described in-line structure is 5mm, and the distance between the center of adjacent artificial's micro-structural is 6mm.
The present invention also provides a kind of radome, for being located at antenna, comprises the penetrating wave material of band as above.
The present invention also provides a kind of antenna system, and comprise antenna and radome as above, described radome covers on antenna.
Implement technical scheme of the present invention, have following beneficial effect: by adhering to the man-made microstructure of given shape on substrate, obtain the electromagnetic response needed, the wave penetrate capability of radome is strengthened, antijamming capability increases.Can by regulating shape, the size of man-made microstructure, change the relative dielectric constant of material, refractive index and impedance, thus realize the impedance matching with air, to increase the transmission of incident electromagnetic wave to greatest extent, decrease the restriction to material thickness and dielectric constant when traditional antenna cover designs.The penetrating wave material of band of the present invention and radome thereof and the wave transmission efficiency of antenna system in working frequency range very high, and other frequency ranges can be shielded, thus exclusive PCR, ensure that the works fine environment of antenna.After antenna adds radome, the radianting capacity of antenna obtains reinforcement, effectively improves gain.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the cutaway view of the penetrating wave material of band according to one embodiment of the invention;
Fig. 2 is the arrangement schematic diagram of man-made microstructure at an outer surface of the penetrating wave material of band of foundation one embodiment of the invention;
Fig. 3 is the arrangement schematic diagram of man-made microstructure at another outer surface of the penetrating wave material of band of foundation one embodiment of the invention;
Fig. 4 is the arrangement schematic diagram of the man-made microstructure according to one embodiment of the invention;
Fig. 5 is the schematic diagram of the single man-made microstructure in Fig. 4;
Fig. 6 ~ 7 are schematic diagrames of the snowflake type groove structure in Fig. 5;
Fig. 8 is the schematic diagram of the decussate texture in Fig. 5;
Fig. 9 is the S21 parameters simulation schematic diagram of the penetrating wave material of band according to one embodiment of the invention;
Figure 10 is the cutaway view of the penetrating wave material of band according to another embodiment of the present invention.
Embodiment
The invention provides the penetrating wave material of a kind of band, as shown in Figure 1 and 2.The first substrate 10 be made up of nonmetallic materials is comprised with penetrating wave material, and the two-phase being attached to first substrate 10 externally goes up and multiple man-made microstructure 31 of array arrangement on surface, gapless between adjacent man-made microstructure 31, multiple man-made microstructure forms two-layer man-made microstructure layer A, B on the external surface of two-phase.As shown in Figure 2, man-made microstructure is the square patch offering snowflake type groove structure, is also provided with decussate texture in snowflake type groove structure.The cutaway view of electromagnetic wave transparent material is shown in Fig. 1.
Be understandable that, the number of the man-made microstructure shown in Figure of description is only signal, for illustration of the arrangement situation between man-made microstructure, not as limitation of the present invention.
The material manufacturing substrate has multiple choices, such as pottery, FR4, F4B(polytetrafluoroethylene), HDPE(high density polyethylene (HDPE), High Density Polyethylene), ABS(Acrylonitrile ButadieneStyrene), ferroelectric material or ferromagnetic material etc.First substrate 10 preferably dielectric constant is 2.2, and loss angle tangent is the material of 0.001.The planar structure with certain geometrical pattern that man-made microstructure 31 is made for electric conducting material.Here electric conducting material, it can be the metal material that the electric conductivity such as gold, silver, copper is good, or main component is one or both the alloy material in gold, silver, copper, also can be the nonmetallic materials that carbon nano-tube, Al-Doped ZnO, indium tin oxide etc. can conduct electricity.In the present invention, preferably copper or silver.The thickness of first substrate 10 is 4 ~ 6mm.
Fig. 2 ~ 3 are man-made microstructure arrangement schematic diagrames at two outer surfaces of the penetrating wave material of band of foundation one embodiment of the invention.Outer surface is all placed with identical man-made microstructure 31, gapless between adjacent man-made microstructure 31.
Fig. 4 is the arrangement schematic diagram of man-made microstructure 31 on two outer surfaces.Fig. 5 is the schematic diagram of the single man-made microstructure 31 in Fig. 4.The concrete geometry pattern of man-made microstructure 31 is shown in shown in Fig. 5 ~ 8.Man-made microstructure 31, for offering the square patch of snowflake type groove structure 311, is also provided with decussate texture 312 in snowflake type groove structure.The center of decussate texture 312 and the center superposition of snowflake type groove structure 311.As shown in Figure 6, snowflake type groove structure 311 comprises cross bath structure 3111 and is separately positioned on four in-line groove structures 3112 on four end points of cross bath structure 3111 concrete shape of snowflake type groove structure 311.Cross bath the structure 3111 and in-line groove vertically divided measure-alike by two is formed.The decussate texture 312 and in-line Structure composing vertically divided measure-alike by two.In an embodiment of the present invention, the groove width w2 of in-line groove is greater than the groove width w1 of in-line groove structure 3112.
The effect of the penetrating wave material of band of the present invention is described below in conjunction with specific embodiment.In one embodiment, the square patch offering snowflake type groove structure 311 is square patch, and length of side a is 6mm, and the distance between the center of also i.e. adjacent artificial's micro-structural 31 is 6mm.The groove width w2 of in-line groove is 0.9mm, and the flute length b of in-line groove is 5mm; The groove width w1 of in-line groove structure 3112 is 0.3mm, and the flute length L1 of in-line groove structure 3112 is 4mm; The live width w3 of in-line structure is 0.3mm, and the length L2 of in-line structure is 5mm.In an embodiment of the present invention, first substrate 10 is obtained by polytetrafluoroethylene (F4B).Man-made microstructure 31 and second, third man-made microstructure 32,33 are made of copper.The dielectric constant of first substrate 10 is 2.2, and loss angle tangent is 0.001.The thickness of first substrate 10 is 5mm, and the thickness of man-made microstructure is 0.018mm.Above-mentioned parameter is only an example, not as limitation of the present invention.
Man-made microstructure 31 is led to overetched mode and is attached on first substrate 10, and the modes such as certain man-made microstructure 31 also can adopt plating, bores quarters, photoetching, electronics quarter or ion quarter are attached on first substrate 10.First substrate 10 also can adopt other materials to make, such as pottery, HIPS(impact resistant polystyrene, High impact polystyrene) material, ferroelectric material, ferrite material or ferromagnetic material make.
Emulate the penetrating wave material of the band with above-mentioned parameter, its S21 parameters simulation figure as shown in Figure 9.Can be seen by Fig. 9, very high in the wave transparent coefficient S 21 of X-band (8 ~ 12GHz), occurred high wave transparent passband, wave transmission effect is fine.And it is very little in other frequency range S21 parameter.When practical application, by regulating shape, the size of man-made microstructure, the relative dielectric constant of material, refractive index and impedance can be changed, thus passband moves to high frequency or low frequency, or change bandwidth.The signal disturbing of other frequency range can also be suppressed when realizing X-band wave transparent, realizing stealthy function.
Be with penetrating wave material also can adopt multilager base plate, such as comprise two-layer substrate, between adjacent substrate, be equipped with the man-made microstructure of above-mentioned arrangement.As shown in Figure 10, comprise two-layer substrate 10 and 20, and three-layer metal microstructured layers A, B, C, multiple man-made microstructure forms three layers of man-made microstructure layer A, B, C between the outer surface and substrate 10 and 20 of substrate 10 and 20.The effect that high wave transparent band is logical can be reached equally.
Therefore, the present invention also provides a kind of radome, and the penetrating wave material of this radome band is by mentioned earlier made; for covering at antenna, while antenna is played a protective role, can also ensure that antenna normally works at working frequency range; mask uncorrelated frequency range, exclusive PCR.
It should be noted that, the shape of radome can be the tabular identical with the penetrating wave material of the band in accompanying drawing shape, also the shape of designing antenna cover can be carried out according to the actual requirements, the shape (conformal radome) etc. being such as designed to spherical shape or mate with antenna pattern, also do not get rid of the shape using multiple plate-like structure to be spliced into needs, the present invention is not restricted this.
The present invention also provides a kind of antenna system, comprises antenna, and radome as described above, and radome covers on antenna.Antenna comprises radiation source, feed element etc., and concrete formation can consult correlation technique data, and the present invention is not restricted this.Antenna body can be such as but not limited to plate aerial, microwave antenna, radar antenna etc.
The penetrating wave material of band of the present invention and radome thereof and antenna system can be operated in two frequency ranges, and the wave transmission efficiency in these two frequency ranges is very high, and can shield other frequency ranges, thus exclusive PCR, ensure that the works fine environment of antenna.After antenna adds radome, the radianting capacity of antenna obtains reinforcement, effectively improves gain.
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 it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.
Claims (7)
1. be with a penetrating wave material, it is characterized in that, comprise the first substrate be made up of nonmetallic materials, and the two-phase being attached to first substrate externally goes up and multiple man-made microstructure of array arrangement on surface, gapless between adjacent man-made microstructure;
Described man-made microstructure is the square patch offering snowflake type groove structure, is also provided with decussate texture in described snowflake type groove structure; Described snowflake type groove structure comprises cross bath structure and is separately positioned on four in-line groove structures on four end points of described cross bath structure; Described cross is a part for described man-made microstructure;
The center of described decussate texture and the center superposition of described snowflake type groove structure;
Described cross bath structure and the in-line groove vertically divided measure-alike by two is formed;
The penetrating wave material of described band can be operated in two frequency ranges; Distance between the center of adjacent artificial's micro-structural is 6mm, groove width w2 and the flute length b of the in-line groove in described cross bath are respectively 0.9mm and 5mm, and groove width w1 and the flute length L1 of the in-line groove structure on the end points of described cross bath structure are respectively 0.3mm and 4mm.
2. the penetrating wave material of band according to claim 1, is characterized in that, the groove width of described in-line groove is greater than the groove width of described in-line groove structure.
3. the penetrating wave material of band according to claim 2, is characterized in that, described decussate texture and the in-line Structure composing vertically divided measure-alike by two.
4. the penetrating wave material of band according to claim 3, is characterized in that, the groove width of described in-line groove is 0.9mm, and the groove width of described in-line groove structure is 0.3mm, and the live width of described in-line structure is 0.3mm.
5. the penetrating wave material of band according to claim 4, it is characterized in that, the flute length of described in-line groove structure is 4mm, and the flute length of described in-line groove is 5mm, the length of described in-line structure is 5mm, and the distance between the center of adjacent artificial's micro-structural is 6mm.
6. a radome, is characterized in that, for being located at antenna, comprises the penetrating wave material of band as described in any one of Claims 1 to 5.
7. an antenna system, is characterized in that, comprise antenna and radome as claimed in claim 6, described radome covers on antenna.
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| CN201210275231.4A CN102856661B (en) | 2012-08-03 | 2012-08-03 | Bandpass wave-transmitting material and antenna housing and antenna system |
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| CN201210275231.4A CN102856661B (en) | 2012-08-03 | 2012-08-03 | Bandpass wave-transmitting material and antenna housing and antenna system |
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| CN102856661B true CN102856661B (en) | 2015-07-15 |
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| CN104934720B (en) * | 2014-03-18 | 2023-08-04 | 深圳光启高等理工研究院 | Low-permeability wave metamaterial, antenna housing and antenna system |
| CN105071036B (en) * | 2015-07-16 | 2018-08-14 | 武汉市灵动时代智能技术有限公司 | X-band intelligence Meta Materials wide-angle wave transparent antenna house |
| CN105914456A (en) * | 2016-04-13 | 2016-08-31 | 西安电子科技大学 | Broadband high-gain butterfly antenna based on artificial magnetic conductor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7429961B2 (en) * | 2006-01-06 | 2008-09-30 | Gm Global Technology Operations, Inc. | Method for fabricating antenna structures having adjustable radiation characteristics |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7429961B2 (en) * | 2006-01-06 | 2008-09-30 | Gm Global Technology Operations, Inc. | Method for fabricating antenna structures having adjustable radiation characteristics |
Non-Patent Citations (2)
| Title |
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| 一种新型复合单元频率选择表面;李小秋;《微波学报》;20080228;第24卷(第1期);第7-10页 * |
| 基于FDTD方法的频率选择表面建模和应用研究;赵芳芳;《硕士学位论文》;20120131;第1-20页 * |
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Effective date of registration: 20151120 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. |