CN102769201B - Double frequency band-pass electromagnetic wave transparent material and antenna house thereof and antenna system - Google Patents
Double frequency band-pass electromagnetic wave transparent material and antenna house thereof and antenna system Download PDFInfo
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- CN102769201B CN102769201B CN201210222196.XA CN201210222196A CN102769201B CN 102769201 B CN102769201 B CN 102769201B CN 201210222196 A CN201210222196 A CN 201210222196A CN 102769201 B CN102769201 B CN 102769201B
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Abstract
The present invention relates to double frequency band-pass electromagnetic wave transparent material and antenna house thereof and antenna system, double frequency band-pass electromagnetic wave transparent material includes at least one first substrate being made up of nonmetallic materials and attachment on the first substrate and multiple man-made microstructure of array arrangement, decussate texture that described man-made microstructure includes tilting predetermined angle and the in-line structure intersected vertically with four branches of described decussate texture respectively。The double frequency band-pass electromagnetic wave transparent material of the present invention and antenna house and antenna system thereof can be operated in two frequency ranges, and the wave transmission efficiency in these two frequency ranges is significantly high, and can shield other frequency ranges, thus exclusive PCR, it is ensured that the works fine environment of antenna。Antenna is plus after antenna house, and the radianting capacity of antenna obtains reinforcement, is effectively increased gain。
Description
Technical field
The present invention relates to antenna house, more particularly, it relates to double frequency band-pass electromagnetic wave transparent material and antenna house thereof and antenna system。
Background technology
Generally, antenna system all can be provided with antenna house。The purpose of antenna house is to protect 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 abrasion of antenna system, corrosion and aging simultaneously, increase the service life。But antenna house is the barrier before antenna, can produce aerial radiation ripple to absorb and reflection, change the free space Energy distribution of antenna, and affect the electric property of antenna to a certain extent。
Preparing material many employings dielectric constant of antenna house and loss angle tangent is low, mechanical strength is high material at present, such 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 to take into account the factors such as operation wavelength, antenna house size and dimension, environmental condition, material therefor performance in electric and structure; do not possess when protecting an antenna from external environment influence and strengthen antenna directivity and improve the function of antenna gain, wave transparent poor-performing。And, the working frequency range of antenna house is narrower and working frequency range is single, needs to change antenna house, it is impossible to realize reusing of resource, cause the waste of resource and the raising of equipment cost under different frequency range demands and multiband demand。
Summary of the invention
The technical problem to be solved in the present invention is in that, narrower for the above-mentioned wave transparent poor-performing of prior art, working frequency range and cannot meet the defect of multiband demand, it is provided that a kind of double frequency band-pass electromagnetic wave transparent material and antenna house thereof and antenna system。
The technical solution adopted for the present invention to solve the technical problems is: a kind of double frequency band-pass electromagnetic wave transparent material of structure, including at least one first substrate being made up of nonmetallic materials and attachment on the first substrate and multiple man-made microstructure of array arrangement, described man-made microstructure includes tilting predetermined angle decussate texture and the in-line structure intersected vertically with four branches of described decussate texture respectively。
In double frequency band-pass electromagnetic wave transparent material of the present invention, described predetermined angle is 30 ~ 60 degree。
In double frequency band-pass electromagnetic wave transparent material of the present invention, described in-line structure is positioned at the center of respective branches。
In double frequency band-pass electromagnetic wave transparent material of the present invention, described decussate texture tinsel that is equivalently-sized by two and that vertically divide equally is constituted。
In double frequency band-pass electromagnetic wave transparent material of the present invention, the length wiry of described decussate texture is 12 ~ 16mm, and width is 0.2mm。
In double frequency band-pass electromagnetic wave transparent material of the present invention, described in-line structure is made up of tinsel, and length wiry is 3 ~ 6mm, and width is 0.2mm。
In double frequency band-pass electromagnetic wave transparent material of the present invention, described double frequency band-pass electromagnetic wave transparent material also includes second substrate, and described man-made microstructure is folded between first substrate and second substrate。
In double frequency band-pass electromagnetic wave transparent material of the present invention, the thickness of described first substrate is 2mm, and the thickness of described man-made microstructure is 0.018mm。
The present invention also provides for a kind of antenna house, for being located at antenna, including double frequency band-pass electromagnetic wave transparent material as above。
The present invention also provides for a kind of antenna system, and including antenna and antenna house as above, described antenna house covers on antenna。
Implementing technical scheme, have the advantages that the man-made microstructure by adhering to given shape on substrate, obtain the electromagnetic response needed so that the wave transparent performance enhancement of antenna house, capacity of resisting disturbance increases。Can pass through to regulate the shape of man-made microstructure, size, change the relative dielectric constant of material, refractive index and impedance, thus realizing 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 double frequency band-pass electromagnetic wave transparent material of the present invention and antenna house and antenna system thereof can be operated in two frequency ranges, and the wave transmission efficiency in these two frequency ranges is significantly high, and can shield other frequency ranges, thus exclusive PCR, it is ensured that the works fine environment of antenna。Antenna is plus after antenna house, and the radianting capacity of antenna obtains reinforcement, is effectively increased gain。
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is based on the structural representation of the double frequency band-pass electromagnetic wave transparent material of one embodiment of the invention；
Fig. 2 is based on the arrangement schematic diagram of the man-made microstructure of one embodiment of the invention；
Fig. 3 is based on the schematic diagram of the single man-made microstructure of one embodiment of the invention；
Fig. 4 is based on the S21 parameters simulation schematic diagram of the double frequency band-pass electromagnetic wave transparent material of one embodiment of the invention。
Detailed description of the invention
The invention provides a kind of double frequency band-pass electromagnetic wave transparent material, including at least one first substrate being made up of nonmetallic materials and attachment on the first substrate and multiple man-made microstructure of array arrangement。The material manufacturing substrate has multiple choices, such as pottery, FR4, F4B(politef), HDPE(high density polyethylene (HDPE), HighDensityPolyethylene), ABS(AcrylonitrileButadieneStyrene), ferroelectric material or ferromagnetic material etc.。
As it is shown in figure 1, the double frequency band-pass electromagnetic wave transparent material in the present embodiment includes two-layer substrate, the first substrate 10 being namely made up of nonmetallic materials and second substrate 20, and it is located between first substrate 10 and second substrate 20 and multiple man-made microstructure 30 of array arrangement。It is 2.2 ~ 4.3 that first substrate 10 and second substrate 20 preferentially choose dielectric constant, the loss angle tangent material less than 0.005。
The planar structure with certain geometrical pattern of the silk thread composition that man-made microstructure 30 is made for conductive material。Here conductive material, it can be the metal material that the electric conductivity such as gold, silver, copper is good, or the alloy material of one or both being mainly composed of in gold, silver, copper, it is also possible to be the electrically conductive nonmetallic materials such as CNT, Al-Doped ZnO, indium tin oxide。In the present invention, it is preferable that copper or silver。
The concrete geometry pattern of man-made microstructure 30 is shown in the decussate texture 31 that Fig. 2 and Fig. 3, man-made microstructure 30 include tilting predetermined angle and the in-line structure 32 intersected vertically respectively with four branches of decussate texture 31。Decussate texture 31 tinsel that is equivalently-sized by two and that vertically divide equally is constituted。In-line structure 32 is made up of a wire。The number of the man-made microstructure of diagram is only signal, is merely to illustrate the arrangement situation between man-made microstructure, not as limitation of the present invention。Here predetermined angle can select within the scope of 30 ~ 60 degree, it is preferable that 30 degree, 45 degree, 60 degree。There is shown the predetermined angle of inclination is 45 degree。
In-line structure 32 and decussate texture 31 intersect vertically, and in a preferred embodiment of the invention, each in-line structure 32 is positioned at the center of the cross branch of its correspondence, as shown in Figure 3。The length wiry of decussate texture 31 is 12 ~ 16mm, width w1=0.2mm。In-line structure 32 is made up of tinsel, and length wiry is 3 ~ 6mm, width w2=0.2mm。The adjacent spacing between man-made microstructure 30 is 0.1 ~ 0.6mm。
The application effect of the double frequency band-pass electromagnetic wave transparent material of the present invention is described below in conjunction with specific embodiment。In one embodiment, the adjacent spacing between man-made microstructure 30 is 0.4mm, the length L1=14mm wiry of decussate texture 31, width w1=0.2mm。The length L2=5mm wiry of in-line structure 32, width w2=0.2mm。Tinsel is spun gold, filamentary silver or copper wire, or is the B alloy wire containing gold, silver or copper。The thickness of first substrate 10 and second substrate 20 is 2mm, and the thickness of man-made microstructure 30 is 0.018mm。In an embodiment of the present invention, first substrate 10 and second substrate 20 are prepared by politef (F4B)。
By filling liquid raw substrate or interconnected by assembling between first substrate 10 and second substrate 20。Man-made microstructure 30 is led to overetched mode and is attached on first substrate 10, and certain man-made microstructure 30 can also adopt plating, bores quarters, photoetching, electronics quarter or ion quarter etc., mode was attached on first substrate 10 or second substrate 20。First substrate 10 and second substrate 20 can also adopt other materials to make, such as pottery, HIPS(impact resistant polystyrene, Highimpactpolystyrene) material, ferroelectric material, ferrite material or ferromagnetic material make。Man-made microstructure 30 adopts copper cash to make, naturally it is also possible to adopt the conductive materials such as silver wire, ITO, graphite or CNT to make。
The double frequency band-pass electromagnetic wave transparent material with above-mentioned parameter is emulated, and its S21 parameters simulation figure is as shown in Figure 4。By Fig. 4 it will be seen that when frequency is 7.4351GHz(frequency 1), 10.564GHz(frequency 2), 15.11GHz(frequency 3) time, S21 parameter is-1dB。Double frequency band-pass electromagnetic wave transparent material has high wave transparent characteristic in 7.4 ~ 10.5GHz frequency band and 15.1 ~ 20GHz frequency band, and S21 parameter both is greater than-1dB, and has filter action in other frequency range。When practical application, by regulating the shape of man-made microstructure, size, thus it is possible to vary the relative dielectric constant of material, refractive index and impedance, thus two passbands move to high frequency or low frequency, or change bandwidth, meet different frequency bands demand。
Double frequency band-pass electromagnetic wave transparent material can also adopt multilager base plate, such as includes 3 laminar substrates, is equipped with the man-made microstructure of above-mentioned arrangement between adjacent substrate。It is equally reached the effect of double frequency band-pass。This performance is usable in the electromagnetic logical application scenario having particular/special requirement with resistance。
Therefore, the present invention also provides for a kind of antenna house, and this antenna house double frequency band-pass electromagnetic wave transparent material by mentioned earlier is made; for covering at antenna, while antenna is played a protective role, additionally it is possible to ensure that antenna is at working frequency range normal operation; mask uncorrelated frequency range, exclusive PCR。
It should be noted that, the shape of antenna house can be the tabular identical with the double frequency band-pass electromagnetic wave transparent material shape in accompanying drawing, the shape of designing antenna cover can also be carried out according to the actual requirements, such as it is designed to spherical shape or the shape (conformal antenna house) etc. mated with antenna pattern, also the shape using multiple plate-like structure to be spliced into needs, the invention is not limited in this regard it are not excluded for。
The present invention also provides for a kind of antenna system, including antenna, and antenna house as described above, antenna house covers on antenna。Antenna includes radiation source, feed element etc., and concrete composition see correlation technique data, the invention is not limited in this regard。Antenna body can be such as but not limited to plate aerial, microwave antenna, radar antenna etc.。
Implementing technical scheme, have the advantages that the man-made microstructure by adhering to given shape on substrate, obtain the electromagnetic response needed so that the wave transparent performance enhancement of antenna house, capacity of resisting disturbance increases。Can pass through to regulate the shape of man-made microstructure, size, change the relative dielectric constant of material, refractive index and impedance, thus realizing 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 double frequency band-pass electromagnetic wave transparent material of the present invention and antenna house and antenna system thereof can be operated in two frequency ranges, and the wave transmission efficiency in these two frequency ranges is significantly high, and can shield other frequency ranges, thus exclusive PCR, it is ensured that the works fine environment of antenna。Antenna is plus after antenna house, and the radianting capacity of antenna obtains reinforcement, is effectively increased gain。
Above in conjunction with accompanying drawing, embodiments of the invention are described; but the invention is not limited in above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is merely schematic; rather than it is restrictive; those of ordinary skill in the art is under the enlightenment of the present invention; without departing under present inventive concept and scope of the claimed protection situation, it may also be made that a lot of form, these belong within the protection of the present invention。
Claims (6)
1. a double frequency band-pass electromagnetic wave transparent material, it is characterized in that, including at least one first substrate being made up of nonmetallic materials and second substrate and be located between first substrate and second substrate and multiple man-made microstructure of array arrangement, described first substrate and second substrate are dielectric constant is 2.2～4.3, the loss angle tangent material less than 0.005, described man-made microstructure is by the decussate texture tilting predetermined angle, and the in-line structure composition intersected vertically with four branches of described decussate texture respectively, and four branches penetrate corresponding in-line structure respectively, described predetermined angle is 30～60 degree, the length wiry of described decussate texture is 12～16mm, width is 0.2mm, described in-line structure is made up of tinsel, length wiry is 3～6mm, width is 0.2mm, the adjacent spacing between man-made microstructure is 0.1～0.6mm。
2. double frequency band-pass electromagnetic wave transparent material according to claim 1, it is characterised in that described in-line structure is positioned at the center of respective branches。
3. double frequency band-pass electromagnetic wave transparent material according to claim 2, it is characterised in that described decussate texture tinsel that is equivalently-sized by two and that vertically divide equally is constituted。
4. double frequency band-pass electromagnetic wave transparent material according to claim 1, it is characterised in that the thickness of described first substrate is 2mm, the thickness of described man-made microstructure is 0.018mm。
5. an antenna house, it is characterised in that for being located at antenna, including the double frequency band-pass electromagnetic wave transparent material as described in any one of Claims 1 to 4。
6. an antenna system, it is characterised in that including antenna and antenna house as claimed in claim 5, described antenna house covers on antenna。
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| CN107394411A (en) * | 2017-07-20 | 2017-11-24 | 中国人民解放军空军工程大学 | C/X waveband double-frequencies lens antenna designs |
| CN110137685B (en) * | 2019-03-28 | 2020-11-10 | 西安电子科技大学 | Frequency selection surface structure applied to 5G communication and unit structure thereof |
| CN113612032A (en) * | 2021-07-23 | 2021-11-05 | 北京高信达通信科技股份有限公司 | Artificial dielectric complex, artificial dielectric lens and manufacturing method |
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Effective date of registration: 20210714 Address after: 2 / F, software building, No.9, Gaoxin Zhongyi Road, Nanshan District, Shenzhen City, Guangdong Province Patentee after: KUANG-CHI INSTITUTE OF ADVANCED TECHNOLOGY Address before: 18B, building a, CIC international business center, 1061 Xiangmei Road, Futian District, Shenzhen, Guangdong 518034 Patentee before: KUANG-CHI INNOVATIVE TECHNOLOGY Ltd. |
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