CN103762425B - A kind of dual-band dual-circular polarization common reflector battle array for two dimensional phased scanning - Google Patents
A kind of dual-band dual-circular polarization common reflector battle array for two dimensional phased scanning Download PDFInfo
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Abstract
For a dual-band dual-circular polarization common reflector battle array for two dimensional phased scanning, cover Ka frequency range and Ku frequency range.At the overlapping part of two frequency ranges, the basic composition unit of aerial array is that 8 Ka frequency range metal radiation sheets are around 1 Ku frequency range metal radiation sheet; In marginal portion, need between Ku frequency range metal radiation sheet to adjust spacing, form layout array closely, effectively can reduce secondary lobe, and suppress graing lobe; Different frequency range antenna adopts the metal radiation sheet of different polarization mode to form double-circle polarization, improves the polarization isolation of common reflector.Ka, Ku two band antennas are incorporated in same bore by rational deployment by the present invention, and adopt the means such as array optimization, polarization isolation to influence each other to be down to minimum, be applicable to and multiplely require that in the two dimensional phased array antenna system of low section, compact conformation, the two-dimensional phase realizing high scan angles is swept.
Description
Technical field
The present invention relates to a kind of dual-band dual-circular polarization common reflector battle array for two dimensional phased scanning, belong to antenna technical field.
Background technology
For solving the requirement for low section, compact conformation and high scan angles in two dimensional phased array antenna system, common reflector battle array becomes a kind of trend.The common reflector that Present Domestic extensively adopts outward, designs unspecially for two dimensional phased array antenna, and most of common reflector adopts Waveguide slot antenna or stepped construction to realize Shared aperture, and polarization is linear polarization.
Patent Dual-band dual-polarization co-aperture antenna (CN201120122507.6), common-caliber variable-beam-width waveguide crack array antenna (CN201210011667.2), common reflector involved by a kind of planar waveguide slot array antenna (CN201020695361.X) are Waveguide slot antenna, and polarization is linear polarization.Common reflector in L/S/X three-band dual-polarized planar antenna array (CN201010275940.3) and S/X dual-band dual-polarized shared-aperture micro-strip oscillator and dielectric resonator array antenna (CN200910198240.6) does not relate to higher frequency, and adopts multi-layer sheet stepped construction.Antenna involved by a kind of Double-frequency broadband ripple horn feed antenna (CN201110198475.2) is corrugated horn.
Summary of the invention
The object of the invention is: overcome the deficiencies in the prior art, a kind of low section, compact conformation, two-band, double-circle polarization are provided, be suitable for the common reflector of high scan angles, can be used for multiple two dimensional phased array antenna system.
Technical solution of the present invention is:
For a dual-band dual-circular polarization common reflector battle array for two dimensional phased scanning, comprising: microwave dielectric substrate, Ka frequency range metal radiation sheet, Ku frequency range metal radiation sheet and connector;
Described antenna array covers Ka frequency range and Ku frequency range, Ka frequency range metal radiation sheet and Ku frequency range metal radiation sheet are distributed in microwave dielectric substrate, at the overlapping part that central region is two frequency ranges, it is uniform Ku frequency range metal radiation sheet in marginal portion, at the overlapping part of two frequency ranges, the basic composition unit of aerial array comprises a Ka frequency range metal radiation sheet and a Ku frequency range metal radiation sheet, and the distribution of this Ka frequency range metal radiation sheet is square, around the individual Ku frequency range metal radiation sheet at center; Each Ka frequency range metal radiation sheet with all penetrate microwave dielectric substrate by connector below Ku frequency range metal radiation sheet and be connected a radio frequency component, form tile type two dimensional phased array antenna.
Described Ka frequency range metal radiation sheet and Ku frequency range metal radiation sheet are square.
Spacing between two adjacent Ka frequency range metal radiation sheets is not more than the Ka band wavelength of 0.5 times,
Spacing between the Ku frequency range metal radiation sheet that two, marginal portion is adjacent is not more than 0.43 times of Ku band wavelength.
The present invention's advantage is compared with prior art:
(1) Ka, Ku two band antennas are incorporated in same bore by rational deployment by the present invention, and adopt the means such as array optimization, polarization isolation to influence each other to be down to minimum, be applicable to and multiplely require that in the two dimensional phased array antenna system of low section, compact conformation, the two-dimensional phase realizing high scan angles is swept.
(2) by carrying out rational deployment to antenna edge, can effectively reduce secondary lobe and suppress graing lobe, especially when high scan angles;
Accompanying drawing explanation
Fig. 1 is aerial array basic composition unit vertical view of the present invention;
Fig. 2 is aerial array vertical view of the present invention;
Fig. 3 is inventive antenna array side view.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in detail.
The invention provides a kind of dual-band dual-circular polarization common reflector battle array for two dimensional phased scanning, by rational deployment, Ka, Ku two band antennas are incorporated in same bore, and adopt the means such as array optimization, polarization isolation to influence each other to be down to minimum, be applicable to and multiplely require that in the two dimensional phased array antenna system of low section, compact conformation, the two-dimensional phase realizing high scan angles is swept.
As shown in Figure 2 and Figure 3, comprising: microwave dielectric substrate 1, Ka frequency range metal radiation sheet 2, Ku frequency range metal radiation sheet 3 and connector 4; Ka frequency range metal radiation sheet 2 and Ku frequency range metal radiation sheet 3 are square.
Microwave dielectric substrate 1 is one deck double-side copper-applying microwave-medium plate, and dielectric-slab upper surface forms required aerial array by etching process, and lower surface directly contacts floor.Two frequencies of antenna cover are Ka frequency range and Ku frequency range respectively.
Described antenna array covers Ka frequency range and Ku frequency range, Ka frequency range metal radiation sheet 2 and Ku frequency range metal radiation sheet 3 are distributed in microwave dielectric substrate 1, at the overlapping part that central region is two frequency ranges, it is uniform Ku frequency range metal radiation sheet 3 in marginal portion, at the overlapping part of two frequency ranges, as shown in Figure 1, the basic composition unit of aerial array comprises 8 Ka frequency range metal radiation sheets 2 and 1 Ku frequency range metal radiation sheet 3, these 8 Ka frequency range metal radiation sheet 2 distributions are in square, around 1 Ku frequency range metal radiation sheet 3 at center, be equivalent to 9 Ka frequency range metal radiation sheet composition 3*3 arrays, change centre radiation fin into Ku frequency range metal radiation sheet afterwards, all penetrating microwave dielectric substrate 1 by connector 4 is connected a radio frequency component below for each Ka frequency range metal radiation sheet 2 and Ku frequency range metal radiation sheet 3, forms tile type two dimensional phased array antenna.
Spacing between two adjacent Ka frequency range metal radiation sheets 2 is not more than the Ka band wavelength of 0.5 times, spacing between Ku frequency range metal radiation sheet (3) that two, marginal portion is adjacent is not more than 0.43 times of Ku band wavelength, form layout array closely, effectively can reduce secondary lobe, and suppress graing lobe.
Different frequency range antenna adopts the metal radiation sheet of different polarization mode to form double-circle polarization, improves the polarization isolation of common reflector.
The part that the present invention does not elaborate belongs to techniques well known.
Claims (2)
1., for a dual-band dual-circular polarization common reflector battle array for two dimensional phased scanning, it is characterized in that comprising: microwave dielectric substrate (1), Ka frequency range metal radiation sheet (2), Ku frequency range metal radiation sheet (3) and connector (4);
Described antenna array covers Ka frequency range and Ku frequency range, Ka frequency range metal radiation sheet (2) and Ku frequency range metal radiation sheet (3) are distributed in microwave dielectric substrate (1), at the overlapping part that central region is two frequency ranges, it is uniform Ku frequency range metal radiation sheet (3) in marginal portion, at the overlapping part of two frequency ranges, the basic composition unit of aerial array comprises 8 Ka frequency range metal radiations sheet (2) and 1 Ku frequency range metal radiation sheet (3), these 8 Ka frequency range metal radiation sheet (2) distributions are in square, around 1 Ku frequency range metal radiation sheet (3) at center, all penetrating microwave dielectric substrate (1) by connector (4) is connected a radio frequency component below for each Ka frequency range metal radiation sheet (2) and Ku frequency range metal radiation sheet (3), forms tile type two dimensional phased array antenna,
Spacing between two adjacent Ka frequency range metal radiations sheet (2) is not more than the Ka band wavelength of 0.5 times, and the spacing between Ku frequency range metal radiation sheet (3) that two, marginal portion is adjacent is not more than 0.43 times of Ku band wavelength.
2. antenna array according to claim 1, is characterized in that: described Ka frequency range metal radiation sheet (2) and Ku frequency range metal radiation sheet (3) are square.
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| CN201310538063.8A CN103762425B (en) | 2013-11-04 | 2013-11-04 | A kind of dual-band dual-circular polarization common reflector battle array for two dimensional phased scanning |
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| CN201310538063.8A CN103762425B (en) | 2013-11-04 | 2013-11-04 | A kind of dual-band dual-circular polarization common reflector battle array for two dimensional phased scanning |
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| CN103762425B true CN103762425B (en) | 2016-03-30 |
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| CN113258306B (en) * | 2021-06-29 | 2021-11-26 | 成都锐芯盛通电子科技有限公司 | Ku/Ka dual-frequency composite phased-array antenna radiation array and design method thereof |
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| CN113871889B (en) * | 2021-09-26 | 2024-04-19 | 中国电子科技集团公司第三十八研究所 | Dual-band common-caliber antenna system |
| CN113725629B (en) * | 2021-11-02 | 2022-01-25 | 成都雷电微力科技股份有限公司 | High-power dual-frequency dual-polarized tile-type active phased-array antenna |
| CN115173052B (en) * | 2022-08-04 | 2024-01-30 | 中国电子科技集团公司第二十六研究所 | Integrated dual-frequency composite phased array antenna and phased array radar |
| CN117154407B (en) * | 2023-10-30 | 2024-01-23 | 成都雷电微力科技股份有限公司 | Ku/Ka dual-frequency dual-polarized common-caliber antenna unit and array |
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| CN101982900A (en) * | 2010-09-08 | 2011-03-02 | 上海大学 | L/S/X three-band dual-polarized planar antenna array |
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