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Compact low-RCS metasurface antenna array and design method thereof

A design method and antenna array technology, applied to antenna arrays, individually powered antenna arrays, antennas, etc., can solve the problems of relatively narrow bandwidth and low RCS antenna arrays, low ratio of effective radiating elements, etc., and achieve the effect of good scattering characteristics

Pending Publication Date: 2020-08-25
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
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  • Application Information

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Problems solved by technology

[0007] For above-mentioned deficiencies in the prior art, the object of the present invention is to provide a kind of compact low RCS metasurface antenna array and its design method, to solve the RCS reduction value of the antenna in the prior art is greater than the relatively narrow relative bandwidth of more than 10dB And the problem that the effective radiation unit ratio of the low RCS antenna array is not high

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  • Compact low-RCS metasurface antenna array and design method thereof
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  • Compact low-RCS metasurface antenna array and design method thereof

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[0048] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.

[0049] refer to figure 1 , figure 2 As shown, in the example, a kind of compact low RCS metasurface antenna array of the present invention comprises: 8 first rectangular patch units 1, 8 second bidirectional comb-shaped patch units 2, an intermediate dielectric layer 3, The metal backplane layer 4 and 8 first coaxial metal feed columns 5 and 8 second coaxial metal feed columns 6; the first rectangular patch unit 1 and the second bidirectional comb-shaped patch patch The chip units 2 are periodically printed and arranged in a checkerboard pattern on the upper surface of the intermediate dielectric layer 3, the metal backplane layer 4 is printed on the lower surface of the intermediate diele...

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Abstract

The invention discloses a compact low-RCS metasurface antenna array and a design method thereof. The antenna array comprises a metal patch layer, an intermediate dielectric layer, a metal backboard layer and a plurality of coaxial metal feed columns, and the metal patch layer, the intermediate dielectric layer and the metal backboard layer are seamlessly stacked in sequence from top to bottom; andthe plurality of coaxial metal feed columns respectively penetrate through the metal patch layer, the intermediate dielectric layer and the metal backboard layer. According to the invention, the tworadiation unit chessboards are arranged to realize coherent cancellation of the scattering field of the whole antenna, and the scattering field is dispersed to an angle without threat, so that the characteristic of low radar scattering cross section of the antenna broadband is realized.

Description

technical field [0001] The invention belongs to the technical field of antennas, and specifically refers to a compact low-RCS metasurface antenna array and a design method thereof. Background technique [0002] In today's high-tech electronic warfare, stealth technology is an important part of it, which has a decisive impact on the survival and combat capabilities of various weapons and equipment. The antenna is an important part of various combat platforms, and it is a structure with strong scattering characteristics in the target system. Therefore, effectively controlling the radar cross section (Radar CrossSection, RCS) of the reduced antenna becomes the key to designing a radar system with low detectability. [0003] A metasurface is a metal array with a subwavelength structure, which can flexibly manipulate electromagnetic waves, and then artificially adjust the amplitude, phase, and polarization of reflected or transmitted waves. In recent years, metasurfaces have be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/06H01Q1/36H01Q1/38H01Q1/50H01Q15/00
CPCH01Q21/065H01Q1/36H01Q1/38H01Q1/50H01Q15/0046H01Q15/0086
Inventor 杨阳徐晨月何小祥张晓媛
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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