Wideband RCS Reduction Using Coding Diffusion Metasurface

被引：38
作者：
Ali, Luqman [1 ]
Li, Qinlong [1 ]
Khan, Tayyab Ali [2 ]
Yi, Jianjia [3 ]
Chen, Xiaoming [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Xian 710049, Shaanxi, Peoples R China
[2] City Univ Hong Kong, Dept Elect Engn, Hong Kong 999077, Peoples R China
[3] Xidian Univ, Key Lab Integrated Serv Networks, 2 South Taibai Rd, Xian 710071, Shaanxi, Peoples R China
来源：
MATERIALS | 2019年 / 12卷 / 17期
基金：
中国国家自然科学基金;
关键词：
radar cross-section (RCS); optimization algorithm; scattering field; metasurface; CROSS-SECTION REDUCTION; BROAD-BAND; RADAR; TRANSPARENT; ANGLE;
D O I：
10.3390/ma12172708
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
This paper presents a radar cross-section (RCS) reduction technique by using the coding diffusion metasurface, which is optimised through a random optimization algorithm. The design consists of two unit cells, which are elements '1' and '0'. The reflection phase between the two-unit cells has a 180 degrees +/- 37 degrees phase difference. It has a working frequency band from 8.6 GHz to 22.5 GHz, with more than 9 dB RCS reduction. The monostatic RCS reduction has a wider bandwidth of coding diffusion metasurface as compared to the traditional chessboard metasurface. In addition, the bistatic performance of the designed metasurfaces is observed at 15.4 GHz, which shows obvious RCS reduction when compared to a metallic plate of the same size. The simulated and measured result shows the proficiency of the designed metasurface.
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页数：11
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