In-Band Radar Cross Section Reduction of Slot Array Antenna

被引：17
|
作者：
Jia, Yongtao [1 ]
Liu, Ying [1 ]
Zhang, Wenbo [1 ]
Wang, Jun [2 ]
Liao, Guisheng [3 ]
机构：
[1] Xidian Univ, Collaborat Innovat Ctr Informat Sensing & Underst, Sci & Technol Antenna & Microwave Lab, Xian 710071, Shaanxi, Peoples R China
[2] Beijing Electromech Engn Inst, Beijing 100074, Peoples R China
[3] Xidian Univ, Collaborat Innovat Ctr Informat Sensing & Underst, Natl Lab Radar Signal Proc, Xian 710071, Shaanxi, Peoples R China
来源：
IEEE ACCESS | 2018年 / 6卷
基金：
中国国家自然科学基金;
关键词：
Antenna; in-band radar cross section reduction (RCSR); polarization rotation reflective surface (PRRS); slot array antenna; RCS REDUCTION; SURFACE;
D O I：
10.1109/ACCESS.2017.2788043
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A slot array antenna is proposed for both in-band and out-of-band radar cross section (RCS) reduction. The presented slot array antenna is covered by the superstrate consisting of a polarization rotation reflective surface (PRRS). Four different configurations of the PRRS supersrtate are proposed and their effects on radiation and scattering performances of the slot array antenna have been investigated. By optimizing the arrangement of the unit cells of the PRRS, a good RCS reduction in an ultra-wide frequency band from 7 to 40 GHz is achieved. Besides, the in-band RCS of the proposed antenna is reduced by 12.4 dB compared with that of the reference antenna. Moreover, the 10 dB impedance bandwidth of the proposed antenna is enhanced from 3.5% to 14.2% and the gain remains nearly the same. Good agreement between the simulations and experiments is obtained.
引用
收藏
页码：23361 / 23367
页数：7
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