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Design of high-gain broadband low-RCS waveguide slot antenna

Zhao Yi Cao Xiang-Yu Zhang Di Yao Xu Li Si-Jia Yang Huan-Huan Li Wen-Qiang

Design of high-gain broadband low-RCS waveguide slot antenna

Zhao Yi, Cao Xiang-Yu, Zhang Di, Yao Xu, Li Si-Jia, Yang Huan-Huan, Li Wen-Qiang
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  • Received Date:  27 August 2013
  • Accepted Date:  23 September 2013
  • Published Online:  05 February 2014

Design of high-gain broadband low-RCS waveguide slot antenna

  • 1. School of Information and Navigation of AFEU, Xi’an 710077, China
Fund Project:  Project supported by the National Natural Science Foundation of China (Grant Nos. 60671001, 61271100), the Key Program of Natural Science Basic Research of Shanxi Province, China (Grant No. 2010JZ010), and the Natural Science Basic Research of Shanxi Province, China (Grant Nos. SJ08-ZT06, 2012JM8003).

Abstract: A novel design for high gain and low radar cross section (RCS) waveguide slot antenna is proposed. Low RCS screen composed of orthogonal array of complementary split ring resonator etched square patch artificial magnetic conductor (CSRR-AMC) is exploited on the antenna for radiation improvement and broadband RCS reduction. Measured results demonstrate that the operating bandwidth is increased by 100 MHz and the gain is enhanced by 3.2 dB with the proposed structure. Meanwhile, 10 dB RCS reduction is achieved over the range of 5.52–6.63 GHz, implying 20% relative bandwidth.

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