Open AccessDesign of high-gain broadband low-RCS waveguide slot antenna
Author(s) -
Yuxia Zhao,
Xiangyu Cao,
Di Zhang,
Yang Xu,
Sijia Li,
Heying Yang,
Wenqiang Li
Publication year - 2014
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.63.034101
Subject(s) - broadband , radar cross section , bandwidth (computing) , optics , conductor , high gain antenna , materials science , optoelectronics , physics , telecommunications , computer science , scattering , composite material
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.