Open AccessA wideband low RCS reflection screen based on artificial magnetic conductor orthogonal array
Author(s) -
Zhao Yi,
Xiangyu Cao,
Jun Gao,
Yao Xü,
Ma Jia-Jun,
Sijia Li,
Huanhuan Yang
Publication year - 2013
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.62.154204
Subject(s) - wideband , optics , miniaturization , conductor , reflection (computer programming) , bandwidth (computing) , resonator , metamaterial , split ring resonator , radar cross section , reflection coefficient , materials science , scattering , optoelectronics , physics , computer science , telecommunications , composite material , programming language , nanotechnology
Based on the electromagnetic properties of complementary split ring resonator (CSRR), a novel artificial magnetic conductor (AMC), CSRR-AMC, is designed. The comparison of the reflection phase with square patch AMC reveals its features of miniaturization and multiband in-phase reflection, under X- and Y-polarized normal incident waves, respectively. Inspired by the reflection phase difference under different incident conditions, we have designed a wideband low rader cross-section (RCS) reflection screen with a single CSRR-AMC structure. The CSRR-AMC arrays are orthogonally positioned and the backscattering energy is reduced as a result of phase cancellation. Measured results demonstrate that -10dB RCS reduction is achieved in a wide frequency range of 7.38–10.47 GHz and the relative bandwidth is 34.6%, providing a new method for the design of wideband low scattering structure.