Open AccessWideband RCS reduction of slot‐coupled patch antenna by AMC structure
Author(s) -
Xue Jingjing,
Jiang Wen,
Gong Shuxi
Publication year - 2017
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2017.2587
Subject(s) - wideband , reduction (mathematics) , antenna (radio) , radar cross section , conductor , perfect conductor , reflection (computer programming) , patch antenna , optics , acoustics , microstrip antenna , materials science , electronic engineering , physics , electrical engineering , computer science , engineering , scattering , mathematics , geometry , composite material , programming language
A novel approach to realise the wideband and polarisation‐independent radar cross‐section (RCS) reduction of a slot‐coupled patch antenna is proposed. The RCS reduction is based on the unique reflection phase properties of artificial magnetic conductor (AMC) and perfect electric conductor (PEC) cell. By using the quasi‐fractal structure in AMC design, 180° ± 37° reflection phase difference between AMC and PEC cells is obtained over 109% (6.4–21.7 GHz) frequency range. Then, the two different unit cells are applied properly to a slot‐coupled patch antenna for wideband RCS reduction. The simulated and measured results indicate that the proposed antenna realises a remarkable RCS reduction between 6.0 and 30.0 GHz for both phi‐ and theta‐polarised waves. Moreover, the radiation characteristics of the antenna are well kept simultaneously.