Open AccessFinite-difference time-domain analysis on radar cross section of conducting cube scatterer covered with plasmas
Author(s) -
Shaobin Liu,
Guangfu Zhang,
Naichang Yuan
Publication year - 2004
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.53.2633
Subject(s) - radar cross section , cube (algebra) , plasma , collision frequency , plasma oscillation , isotropy , radar , corner reflector , physics , scattering , cross section (physics) , finite difference time domain method , computational physics , optics , geometry , mathematics , telecommunications , quantum mechanics , computer science
A PLJERC-FDTD algorithm is applied to the study of the scattering of perfectly conducting cube covered with homogeneous isotropic plasmas. The effects of plasma thickness, density and collision frequency on the radar cross section(RCS) of the conducting cube scatterer have been obtained. The results illustrate that the plasma cloaking can greatly reduce the RCS of radar targets, and the RCS of the perfectly conducting cube scatterer decreases with increasing plasma thickness when the plasma frequency is greatly less than the electromagnetic(EM) wave frequency; the RCS of the perfectly conducting cube scatterer decreases with increasing plasma thickness and plasma collision frequency when the plasma frequency is almost half as much as the EM wave frequency; the effects of plasma thickness and collision frequency on the RCS of the perfectly conducting cube scatterer is small when the plasma frequency is close to the EM wave frequency.