Investigation on scattering from 2D plasma coated target over rough sea surface

Abstract

An iterative strategy combining Kirchhoff Approximation (KA) with the hybrid finite element-boundary integral (FE-BI) method is employed in this paper to consider the interactions between the plasma coated target and the underlying rough sea surface. This hybrid FE-BI-KA scheme is an improved and generalized version of previous KA-MoM, whereas the newly presented technique can deal with inhomogeneous target. The multi-hybrid method is applied to investigate electromagnetic scattering from plasma coated target above rough sea surface. Discussion on the effects of plasma layer on scattering pattern are carried out by using this method, and several examples present the reduction of BSC near the backward direction when coated by plasma layer. Also the influences of both electron collision frequency and plasma angular frequency (which is determined by electron density) on the plasma stealth are considered respectively.