PMCHW-AMCBFM for analysis of electromagnetic scattering by 3-D homogenous dielectric objects

In this article, we present a novel approach based on PMCHW integral equation formulation in conjunction with the adaptively modified characteristic basis function method (AMCBFM) to solve the scattering from homogenous dielectric bodies. In the new method, equivalent electric and magnetic currents on the surface of object are needed and expanded using RWG basis functions. AMCFBM is subsequently used into the former matrix equation. The studied object is partitioned into distinct blocks with some overlapped-domains between neighboring ones. The matrix equation is solved by direct solution instead of iterative methods. The compatibility, accuracy and efficiency of this novel approach are demonstrated by a variety of scattering problems.