Abstract
The coupled-field volume integral equation-Dini series expansion (CFVIE-DSE) method is employed for electromagnetic scattering on inhomogeneous anisotropic-metallic objects. The anisotropic coating is both of gyroelectric and gyromagnetic type. Unlike traditional methods that describe the metallic core through a surface integral, a full-wave method is developed based on VIEs only, in conjunction with modified tensorial Green’s functions, taking into account the electric boundary condition (BC) on core’s perfect electric conducting surface. CFVIE-DSE is then solved using entire domain basis functions of Dini-type. New orthogonal sets in the domain of anisotropy are developed for the proper satisfaction of the physical BCs, along with the reduction of the CFVIE to algebraic form. The method is fully validated, and numerical results regarding radar cross section (RCS) computations for various anisotropic configurations are presented.
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