Electromagnetic Scattering by an Inhomogeneous Body of Revolution: a General Approach Based on the Hybrid Projection Method

Abstract

Numerical analysis of a body of revolution consisting of a homogeneous dielectric sphere and an external inhomogeneous dielectric layer with arbitrary generatrix at its excitation by external sources is carried out. A general algorithm of the analysis developed in the paper is based on the hybrid projection method involving projection of the fields on the transverse vector spherical functions combined with the one-dimensional method of finite elements in the projection form. The algorithm is realized in a MATLAB code for the case of excitation of the body by a circularly polarized plane wave propagating along the axis of revolution. Test numerical results are presented for dielectric and plasma spheres displaced from the origin of coordinates along the axis and compared with the data obtained as result of rigorous analytic solution.