Analytic Solution and Spectral Analysis of the Differential Surface Admittance Electric Field Integral Equation for Spherical Geometries
In order to enable a rigorous spectral analysis of the existing single-source differential surface admittance electric field integral equation (DSA-EFIE), a fully analytical solution for scattering at a nonmagnetic homogeneous dielectric sphere is presented. To this end, the pertinent surface unknowns and operators are expanded into vector spherical harmonics, and subjected to a Galerkin method […]