In this paper, the exact differential surface admittance (DSA) operator for scattering analysis of a homogeneous dielectric sphere is constructed. By utilizing two sets of orthogonal vector spherical harmonics as the basis functions for a Galerkin Method of Moments, the operator in question is obtained analytically. In comparison with the Mie series solution for a tangential electric dipole as source, a combination of the electric field integral equation and the DSA is shown to produce the same result within 12 digits of accuracy, laying the foundations for a subsequent analysis into the operator’s fundamental properties.
Full-Wave Broadband Characterization of On-Chip Passives Subject to Etching Effects Using a Vectorial Unified Transform for Polyhedral Geometries
This paper presents a generalized formulation of the differential surface admittance (DSA) operator for three-dimensional electromagnetic analysis of arbitrary polyhedral geometries. Motivated by the increasing