A Single-Source Surface Integral Methods for Analysis of Dielectric Objects

Traditional surface integral methods require both of equivalent electric current and magnetic current for calculating the scattering of dielectric objects. This paper proposes a method that needs a single current, which is using the differential surface admittance operator. Compared to the Poggio-Miller-Chang-Harrington-Wu-Tsai (PMCHWT) method, the number of unknowns is only half of the PMCHWT formulation, and it requires only a quarter of the memory consumption of the PMCHWT equation. In terms of numerical verification, the method has been improved with BC (Buffa-Christiansen) basis functions and the accuracy has been verified.