Vector SS-SIE for Electromagnetic Analysis of Complex Scatters Embedded in Multilayers

An accurate and efficient single-source surface integral equation (SS-SIE) is proposed to solve the electromagnetic scattering caused by multilayered structure with transverse electric (TE) excitation in this paper. Through the novel use of the surface equivalence theorem (SET), which is distinct from the classical Love's equivalence theorem, the equivalent model is derived, where only electric current exists at the outermost contour. Therefore, significant less unknowns are required to solve the electromagnetic problems induced by multilayered structure. The results show that the proposed SS-SIE formulation have better performance in the number of unknowns, CPU time and memory consumption compared with the traditional PMCHWT formulation.