부산대학교 도서관

We report on developments in the evaluation of matrix elements of the electric and magnetic field operators involving the asymptotic (large transverse wave-number or small transverse distances) components of the mixed-potential Green’s function of a layered medium. Subtracting these asymptotic terms significantly accelerates numerical computation of the Sommerfeld-type integrals required in constructing Green’s function and then x elements [1]. The described method is applicable to planar conducting structures embedded in a multi-layered medium. Ability of a fast and accurate evaluation of matrix elements for such structures is critical in many applications, especially in solving forward problems in design and optimization of electromagnetic metasurfaces.