Accurate and efficient computation of the Green's tensor for stratified media

Abstract

The technique for the computation of the Green's tensor in three dimensional stratified media is presented. The stratified media comprises of the layers with different permitivities and permeabilities. The singularities occurring in the Sommerfeld integrals are explained by deforming the integration path in the complex plane. The suggested examples illustrate the properties of the Green's tensor that represents the field radiated by three orthogonal dipoles embedded in the multilayer medium. The accuracy of this approach demonstrate the intrinsic physical properties of the Green's tensor in the stratified medium.