Diffraction in Presence of Angular Regions Filled by Arbitrary Linear Media

In this work, we present a novel and general spectral theory to handle complex electromagnetic scattering problems. The technique is based on transverse equations for layered planar and angular structures, characteristic Green's function procedure, Wiener-Hopf technique. According to our opinion, for the first time, the proposed mathematical technique extends the possibilities of spectral analysis of EM problems in presence of angular regions filled by complex arbitrary linear media.