Scattering by a Planar Junction between Two Lossy Slabs in Radiopropagation Environments

Abstract A method is here proposed for predicting the field scattered by a planar junction between two penetrable lossy slabs having different features. The Geometrical Optics response is attained by extending the approach developed by Burnside and Burgener for lossless slabs. The diffraction contribution is evaluated by using a Physical Optics approximation of the equivalent surface currents densities induced by an incident plane wave and by performing a uniform asymptotic evaluation of the resulting radiation integral. Several numerical simulations are presented to demonstrate the validity of the proposed technique.