APPLICATION OF VOLUME DISCRETIZATION METHODS TO OBLIQUE SCATTERING FROM HIGH-CONTRAST PENETRABLE CYLINDERS

Two triangular-cell volume discretization methods for oblique scatteri ng from heterogeneous, penetrable cylinders are shown to maintain thei r accuracy and ease of applicability when applied to high-contrast sca tterers. The first method is an integral equation formulation; the sec ond is a differential equation formulation incorporating an exact radi ation boundary condition. For a cylinder aligned parallel to the z-axi s, the primary unknowns in both procedures are the z-components of the electric and magnetic fields. Potential applications include electrom agnetic penetration into biological tissue and scattering from radar a bsorbing materials.