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

Two triangular-cell volume discretization methods for oblique scattering from heterogeneous, penetrable cylinders are shown to maintain their accuracy and ease of applicability when applied to high-contrast scatterers. The first method is an integral equation formulation; the second is a differential equation formulation incorporating an exact radiation boundary condition. For a cylinder aligned parallel to the z-axis, the primary unknowns in both procedures are the z-components of the electric and magnetic fields. Potential applications include electromagnetic penetration into biological tissue and scattering from radar absorbing materials.