Bistatic echo-width of a dielectric slab with wedge terminations

The bistatic scattered and backscattered electromagnetic field from a two-dimensional homogeneous lossy dielectric slab with wedge termination is analyzed. The analysis is performed using a technique combining geometrical optics ray-tracing and aperture integration to determine the forward scattering from a lossy dielectric slab with wedges. The analysis concentrates on determining the bistatic echo-width of a lossy dielectric wedge for different angles of incidence. The technique, referred to as the ray-tracing aperture integration (RTAI) technique, involves the determination of the far-zone scattered pattern from radiation integrals using equivalent currents. The RTAI is found to be simple, accurate, and suitable for high frequencies. It yields analytic solutions that require little numerical computation.<>