P. Nepa et al., A UTD SOLUTION FOR THE DIFFRACTION AT AN EDGE IN A PLANAR ANISOTROPICIMPEDANCE SURFACE - OBLIQUE-INCIDENCE CASE, Microwave and optical technology letters, 13(2), 1996, pp. 55-59
Electromagnetic scattering of plane waves obliquely incident on the ed
ge of a planar anisotropic impedance surface is analyzed. A rigorous a
nalytical solution, obtained by applying a procedure similar to that o
riginally proposed by Maliuzhinets, is derived with reference to a cou
ple of particular geometrical configurations. These latter are relevan
t to the case in which the anisotropic impedance surface is truncated
to originate on either the edge of a half-plane, the other face being
perfect electric conductor, or on a planar junction between the same a
nisotropic surface and a perfectly conducting plane. The exact integra
l representation for the total field is then asymptotically evaluated
in the context of the uniform geometrical theory of diffraction (UTD).
The particular kind of anisotropic surface impedance considered for t
he loaded face is suitable for modeling corrugated surfaces or strip-l
oaded grounded dielectric slabs, when the direction of either corrugat
ions or strips is perpendicular to the edge. (C) 1996 John Wiley & Son
s, Inc.