Highfrequency scattering from the edges of impedance discontinuities on a flat plane
Abstract
A highfrequency solution is presented for the scattering of a plane wave at the edges of surface impedance discontinuities on a flat ground plane. Arbitrary uniform isotropic boundary conditions and a direction of incidence perpendicular to the edges of the discontinuities are considered for both the transverse electric (TE) and transverse magnetic (TM) cases. An asymptotic approximation of the exact solution given by Maliuzhinets and a spectral extension of the geometrical theory of diffraction (GTD) are used. Uniform expressions for the scattered field received at a point on the surface are given, including surface wave contributions. Numerical results are shown and in some examples they are compared with those obtained from a moment method (MM) solution.
 Publication:

IEEE Transactions on Antennas and Propagation
 Pub Date:
 July 1983
 DOI:
 10.1109/TAP.1983.1143094
 Bibcode:
 1983ITAP...31..590T
 Keywords:

 Boundary Value Problems;
 Electrical Impedance;
 Electromagnetic Scattering;
 Flat Surfaces;
 Geometrical Theory Of Diffraction;
 High Frequencies;
 Asymptotic Methods;
 Boundary Conditions;
 Electromagnetic Surface Waves;
 Ground Effect (Communications);
 Integral Equations;
 Plane Waves;
 Communications and Radar