Title :
A new heuristic UTD diffraction coefficient for nonperfectly conducting wedges
Author_Institution :
Dept. of Commun. Syst., Defence Res. Establishment, Linkoping, Sweden
fDate :
8/1/2000 12:00:00 AM
Abstract :
A new heuristic UTD diffraction coefficient for non-perfectly conducting wedges is proposed. The coefficient is an extension of the heuristic one given by Luebbers (1984) and as simple as that to compute. In the case of forward-scattering and neglecting the surface wave effects, the new coefficient gives a result close to Maliuzhinets´s (1958) solution, also deep in the shadow region where the previous one fails. Moreover, it makes the special care used by Luebbers to deal with grazing incidence unnecessary.
Keywords :
conducting bodies; electromagnetic wave scattering; geometrical theory of diffraction; forward-scattering; heuristic UTD diffraction coefficient; nonperfectly conducting wedges; shadow region; uniform theory of diffraction; Communication systems; Extraterrestrial phenomena; Geometrical optics; Optical diffraction; Optical reflection; Optical scattering; Optical surface waves; Physical theory of diffraction; Piecewise linear techniques; Surface waves;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
