Title :
A three-dimensional UTD heuristic diffraction coefficient for complex penetrable wedges
Author :
Bernardi, Paolo ; Cicchetti, Renato ; Testa, Orlandino
Author_Institution :
Dept. of Electron. Eng., Rome Univ., Italy
fDate :
2/1/2002 12:00:00 AM
Abstract :
A three-dimensional heuristic diffraction coefficient, useful to predict the electromagnetic field scattered from penetrable wedges of complex geometry, is presented. The model, based on a modification of the exact uniform theory of diffraction (UTD) metallic wedge diffraction coefficient, allows the analysis of a large class of penetrable objects with an adequate degree of accuracy. Numerical results concerning the scattering from solid and hollow penetrable wedges show the suitability of the proposed diffraction coefficient to analyze complex structures of large practical interest. A good agreement with exact numerical results already available in the literature has been found
Keywords :
conducting bodies; dielectric bodies; electromagnetic wave scattering; geometrical theory of diffraction; 3D UTD heuristic diffraction coefficient; complex penetrable wedges; dielectric wedges; electromagnetic field scattering; metallic wedge diffraction coefficient; uniform theory of diffraction; Apertures; Dielectric losses; Electromagnetic diffraction; Electromagnetic fields; Electromagnetic scattering; Geometry; Microwave propagation; Physical theory of diffraction; Testing; Wireless LAN;
Journal_Title :
Antennas and Propagation, IEEE Transactions on