Title :
A UTD description of surface and space wave excitation at the edge of an impedance wedge
Author :
Manara, G. ; Pathak, P. ; Pelosi, G. ; Tiberio, R.
Author_Institution :
Inst. of Electron. e Telecommun., Pisa Univ., Italy
Abstract :
The canonical problem of evaluating the field scattered at a finite distance from the edge of an impedance wedge which is illuminated by a line source is analyzed. Emphasis is placed on an analysis of surface wave excitation mechanisms. In particular, high-frequency expressions for the coupled surface wave-space wave contributions are presented. Also, suitable high-frequency diffracted field contributions are obtained to provide the continuity of the total field at the shadow boundaries of the surface waves.<>
Keywords :
electromagnetic wave diffraction; electromagnetic wave scattering; UTD; coupled surface wave-space wave contributions; electromagnetic diffraction; electromagnetic scattering; high-frequency diffracted field contributions; impedance wedge edge; line source; shadow boundaries; space wave excitation; surface wave excitation; total field; Boundary conditions; Conductors; Diffraction; Electromagnetic scattering; Geometrical optics; Material properties; Optical scattering; Optical surface waves; Surface impedance; Surface waves;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1991. AP-S. Digest
Conference_Location :
London, Ontario, Canada
Print_ISBN :
0-7803-0144-7
DOI :
10.1109/APS.1991.174761
