Title :
Scattering of an incident Gaussian beam by a perfectly conducting rough surface
Author_Institution :
Dept. of Electr. Eng. & Appl. Phys., Case Western Reserve Univ., Cleveland, OH, USA
fDate :
1/1/1994 12:00:00 AM
Abstract :
The modifications of the regular full wave theory for rough surface scattering by an incident Gaussian beam instead of a plane wave are developed. The Gaussian beam is produced by a large circular aperture that has a Gaussian illumination. It is shown that provided the incident Gaussian beam has a plane phase front over the extent of the rough surface patch and the linear dimensions of the rough patch are large compared with the surface height correlation length, the normalized scattering cross-section is the same as for an incident plane wave
Keywords :
electromagnetic wave scattering; Gaussian illumination; incident Gaussian beam; large circular aperture; linear dimensions; normalized scattering cross-section; perfectly conducting rough surface; plane phase front; regular full wave theory; Aperture antennas; Laser beams; Laser radar; Lighting; Radar antennas; Radar cross section; Radar scattering; Rough surfaces; Surface roughness; Surface waves;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
