Title :
On the equivalence of geometrical-optics reflected fields and the stationary-phase solution of the associated radiation integrals
Author_Institution :
Grintek Antennas, Pretoria, South Africa
Abstract :
This tutorial shows how the geometrical-optics expression for the field reflected from a surface can be derived directly from the general first-order stationary-phase solution of the associated radiation integral. It will improve the understanding of how these two techniques are related to one another. The material presented is ideally suited for post-graduate courses on high-frequency electromagnetics techniques.
Keywords :
electromagnetic wave reflection; electromagnetic wave scattering; geometrical optics; integral equations; GO; electromagnetic scattering; geometrical-optics reflected fields; high-frequency electromagnetics techniques; post-graduate courses; radiation integrals; stationary-phase solution; surface; Electromagnetic fields; Electromagnetic radiation; Electromagnetic reflection; Electromagnetic scattering; Equations; Geometrical optics; Optical propagation; Optical scattering; Optical surface waves; Physical optics;
Journal_Title :
Antennas and Propagation Magazine, IEEE
DOI :
10.1109/MAP.2002.1077790