Scattering of electromagnetic waves by surface with small asperities
Abstract
Second-order perturbation theory (the Rayleigh-Rice approximation) is used to derive an analytical expression for the electromagnetic field scattered by periodic and slightly rough surfaces, characterized by an arbitrary permittivity. This expression is used to analyze: (1) critical phenomena (Wood anomalies) arising during thermal radio emission from a periodically rough water surface; and (2) a second-order radar cross section, describing the amplitude of high-frequency waves scattered by a slightly rough surface (e.g., the disturbed sea surface).
- Publication:
-
USSR Rept Electron Elec Eng JPRS UEE
- Pub Date:
- September 1984
- Bibcode:
- 1984RpEEE....Q..15G
- Keywords:
-
- Electromagnetic Scattering;
- Perturbation Theory;
- Surface Roughness Effects;
- Wave Diffraction;
- Fresh Water;
- Ocean Surface;
- Radar Cross Sections;
- Sea Water;
- Communications and Radar