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- Title
Ohmic Losses During Scattering of a Plane Electromagnetic Wave by a Metal Corrugated Surface.
- Authors
Koposova, E.
- Abstract
We estimate the ohmic losses in the case of scattering of a plane electromagnetic wave by a metal corrugated surface. Comparative analysis of the losses is performed for different regimes of wave incidence and scattering (self-collimation and different incidence angles), and their dependence on the amplitude and shape of the corrugation profile is studied. The study is based on numerical solving of the integral equation which describes the diffraction of a plane electromagnetic wave by a corrugated interface between two dielectrics. Metal is regarded as a dielectric with purely imaginary dielectric permittivity of a great value which is determined by metal conductivity. The waves with E polarization (i.e., the waves with the electric-field vector directed along the grooves), which are used in echelette gyrotron cavities, are studied in detail.
- Subjects
SCATTERING (Physics); ELECTROMAGNETIC waves; METALLIC surfaces; INTEGRAL equations; DIELECTRICS; GYROTRONS
- Publication
Radiophysics & Quantum Electronics, 2015, Vol 58, Issue 5, p350
- ISSN
0033-8443
- Publication type
Article
- DOI
10.1007/s11141-015-9609-y