| Authors | A. Abdoli-Arani |
|---|---|
| Journal | IEEE T PLASMA SCI |
| Paper Type | Full Paper |
| Published At | 2013-8-01 |
| Journal Grade | ISI |
| Journal Type | Typographic |
| Journal Country | Iran, Islamic Republic Of |
| Journal Index | ISI |
Abstract
The dispersion relation of electromagnetic waves in a rippled-wall elliptical waveguide with a degenerate plasma column protected by an elliptical annular dielectric layer is theoretically investigated. Using the linear field theory, the dispersion relation of electromagnetic waves in a rippled-wall elliptical waveguide with a plasma rod and an elliptical annular dielectric is obtained. In addition, by injecting a finite thick annular intense relativistic electron beam in this waveguide, the dispersion relation of these waves is investigated. In addition, a cold and uniform plasma-filled traveling wave tube with sinusoidally corrugated slow-wave structure is driven by a finite thick elliptical annular intense relativistic electron beam with the entire system immersed in a strong longitudinal magnetic field. Using the linear field theory, the dispersion relation for the elliptical relativistic traveling wave tube is derived.