The mode generation due to the wave transmission phenomena from a loss free isotropic cylindrical metallic waveguide to the semi-bounded plasma waveguide

Abstract

ABSTRACT Using the suitable boundary conditions, the problem of wave transmission from a loss free isotropic cylindrical metallic waveguide to a semi-bounded plasma waveguide has been analyzed. The considered configuration consists of two semi-bounded waveguides with different configurations. The first part of the waveguide system is a semi-bounded cylindrical waveguide with metallic wall, which is filled with a dielectric. The second part of the waveguide system is a semi-bounded dielectric waveguide with a plasma rod. An electromagnetic wave in a single mode has been considered to arrive from part one to part two of the waveguide system. Taking into account the boundary conditions on the interface surface of two regions, the reflection and the transmission coefficients have been calculated for each new modes of the reflected and the transmitted waves. Since the plasma is time dispersive, the reflection and transmission coefficients depend on the wave frequency. Therefore, the reflected and transmitted waves in each mode have a phase difference with respect to the incident wave.