Wave Propagation Characteristics of Dielectric Tube Waveguide Filled with Plasma

Dielectric tube wave guide filled with plasma is an open wave guide structure that belongs to the class of surface wave propagation. In this paper, analytical theory of dielectric tube wave guide filled with plasma has been formulated and dispersion relation is numerically investigated for the guided mode propagation. This structure is analyzed for lower order hybrid modes with an aim to increase bandwidth for single mode propagation. Wave propagation characteristics show that it is possible to reconfigure the characteristics of wave guide for wide mono mode bandwidth by changing plasma density and cladding to core ratio.