SURFACE WAVES ON A DIELECTRIC DISC BACKED BY A METALLIC DISC

Abstract

The characteristic equation for surface waves (Eo) on a metal-disc backed dielectric disc is formulated and solved for radial and transverse propagation constants, attenuation constants and percentage reduction in phase velocity. Expressions for the power flow in the radial and transverse directions, and the division of power between the inside and outside the dielectric disc have also been derived. By using the perturbation technique, attenuation constant for Eo wave in the dielectric disc has been calculated.