SOME PERTURBATION EFFECTS IN MICROWAVE CAVITIES OPERATING IN DEGENERATE MODES

Abstract

It has been shown that the perturbation caused by the introduction of a metallic rod into a cylindrical cavity operating in the companion modes TEo", - TMlln produces different amounts of changes in the Q and the resonant frequencies for the two modes. The effect of increasing the radius and the: depth of insertion of the rod on the Q and the changes in the resonant freqnencies has been discussed.