Mode tuning of circular cylindrical microwave cavity loaded by lossy dielectric slab

摘要

A circular cylindrical metallic cavity loaded with homogeneous lossy dielectric slab is analysed. The mode tuning effects of loaded cavity are investigated, wherein the effect of the losses is introduced through the complex values of the dielectric constant and the frequency. The characteristic equation is obtained using the transverse resonance method. The complex resonant frequencies are determined by numerically solving this transcendental equation. The resonant frequencies and the damping factor curves versus filling factor of microwave cavity are shown.