Modes in Dielectric-Loaded Waveguides and Resonators

Analysis of nonaxially symmetric modes in circular wave-guides partially filled with high-dielectric constant material is presented. A method for the accurate determination of resonant frequencies of any mode excited in dielectrically loaded wavegnide cavities is described. The method is used to construct mode charts for dielectric resonators. Comparison of the resonant frequency calculations for several cases agrees closely with measurements.