High frequency characteristics of coaxial boundary-loaded resonator with three cavities

This paper researches the high frequency characteristics of coaxial boundary-loaded resonator with three cavities.It adopts the Borgnis potential function in cylindrical coordinate system to solve the field expression in each region, and then uses boundary conditions and matching conditions in adjacent domains to derive the dispersion relation and field expression of the angularly uniform TM mode in the resonator. The resonant frequency and field distribution obtained are basically consistent with the simulation results.