Dielectric ring-gap resonator for application in MMIC´s

A novel dielectric resonator-the dielectric ring-gap resonator- is introduced and analyzed. The resonant frequency and unloaded Q factor of the fundamental quasi-TE/sub 011/ mode have been calculated by a numerical field analysis and an appropriate equivalent circuit. The characteristics of the fundamental quasi-TE/sub 011/ mode in the dielectric ring-gap resonator have been experimentally investigated. New coupling techniques to couple the dielectric ring-gap resonator to, e.g., a microstrip line on a thin substrate, using the electric fringing field near the gap edges have been experimentally investigated.<>