Dieelektrische Resonatorkonfiguration für Mikrowellen-Mehrpol-Bandpaßfilter

摘要

The invention relates to a dielectric resonator configuration which uses two dielectric spacers in order to separate the dielectric resonator from two end plates. The resonator configuration provides a very high unloaded Q-factor for a mixed electromagnetic double wave (HEM11 delta wave) and a strong modulation and coupling of the (HEM11 delta wave). A negative and a positive cross coupling between non-adjacent waves can thus be attained, and N = 2k (k = 2, 3, 4 )-pole bandpass filters having quasi elliptical properties can be realized. This resonator configuration also makes it possible to prevent a self-maintaining discharge for filters which operate with high capacity and low-pressure gas and to attain an improved wave separation for multichannel filters.