A dielectric resonator device in which resonant electrodes are provided in or on a dielectric block, and another ground electrode is formed on an outer face of the dielectric block. Lengths of the resonant electrodes are determined according to desired resonance frequencies of the respective resonators,...http://www.google.de/patents/US5572174?utm_source=gb-gplus-sharePatent US5572174 - Dielectric resonator device having resonator electrodes with gaps, and method of manufacturing the same
