Patent ID: 6057745
Filing Date: 2000-05-02
Classification: H01P

Abstract:
A dielectric filter comprising:a dielectric plate;electrodes formed on both principal planes of said dielectric plate; pairs of electrode-free portions having substantially matching shapes defined in said electrodes in opposing relation, wherein regions in said dielectric plate positioned between said pairs of opposing electrode-free portions serve as resonance areas,coupling members are provided to be coupled with said resonance areas, anda cavity is provided to define a space surrounding said resonance areas and said coupling members, wherein:said cavity is defined in part by a base plate with electrodes formed on both principal planes of said base plate, and a plurality of conductor paths at around an outer boundary said cavity for making electrical connections between said electrodes formed on both principal planes of said base plate are formed in said base plate at portions conductively connected with said electrodes on said dielectric plate.