Patent ID: 6087911
Filing Date: 2000-07-11
Classification: H01P

Abstract:
A dielectric filter, comprising:a dielectric block having a first end surface and a second end surface opposite to said first end surface;a plurality of resonator holes passing through said dielectric block from said first end surface to said second end surface of said dielectric block;an inner conductor provided on a respective inner surface of each of said resonator holes so as to provide a corresponding resonator; andan outer conductor provided on an outside surface of said dielectric block;wherein said first end surface of said dielectric block constitutes a short-circuit end surface for said resonators;said short-circuit end surface includes an inside portion including respective ends of adjacent ones of said resonator holes and an outside portion provided around said inside portion;said inside portion is electrically separated from said outside portion by a non-conducting portion substantially encircling said inside portion; andsaid inside portion is connected to said outside portion by a microinductance.