Patent ID: 6294968
Filing Date: 2001-09-25
Classification: H01P,Y10T

Abstract:
A dielectric filter comprising a plurality of coaxial dielectric resonators, the resonators each comprising a dielectric body made of a dielectric material and having a through bore extending through opposite end faces thereof, the dielectric body being provided with an outer conductor layer and an inner conductor layer respectively on an outer peripheral surface thereof and an inner surface thereof defining the bore, the resonators being joined to one another with the outer peripheral surface of each resonator providing an adjoining surface,wherein the resonators are the same size, an interstage coupling window is formed in the same region of the adjoining surface of each of the adjacent resonators by removing the outer conductor layer, the outer conductor layers of the adjoining surfaces are joined with an electrically conductive bonding material, and an insulating adhesive material is provided in the interstage windows of the adjacent resonators.