Patent ID: 6069542
Filing Date: 2000-05-30
Classification: H01P,Y10T

Abstract:
A dielectric filter, comprisinga block of dielectric material comprising first and second parts, said parts having respective connection surfaces opposite to each other, said block having an outer surface, and two input/output electrodes disposed on the outer surface;a ground conductor disposed on the outer surface of said block except at locations adjacent to said input/output electrodes, whereby said ground conductor is electrically insulated from said input/output electrodes;a plurality of resonators provided in said block of dielectric material;at least one shielding electrode disposed in said dielectric block between a respective adjacent pair of said resonators, said shielding electrode having two ends both of which are connected to said ground conductor; anda conductor pattern disposed on the respective connection surface of one of said first and second parts;said conductor pattern having first portions establishing a capacitive coupling between said first portions and respective ones of said resonators; andsaid connection surface on which said conductor pattern is disposed is laminated against the other of said first and second parts such that said conductor pattern is embedded in said block of dielectric material.