Patent ID: 6150906
Filing Date: 2000-11-21
Classification: H01P

Abstract:
A high frequency (HF) filter using resonators of a convex-concave structure, comprising:a dielectric block having a plurality of grooves formed in a longitudinal direction on an upper face thereof;a grounding electrode formed by covering a first predetermined portion of an outer face of said dielectric block with conductive material;a plurality of resonators formed by covering a bottom and a second predetermined portion of height of each side of each groove with conductive material, for resonating signals inputted from the outside, whereby remaining height of each side of each groove not covered with conductive material electrically isolates each resonator from the rounding electrode;wherein the bottom is connected to the second predetermined portion;an input electrode formed on a third predetermined portion of the dielectric block, for inputting the signals from the outside; andan output electrode formed on a fourth predetermined portion of the dielectric block, for outputting the signals,wherein the input electrode is electrically isolated from the output electrode.