Patent ID: 6496088
Filing Date: 2002-12-17
Classification: H01P

Abstract:
A dielectric filter, comprising:a dielectric block; a plurality of holes having first and second ends, provided in the dielectric block; inner conductors provided on the inner walls of the holes; and an outer conductor provided on the outer surface of the dielectric block so as to be disconnected from said inner conductors at the first end of the holes, and short-circuited to said inner conductors at the second end thereof, wherein the sectional shape of at least one of the holes is substantially constant in a range from the first end to the second end, and a step is provided in said at least one hole between the first end and the second end; whereby, in said at least one of the holes, a central axis of the hole when viewed from the first end and a central axis of the hole when viewed from the second end are offset.