Patent ID: 6229410
Filing Date: 2001-05-08
Classification: H01P

Abstract:
An integral dielectric filter comprising:a dielectric block having first and second end faces and a plurality of side faces extending between said end faces;a ground electrode coated on said second and side faces of said dielectric block;a plurality of through holes passing through said first end face and said second end face, with the surfaces of the through holes being coated with a conductive material to form internal electrodes;input and output electrodes formed on one of said side faces of said dielectric block insulatingly from said ground electrode, for forming an electromagnetic coupling with said internal electrodes of the plurality of said through holes; andat least one metallic coupling region formed on said one of said side faces between said input and output electrodes and on said first end face between said through holes insulatingly from said ground electrode and from said input and output electrodes to form a capacitive coupling between said input and output electrodes and said through holes.