Resonant unit, filter comprising resonant unit, and filter assembly, antenna filter unit and radio comprising filter

Abstract

The present disclosure relates to a resonant unit for a filter, comprising a one-piece dielectric body having surfaces extending in planes defined by any two of three directions X, Y, Z which are perpendicular to each other and a conductive layer covering the surfaces of the dielectric body, characterized in that, the dielectic body comprises a first dielectric block made of a first dielectric material and extending longitudinally along the Z direction and a second dielectric block made of a second dielectric material, wherein the first dielectric block is embedded in the second dielectric material with both longitudinal ends of the first dielectric block being covered by the second dielectric material, and the first dielectric material has a dielectric constant greater than that of the second dielectric material. The present disclosure also relates to a filter comprising the above-said resonant unit, a filter assembly comprising the above-said filter, and an antenna filter unit or a radio comprising the above-said filter or filter assembly.

Dependencies are inferred from the claim text.