SMALL SIZE CROSS COUPLING FILTER USING DIELECTRIC COAXIAL CABLE RESONATOR ARRAY

摘要

The present invention uses a TEM mode dielectric coaxial resonator mainly used at frequencies above the UHF band. The TEM mode dielectric coaxial resonators constituting the filter are arranged in an array, not arranged in a line, and thus cannot be coupled by forward coupling. It relates to a smaller filter which enables coupling between mode dielectric coaxial resonators through cross coupling.;The filter input and output terminals can be connected to any TEM mode dielectric coaxial resonator arranged in an array to implement a filter, and a coupling window can be made on all sides of the resonator in contact with another TEM mode dielectric coaxial resonator for cross coupling. By varying the shape, position and size of the window, the amount of coupling between the TEM mode dielectric coaxial resonators constituting the filter is controlled.