TRIMMING OF WAVEGUIDE FILTERS

摘要

The invention refers to a waveguide filter (1) comprising a matching means (2) for matching the filter. The waveguide filter (1) comprises a housing (3) comprising a cavity (4) having a predetermined first volume. The matching means (2) is in the form of a volume element having a predetermined second volume being matched to the first volume forming a predetermined volume to volume ratio. The invention is characterised in that the matching means (2) is fitted into the cavity (4) in a fixed non-adjustable manner in relationship to the housing (3) The invention refers also to a method for manufacturing of such a waveguide filter.