Waveguide filter with upper, structured metallic layer and striplines on substrate, also includes surface-mounted-device on top of substrate

摘要

The SMD component (FB) is fitted on top of the substrate (S). A sidewall of the waveguide filter is formed by the structured metallic layer (TM) of the substrate. Remaining side walls of the waveguide are formed by the component (FB). The waveguide filter includes input- and output coupling locations for electromagnetic waves. These waves propagate in the striplines (ML1, ML2) and are coupled into- and out from the waveguide filter.