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AssigneeThe United States of America as represented by the Secretary of the Navy
InventorChristen Rauscher
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A waveguide filter with a signal input port at a first end and a signal output port at a second end includes a dielectric core of moldable material where the outer surface of its periphery has a metal layer with nonmetallized openings positioned at opposite ends of the filter to accommodate the input and output ports. The filter's periphery is configured to provide a cascade connection of a plurality of metal-bounded ridge-waveguide sections with interspersed metal-bounded evanescent-mode coupling regions. The filter can be joined through a manifold to realize a frequency-multiplexer, with the manifold containing a cascade connection of electrically short waveguide segments and quasi-lumped waveguide circuit components, such as irises. The filter and multiplexer are amenable to the application of cost-effective injection molding techniques to manufacture the dielectric core.
A waveguide filter with a signal input port at a first end and a signal output port at a second end, comprising:
A frequency multiplexer, comprising a plurality of channel filters with different passbands, wherein each said filter comprises a dielectric core of moldable material, said core including a periphery having an outer surface, wherein the outer surface includes a metal layer with nonmetallized openings therein positioned at said first and second ends of the filter for respectively accommodating said signal input and output ports and wherein said periphery is configured to provide a cascade connection of a plurality of metal-bounded ridge-waveguide sections with interspersed metal-bounded evanescent-mode coupling regions;
A frequency multiplexer as in 12, wherein the waveguide manifold further comprises a structural element selected from the group consisting of a ridge waveguide segment, an evanescent-mode-waveguide segment, and a quasi-lumped reactive waveguide component, and combinations thereof.
Dependencies are inferred from the claim text.