Title: Corrugated microwave horn

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Abstract: A corrugated microwave horn or the like is constructed by forming a plurality of thin, parallel, annular plates of conductive metal with a multiplicity of integral tabs spaced around the periphery of each plate. A thin flat sheet of flexible conductive metal is formed with a multiplicity of spaced parallel slots arranged in a multiplicity of longitudinal columns and transverse rows. One of the tabs on each of the annular plates is fitted through the slots in one of the longitudinal columns, and a wire is inserted through apertures in the tabs to lock the slotted sheet to the annular plates. The slotted sheet is then rolled around the peripheries of the plates to fit successive tabs through the successive longitudinal columns of slots, and additional wires are inserted through the apertures in successive tabs to lock the sheet to successive portions of the peripheries of the plates. To provide a continuous electrical connection between the rolled sheet and the peripheries of the annular plates, the entire assembly may be soldered together by simply coating the outer surface of the assembly with a paste solder and then heating it. The tabs may be formed on the inner peripheries rather than the outer peripheries of the plate members, and the slotted sheet formed of resilient metal so that it is biased against the inner peripheries of the plate members without the use of any wires or other longitudinal locking members.


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