Spinner Gmbh Elektrotechnische Fabrik

Hans Pinzel

Franz Xaver Pitschi

Manfred Lang

Werner Appel

A bandpass filter, includes a series of waveguide resonators positioned along a common longitudinal axis so as to define at least a first resonator and a last resonator, whereby adjacent resonators are mechanically linked to one another by a common coupling plate of sheet metal member which is formed with coupling slots for electrically coupling the resonators, with the first and last resonators each being closed by an end plate of sheet metal. Each resonator is formed from a longitudinally welded sheet metal, and the end plates and the common coupling plate are each formed with circumferentially spaced tabs which are bent so as to extend along the adjoining waveguide, whereby the tabs are welded to the waveguide, and the joints between the end plates and the common coupling plate, on the one hand, and the adjacent waveguides, on the other hand, are soldered

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Bruckmühl, Germany

Hans Pinzel