Filter Helix Implementation in Traveling Wave Tube Tapers

Konferenz: GeMiC 2014 - German Microwave Conference
10.03.2014 - 12.03.2014 in Aachen, Germany

Tagungsband: GeMiC 2014

Seiten: 2Sprache: EnglischTyp: PDF

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Autoren:
Gehrmann, Elke; Gellersen, Frauke; Jacob, Arne F. (Institut fuer Hochfrequenztechnik, TU Hamburg-Harburg, 21073 Hamburg, Germany)

Inhalt:
A filter helix consisting of periodic pitch discontinuities can be implemented in the transmission line of a traveling wave tube (TWT) to act as a stopband filter for the second harmonic. This contribution investigates the possibility of integrating such filters in tube regions with tapered helix pitch. Simulation of an L-band TWT predicts increased output power for optimized filter design.