3D Meander Line Slow Wave Structure for W-band TWT

Socuellamos, Juan and Letizia, Rosa and Dionisio, Roberto and Paoloni, Claudio (2021) 3D Meander Line Slow Wave Structure for W-band TWT. In: 2020 IEEE 21st International Conference on Vacuum Electronics (IVEC) :. IEEE. ISBN 9781538682890

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Abstract

Planar meander lines have been recently studied in detail due to their favorable properties as slow wave structures for traveling wave tubes. However, the interaction of a cylindrical electron beam with this kind of structures is not efficient enough in order to achieve the output power levels required for space applications at W-band. A new design, suitable and optimized for the cylindrical beam geometry, is introduced in this work. Cold and large signal results are presented in the paper.