Studies on a Microfabricated Traveling-Wave Tube With Planar Microstrip Slow-Wave Structure

Nikita M. Ryskin,Andrey Starodubov,Roman A. Torgashov,Anton M. Pavlov,Ilya O. Kozhevnikov,Alexey A. Serdobintsev,Andrey G. Rozhnev,Giacomo Ulisse,Viktor Krozer

2021 46TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER AND TERAHERTZ WAVES (IRMMW-THZ)（2021）

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摘要

Planar microstrip slow-wave structures (SWS) for a miniaturized low-voltage traveling-wave tube (TWT) in V-, W-, and D-band are designed, fabricated and tested. The low-cost and flexible technology for fabrication of such structures based on magnetron sputtering and laser ablation is developed. The wideband input/output couplers providing low reflection loss are designed and simulated. 3-D particle-in-cell (PIC) modeling of beam-wave interaction in the V-band planar TWT predicts over 20 W saturated power.

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关键词

microfabricated traveling-wave tube,planar microstrip slow-wave structure,miniaturized low-voltage traveling-wave tube,beam-wave interaction,V-band planar TWT,planar microstrip SWS,W-band TWT,D-band TWT,magnetron sputtering,laser ablation,wideband input-output couplers,reflection loss,3D particle-in-cell modeling,3D PIC modeling

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