Design and Analysis of Staggered Double Vane Structure with Bragg Resonators for 200 GHz TWT

This research introduces a methodology for designing a staggered double-vane (SDV) traveling-wave tube (TW7) optimized for efficient operation at 200 GHZ. The two- stage structure ejg'ectively suppresses backward beam-wave interaction and generates a stable output signaL By conducting particle-in-cell simulation, it is observed that the proposed structure generates ejg'ective beam-wave interaction and has a gain of 33. 51 dB at 20 ns.