Design and Simulation of a V Band High-power TWT with Rectangular-ring Vertex Double-bar SWS

A high power V-band traveling wave tube (TWT) amplifier is designed and simulated based on the rectangular-ring vertex double-bar (RRVDB) slow-wave structure (SWS). The particle-in-cell simulation shows that, at beam voltage of 19.3 KV and beam current of 200 mA, the maximum output power of 388 W can be obtained by the V band RRVDB TWT. The maximum electronic efficiency and the peak gain can reach 10.05% and 38.9 dB, respectively. The instantaneous 3 dB bandwidth can reach 12 GHz.