强激光与粒子束2025，Vol.37Issue(12)：19-25,7.DOI:10.11884/HPLPB202537.250160
基于H面功率合成的双电子注折叠波导行波管
W-band folded-waveguide traveling-wave tube with dual electron beams and H-plane power combining
摘要
Abstract
[Background]Traveling-wave tubes(TWTs)are widely applied in radar,imaging,and military systems owing to their excellent amplification characteristics.Miniaturization and integration are critical to the future of TWTs,with multi-channel slow-wave structures(SWSs)forming the foundation for their realization in high-power vacuum electronic devices.[Purpose]To provide design insights for multi-channel TWTs and simultaneously enhance their output power,a W-band folded-waveguide TWT with dual electron beams and H-plane power combining was proposed.[Methods]Three-dimensional electromagnetic simulations in CST were conducted to verify the high-frequency characteristics,electric field distribution,and amplification performance of the proposed SWS,thereby confirming the validity of the design.[Results]Results indicate that the designed TWT achieves a transmission bandwidth of 10 GHz.With an electron beam voltage of 17.9 kV and a current of 0.35 A,the output power reaches 450 W at 94 GHz,corresponding to an efficiency of 7.18%and a gain of 23.5 dB.Moreover,under fixed beam voltage and current,the TWT delivers over 200 W output power across 91-99 GHz,with a 3 dB bandwidth of 91-98.5 GHz.The particle voltage distribution after modulation further validates the mode analysis.[Conclusions]These results demonstrate the feasibility of compact dual-beam power-combining structures and provide useful guidance for the design of future multi-channel TWTs.关键词
双电子注/折叠波导/慢波结构/功率合成/注波互作用/W波段Key words
double electron beam/folded waveguide/slow-wave structure/power combining/beam-wave interaction/w-band分类
核科学引用本文复制引用
王环宇,段景瑞,王战亮,唐海宸,路志刚,王少萌,巩华荣,宫玉彬..基于H面功率合成的双电子注折叠波导行波管[J].强激光与粒子束,2025,37(12):19-25,7.基金项目
National Key Research and Development Program of China(2022YFF0707602) （2022YFF0707602）
National Natural Science Foundation of China(62471097,62471115,62471101) （62471097,62471115,62471101）
National Natural Science Foundation of Sichuan(2025ZNSFSC0537) （2025ZNSFSC0537）
