TY - GEN
T1 - Optimized Design and Stability Analysis of a W-Band Traveling-Wave Tube
AU - Hou, Yitao
AU - Wang, Wenbo
AU - Ruan, Cunjun
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - This paper aims to enhance the engineering feasibility of a high-power, wide-band W-band traveling-wave tube (TWT). By re-optimizing the interaction system based on a dual-beam staggered double-vane (SDV) slow-wave structure (SWS), the device is enabled to operate stably at a significantly reduced electron beam voltage of 21.5 kV and a total current of 2*0.09A. This optimization is intended to lower the design complexity and technical requirements for the electron gun and its associated power supply. Particle-in-Cell (PIC) simulation results demonstrate that, under these new operating parameters, the TWT can still deliver a saturated output power exceeding 220 W over the 83-105 GHz frequency range, with an improved electronic efficiency compared to the original design. Critically, a rigorous stability analysis of the optimized interaction system was performed, confirming its capability to effectively suppress self-excited oscillations.
AB - This paper aims to enhance the engineering feasibility of a high-power, wide-band W-band traveling-wave tube (TWT). By re-optimizing the interaction system based on a dual-beam staggered double-vane (SDV) slow-wave structure (SWS), the device is enabled to operate stably at a significantly reduced electron beam voltage of 21.5 kV and a total current of 2*0.09A. This optimization is intended to lower the design complexity and technical requirements for the electron gun and its associated power supply. Particle-in-Cell (PIC) simulation results demonstrate that, under these new operating parameters, the TWT can still deliver a saturated output power exceeding 220 W over the 83-105 GHz frequency range, with an improved electronic efficiency compared to the original design. Critically, a rigorous stability analysis of the optimized interaction system was performed, confirming its capability to effectively suppress self-excited oscillations.
KW - stability analysis
KW - staggered double-vane
KW - Traveling-wave tube
KW - W-band
UR - https://www.scopus.com/pages/publications/105034606414
U2 - 10.1109/CSRSWTC67757.2025.11384017
DO - 10.1109/CSRSWTC67757.2025.11384017
M3 - 会议稿件
AN - SCOPUS:105034606414
T3 - Proceedings - 2025 Cross Strait Radio Science and Wireless Technology Conference, CSRSWTC 2025
BT - Proceedings - 2025 Cross Strait Radio Science and Wireless Technology Conference, CSRSWTC 2025
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2025 Cross Strait Radio Science and Wireless Technology Conference, CSRSWTC 2025
Y2 - 14 November 2025 through 16 November 2025
ER -