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A novel slow wave structure (SWS) design is proposed, incorporating a rectangular cavity to enhance output efficiency in G-band applications. Through the field induction, this configuration significantly improves beam-wave interaction efficiency while maintaining a straightforward geometry suitable for precision machining. Particle-in-cell (PIC) simulations demonstrate that the rectangular cavity SWS (RC-SWS) achieves superior output performance compared to conventional designs of equivalent length. This performance improvement is attained without introducing complex geometrical features that would compromise fabrication feasibility.

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A Staggered Double Vane Traveling Wave Tube Incorporating a Cavity

  • 会议论文

  • 发表日期：

    2026年

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  • Dongxing Zhou,
  • Wenxin Liu,
  • Ang Jiao,
  • Hongjing Li

摘要

A novel slow wave structure (SWS) design is proposed, incorporating a rectangular cavity to enhance output efficiency in G-band applications. Through the field induction, this configuration significantly improves beam-wave interaction efficiency while maintaining a straightforward geometry suitable for precision machining. Particle-in-cell (PIC) simulations demonstrate that the rectangular cavity SWS (RC-SWS) achieves superior output performance compared to conventional designs of equivalent length. This performance improvement is attained without introducing complex geometrical features that would compromise fabrication feasibility.