Wang Xuenan, Wei Yanyu, Wei Wanghe. High-frequency characteristics of double rectangular helix slow-wave structure of TWT with sheet electron beam[J]. High Power Laser and Particle Beams, 2016, 28: 093005. doi: 10.11884/HPLPB201628.160025
Citation:
Wang Xuenan, Wei Yanyu, Wei Wanghe. High-frequency characteristics of double rectangular helix slow-wave structure of TWT with sheet electron beam[J]. High Power Laser and Particle Beams, 2016, 28: 093005. doi: 10.11884/HPLPB201628.160025
Wang Xuenan, Wei Yanyu, Wei Wanghe. High-frequency characteristics of double rectangular helix slow-wave structure of TWT with sheet electron beam[J]. High Power Laser and Particle Beams, 2016, 28: 093005. doi: 10.11884/HPLPB201628.160025
Citation:
Wang Xuenan, Wei Yanyu, Wei Wanghe. High-frequency characteristics of double rectangular helix slow-wave structure of TWT with sheet electron beam[J]. High Power Laser and Particle Beams, 2016, 28: 093005. doi: 10.11884/HPLPB201628.160025
Aviation Engineering Institute,Civil Aviation Flight University of China,Guanghan 618300,China;
2.
National Key Laboratory of Science and Technology on Vacuum Electronics,School of Physical Electronics,University of Electronic Science and Technology of China,Chengdu 610054,China
A new slow-wave structure with two rectangular helixes is described in this paper. The high-frequency characteristics including dispersion characteristic and coupling impedance are calculated using 3D electromagnetic simulation software. The result shows that, compared with single rectangular helix SWS, double rectangular helix SWS is capable of higher coupling impedance in the same position with little dispersion characteristic change. Meanwhile, sheet electron beam can be set in the region containing these positions to further improve the output power. Key words: double rectangular helix slow-wave structure; micro-electro-mechanical system technology; sheet
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