High-frequency characteristics of double rectangular helix slow-wave structure of TWT with sheet electron beam

Wang Xuenan; Wei Yanyu; Wei Wanghe

doi:10.11884/HPLPB201628.160025

Volume 28 Issue 09

Aug. 2016

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Article Navigation > High Power Laser and Particle Beams > 2016 > 28(09): 093005

Shi Yiping, Yi Chaolong, Fan Yajun, et al. Design and experiments on a kind of high-power coplanar-feed impulse radiating antenna[J]. High Power Laser and Particle Beams, 2016, 28: 043001. doi: 10.11884/HPLPB201628.123001

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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

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High-frequency characteristics of double rectangular helix slow-wave structure of TWT with sheet electron beam

doi: 10.11884/HPLPB201628.160025

1.
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

Received Date: 2016-01-12
Rev Recd Date: 2016-03-15
Publish Date: 2016-09-15

Abstract

Abstract

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
- electron beam,
- dispersion characteristic,
- coupling impedance,

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