High-frequency characteristics of half rectangular ring helix slow wave structure

Xia Wei; Wei Wanghe; Wei Yanyu; Lu Min

doi:10.11884/HPLPB202032.190359

Volume 32 Issue 4

Mar. 2020

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Xia Wei, Wei Wanghe, Wei Yanyu, et al. High-frequency characteristics of half rectangular ring helix slow wave structure[J]. High Power Laser and Particle Beams, 2020, 32: 043002. doi: 10.11884/HPLPB202032.190359

Citation:

Xia Wei, Wei Wanghe, Wei Yanyu, et al. High-frequency characteristics of half rectangular ring helix slow wave structure[J]. High Power Laser and Particle Beams, 2020, 32: 043002. doi: 10.11884/HPLPB202032.190359

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High-frequency characteristics of half rectangular ring helix slow wave structure

doi: 10.11884/HPLPB202032.190359

Xia Wei^1
,,
Wei Wanghe^{1
,
,},
Wei Yanyu²,
Lu Min¹

1.
School of Science, Jiangxi University of Science and Technology, Ganzhou 341000, China
2.
School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China

Received Date: 2019-09-16
Rev Recd Date: 2019-12-27
Publish Date: 2020-03-06

Abstract

Abstract

A novel half rectangular-ring helix slow-wave structure (SWS) is proposed for the design of wide bandwidth and high power traveling-wave tubes. The numerical calculation by 3D electromagnetic simulation software HFSS shows that proper dispersion and coupling impedance can be obtained by reasonably setting the geometrical parameters of the SWS. Meanwhile, compared with the half circular ring helix slow wave structure, slight variation in dispersion and remarkable improvement in coupling impedance have been observed in the numerical calculation of the half rectangular ring helix SWS. The half rectangular-ring helix slow-wave structure has the combined advantages of flatten dispersion, high interaction impedance, easy fabrication and convenience for interaction with sheet beam.

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References(12)

References

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