Effect of helix thickness on high-frequency characteristics of helical slow-wave structure

Zhang Qingchun; Fu Chengfang; Zhao Bo

Volume 25 Issue 04

Mar. 2013

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(04): 945-949

gao qiwen, li shaohui. Explosion dynamics of heteroclusters in ultraintense femtosecond laser field[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

Zhang Qingchun, Fu Chengfang, Zhao Bo, et al. Effect of helix thickness on high-frequency characteristics of helical slow-wave structure[J]. High Power Laser and Particle Beams, 2013, 25: 945-949.

gao qiwen, li shaohui. Explosion dynamics of heteroclusters in ultraintense femtosecond laser field[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

Zhang Qingchun, Fu Chengfang, Zhao Bo, et al. Effect of helix thickness on high-frequency characteristics of helical slow-wave structure[J]. High Power Laser and Particle Beams, 2013, 25: 945-949.

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Effect of helix thickness on high-frequency characteristics of helical slow-wave structure

1.
Faculty of Electronic and Electrical Engineering,Huaiyin Institute of Technology,Huai’an 223003,China

Received Date: 2012-04-22
Rev Recd Date: 2012-10-16
Publish Date: 2013-03-09

Abstract

Abstract

Based on the helical coordinate system, using the approximate field matching method, we studied the high-frequency characteristics of thicker helical slow wave structure, obtained the dispersion equation, and analyzed the influence of the thickness of the helix slow wave on the phase velocity. The results show that the dispersion curve of the slow-wave structure becomes flat with the increase of helix thickness, and also the dispersion becomes weaker, the bandwidth broadens. The calculation results of our method agree well with the results obtained by CST simulation, which proves that the theoretical method has a higher accuracy than the Hooks model in analysis of the thicker helix.
- thicker helix,
- dispersion characteristic,
- slow-wave structure,
- travelling-wave tube

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