Study of helical slowwave structures with vaneloaded taking account of the radial thickness of the helix

zhang yong; mo yuan long; li jian qing; zhou xiao lan

Volume 15 Issue 10

Oct. 2003

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Article Navigation > High Power Laser and Particle Beams > 2003 > 15(10): 0-

yao zhibin, he baoping, zhang fengqi, et al. Development of measurement system for radiation effect on static random access memory based field programmable gate array[J]. High Power Laser and Particle Beams, 2009, 21.

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zhang yong, mo yuan long, li jian qing, et al. Study of helical slowwave structures with vaneloaded taking account of the radial thickness of the helix[J]. High Power Laser and Particle Beams, 2003, 15.

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Study of helical slowwave structures with vaneloaded taking account of the radial thickness of the helix

1.
Institute of High Energy Electronics,University of Electronics Science and Technology of China,Chengdu 610054,China

Publish Date: 2003-10-15

Abstract

Abstract

The vaneloaded helical slowwave structures is widely used in high power, broadband travelingwave tubes (TWT's). Taking the radial thickness of the helix into account, the tape helix model is suggested for the vaneloaded helical slowwave structures in this paper for the first time. By taking the discrete supports bars into some continuous dielectric tube regions, the dispersion equations and the expressions of interaction impedance are obtained. Besides, the radial propagation constant of every layer in the dielectricloaded region is differentiated. Some helical slowwave structures of TWT are calculated by the derived equations, and the calculated results accord with measured values very well. Compared with measured values, the calculated results of the model considering the r
- tape helix,
- vane,
- dispersion characteristics,
- interaction impedance

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