NDLI: Effect of helical slow-wave structure parameter variations on TWT cold-test characteristics

Content Provider	IEEE Xplore Digital Library
Author	Li Shi Liu Wei Su Xiao-bao Yin He-jun
Copyright Year	2004
Description	Author affiliation: Inst. of Electron., Chinese Acad. of Sci., Beijing, China (Li Shi; Liu Wei; Su Xiao-bao; Yin He-jun)
Abstract	In this paper, the quasi-periodic boundary conditions in the computer code MAFIA is used to determine the effect on dispersion and on-axis interaction impedance of helical slow-wave structure and the finite element method software-ANSYS is used to simulate the helix pressure distortion. The result is that, with the variations of axial width and height of the helical tape, only a slight effect in the phase velocity, but more effect in the interaction impedance. There is a best point on both axial width and height of the helical tape for the interaction impedance. Both dispersion and on-axis interaction impedance are increased with helix deformation, in which the radial relative deformation is less then 1%. While radial relative deformation is more then 1%, the on-axis interaction impedance is decreased.
Starting Page	393
Ending Page	395
File Size	145483
Page Count	3
File Format	PDF
ISBN	0780384377
DOI	10.1109/IVESC.2004.1414289
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-09-06
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Computational modeling Circuit simulation Computer simulation Resonant frequency Dielectric measurements Boundary conditions Frequency measurement Impedance Finite element methods Dispersion
Content Type	Text
Resource Type	Article

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