A SIMPLE ANALYSIS OF HELICAL SLOW-WAVE STRUCTURE LOADED BY DIELECTRIC EMBEDDED METAL SEGMENTS FOR WIDEBAND TRAVELING-WAVE TUBES | Zendy

R. Seshadri | Zendy; S. K. Ghosh | Zendy; A. Bhansiwal | Zendy; S. Kamath | Zendy; P. K. Jain | Zendy

Open Access

A SIMPLE ANALYSIS OF HELICAL SLOW-WAVE STRUCTURE LOADED BY DIELECTRIC EMBEDDED METAL SEGMENTS FOR WIDEBAND TRAVELING-WAVE TUBES

Author(s) -

R. Seshadri,

S. K. Ghosh,

A. Bhansiwal,

S. Kamath,

P. K. Jain

Publication year - 2010

Publication title -

progress in electromagnetics research b

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.208

H-Index - 47

ISSN - 1937-6472

DOI - 10.2528/pierb10031201

Subject(s) - wideband , simple (philosophy) , materials science , acoustics , traveling wave , dielectric , metal , traveling wave tube , physics , optics , optoelectronics , mathematical analysis , mathematics , amplifier , cmos , philosophy , epistemology , metallurgy

A simple fleld analysis was developed for helical slow- wave structure symmetrically supported by rectangular shaped discrete dielectric support rods partially embedded in the metal segments projecting radially inward from a metal envelope for wideband traveling-wave tubes. The tape helix model was used for the prediction of the dispersion relation and the interaction impedance characteristics. The closed form simplifled expressions are obtained by combining the tape model dispersion relation for free-space helix and the dielectric loading factor obtained for the loaded helix in the sheath model. The dispersion characteristics and the interaction impedance characteristics obtained by the present analysis were compared with other more

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