BEAM-ABSENT ANALYSIS OF DISC-LOADED-COAXIAL WAVEGUIDE FOR APPLICATION IN GYRO-TWT (PART-1) | Zendy

Vishal Kesari | Zendy

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BEAM-ABSENT ANALYSIS OF DISC-LOADED-COAXIAL WAVEGUIDE FOR APPLICATION IN GYRO-TWT (PART-1)

Author(s) -

Vishal Kesari

Publication year - 2010

Publication title -

electromagnetic waves

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 89

eISSN - 1559-8985

pISSN - 1070-4698

DOI - 10.2528/pier10071305

Subject(s) - coaxial , optics , traveling wave tube , wideband , bandwidth (computing) , waveguide , beam (structure) , dispersion relation , physics , engineering , electrical engineering , amplifier , telecommunications

The earlier developed combined beam-absent analysis of the disc-loaded-coaxial waveguide in two-conflgurations (part-1) has shown promise for wideband gyro-traveling-wave tube (gyro-TWT) if the conflgurations are used as interaction structure. In the present paper, the beam-present dispersion relation and small-signal gain equation in Pierce's format for the disc-loaded-coaxial waveguide were developed. A broadening of the device bandwidth was presented by disc-loading the coaxial waveguide interaction structure of a gyro-TWT with a comparison against the circular cylindrical waveguide, coaxial waveguide, and disc-loaded circular waveguide in their respective gain- frequency responses obtained by using a numerical computer code on the basis of the present beam-present analysis.

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