A wave-beam interaction theory for folded-waveguide traveling wave tubes | Zendy

Hairong Yin | Zendy; Jin Xu | Zendy; Yu Ling-Na | Zendy; Gong Yu-bing | Zendy; Wei Yan-Yu | Zendy

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A wave-beam interaction theory for folded-waveguide traveling wave tubes

Author(s) -

Hairong Yin,

Jin Xu,

Yu Ling-Na,

Gong Yu-bing,

Wei Yan-Yu

Publication year - 2012

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.61.244106

Subject(s) - physics , beam (structure) , waveguide , optics , traveling wave tube , nonlinear system , power (physics) , mechanics , quantum mechanics , optoelectronics , amplifier , cmos

Based on velocity-modulating model, a nonlinear wave-beam interaction theory for folded-waveguide traveling wave tubes is developed. In this theory, the continuing beam is treated as discrete macro-particles with different initial phases. Then beam-wave interaction and energy exchange are analyzed at each crossing point between beam-tunnel and wave-tunnel. Compared with PIC result, the error of output power predicted by this model is within 10%, and the error of saturated length is within 15%. The results of this model are significant for designing folded-waveguide traveling wave tubes.

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