Open AccessInfluence of distributed wall loss on stability of gyrotron traveling wave amplifier
Author(s) -
Haiyan Sun,
Jiao Chong-Qing,
Jirun Luo
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.238
Subject(s) - gyrotron , bandwidth (computing) , lossy compression , amplifier , physics , attenuation , dispersion relation , mode (computer interface) , optics , power (physics) , telecommunications , computer science , quantum mechanics , artificial intelligence , operating system
Based on the dispersion equation of electromagnetic mode and the nolinear theory of gyrotron traveling wave amplifier (gyro-TWA), the influence of the thickness of the lossy layer on beam-wave interaction in the gyro-TWA is studied. The simulation results show that large attenuation for competing mode TE21 can be realized while that of operating mode is small by appropriately choosing the thickness and conductivity of the lossy layer. The bandwidth decreases with the increase of the thickness, but the output power of the middle of the bandwidth increases and becomes more smooth. This is useful for improving the stability of gyro-TWA.