A TE13 Mode Converter for High-Order Mode Gyrotron-Traveling-Wave Tubes

A TE13 Mode Converter for High-Order Mode Gyrotron-Traveling-Wave Tubes

A methodology to generate a circular TE 13 mode for the operation of high-order mode (HOM) gyrotron-traveling-wave tubes is presented in this paper. A rectangular TE 10 mode is efficiently converted into a circular TE 13 mode using Y-type power dividers. Symmetric curved lossy dielectrics and dielec...

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Veröffentlicht in:IEEE transactions on electron devices 2016-01, Vol.63 (1), p.486-490
Hauptverfasser: Liu, Guo, Yan, Ran, Luo, Yong, Wang, Shafei
Format: Artikel
Sprache:eng
Schlagworte:
Bandwidth
Couplings
Cutoff frequency
Dielectrics
Magnetic moments
Oscillators
Power dividers
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Zusammenfassung:A methodology to generate a circular TE 13 mode for the operation of high-order mode (HOM) gyrotron-traveling-wave tubes is presented in this paper. A rectangular TE 10 mode is efficiently converted into a circular TE 13 mode using Y-type power dividers. Symmetric curved lossy dielectrics and dielectric rings are, respectively, positioned to suppress the potential coupling TE 32 and TE 71 modes according to their electric and magnetic field distribution properties. An HOM converter without dielectrics loaded was designed, constructed, and cold tested. Back-to-back transmission measurements exhibit good agreement with the results of computer simulations.
ISSN:0018-9383
1557-9646
DOI:10.1109/TED.2015.2499840