Development and Demonstration of a Ka-Band Gyrotron Traveling-Wave Tube

The design and experiment of a pulsed Ka-band TE 01 -mode gyrotron traveling-wave tube are presented. This tube was designed to use the fundamental cyclotron resonance interaction with TE 01 cylinder waveguide mode. Backward-wave oscillations of various origins were suppressed by ceramic loading tec...

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Bibliographic Details
Published inIEEE transactions on plasma science Vol. 46; no. 6; pp. 1975 - 1983
Main Authors Liu, Gaofeng, Xue, Qianzhong, Zhang, Shan, Gu, Wei, Wang, Xuewei, Zhao, Guohui, Zhao, Ding, Geng, Zhihui, Xu, Shou-Xi
Format Journal Article
LanguageEnglish
Published IEEE 01.06.2018
Subjects
Bandwidth
Ceramics
Couplers
Electron guns
Gain
Gyrotron traveling-wave tube (TWT)
Gyrotrons
Ka-band
lossy ceramic
Oscillators
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Summary:The design and experiment of a pulsed Ka-band TE 01 -mode gyrotron traveling-wave tube are presented. This tube was designed to use the fundamental cyclotron resonance interaction with TE 01 cylinder waveguide mode. Backward-wave oscillations of various origins were suppressed by ceramic loading technology. With the electron beam voltage of 66 kV and a beam current of 11 A, a saturated peak power of 110 kW was measured at 33.9 GHz, corresponding to a saturated gain of 34.4 dB, with a −3-dB bandwidth of 1.75 GHz.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2018.2835843