Ka-Band Gyrotron Traveling-Wave Tubes With the Highest Continuous-Wave and Average Power

The results of experimental investigation of two Ka-band gyrotron traveling-wave tube (gyro-TWT) amplifiers with helically corrugated waveguides are presented. The first tube produces pulsed output power of 130-160 kW within the frequency range of 33.1-35.5 GHz and is capable of operating with a 10%...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on electron devices 2014-12, Vol.61 (12), p.4264-4267
Main Authors: Samsonov, Sergey V., Levitan, Boris A., Murzin, Vladislav N., Gachev, Igor G., Denisov, Gregory G., Bogdashov, Alexander A., Mishakin, Sergey V., Fiks, Alexander S., Soluyanova, Elena A., Tai, Evgeny M., Dominyuk, Yaroslav V.
Format: Article
Language:English
Subjects:
Bandwidth
Cathodes
Electron tubes
Frequency measurement
Gyro-amplifiers
gyrotron traveling-wave tube (gyro-TWT)
Gyrotrons
high-power amplifiers
Oscillators
Power generation
Traveling-wave tubes
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The results of experimental investigation of two Ka-band gyrotron traveling-wave tube (gyro-TWT) amplifiers with helically corrugated waveguides are presented. The first tube produces pulsed output power of 130-160 kW within the frequency range of 33.1-35.5 GHz and is capable of operating with a 10% duty factor. Reliability of its major components in the high average power operation regime (about 10 kW) was proven in a continuous-wave (CW) experiment. The second gyro-TWT amplifier delivered CW power of up to 7.7 kW with -3-dB bandwidth of 2.6 GHz and -1-dB bandwidth of 2.1 GHz. Effective implementation of single-stage depressed collectors (to the best of our knowledge, for the first time for gyro-TWTs) enabled the electron efficiencies as high as 36% for the pulsed tube and 33% for the CW tube to be achieved at operation at the second cyclotron harmonic.
ISSN:0018-9383
1557-9646
DOI:10.1109/TED.2014.2364623