Title :
Experimental results from the MIT 140 GHz quasioptical gyro-TWT
Author :
Sirigiri, J.R. ; Shapiro, M.A. ; Temkin, R.J.
Author_Institution :
Plasma Sci. & Fusion Center, MIT, Cambridge, MA, USA
Abstract :
We present the latest experimental results from a novel 140 GHz quasioptical gyro-TWT at MIT. The gyro-TWT is designed to operate in a higher order HE/sub 06/ mode of a confocal waveguide to produce 100 kW at 140 GHz with a gain of 38 dB. Current experimental results have demonstrated a peak power of 30 kW at 140 GHz with a gain of 29 dB and an unsaturated 3 dB bandwidth of 2.0 GHz. The gyro-TWT interaction structure which is formed by a pair of confocal mirrors exhibits tremendous potential for high average power operation in the W-band and beyond.
Keywords :
gyrotrons; millimetre wave tubes; mirrors; travelling wave tubes; 100 kW; 140 GHz; 2.0 GHz; 29 dB; 30 kW; 38 dB; W-band operation; average power; confocal mirror pair; confocal waveguide; gain; gyro-TWT design; gyro-TWT interaction structure; higher order HE/sub 06/ mode operation; peak power; quasioptical gyro-TWT; unsaturated bandwidth; Bandwidth; Broadband amplifiers; Diffraction; Electron beams; Gain; High power amplifiers; Klystrons; Linearity; Mirrors; Power amplifiers;
Conference_Titel :
Infrared and Millimeter Waves, 2002. Conference Digest. Twenty Seventh International Conference on
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-7423-1
DOI :
10.1109/ICIMW.2002.1076171
