Title :
Slotted third-harmonic gyro-TWT amplifier experiment
Author :
Chong, C.K. ; McDermott, D.B. ; Luhmann, N.C., Jr.
Author_Institution :
Dept. of Appl. Sci., California Univ., Davis, CA, USA
fDate :
6/1/1996 12:00:00 AM
Abstract :
The first operation of a slotted third-harmonic gyrotron traveling-wave amplifier is reported. The low-magnetic-field moderate-voltage gyrotron amplifier´s 62-keV 2.5-A υ⊥ /υ||=1.2 axis-encircling electron beam was supplied by a gyroresonant RF accelerator. The 10-GHz 1.3-kG single-section slotted third-harmonic amplifier is stable and yielded 12.5 dB of small signal gain with a bandwidth of 2.5%. The experiment was performed as a scaled proof-of-principle test of the 95-GHz multisection slotted amplifier under development at CPI (formerly Varian)
Keywords :
gyrotrons; microwave power amplifiers; millimetre wave power amplifiers; travelling wave amplifiers; travelling wave tubes; 1.3 kG; 10 GHz; 12.5 dB; 2.5 A; 62 keV; 95 GHz; electron beam; gyroresonant RF accelerator; gyrotron traveling-wave amplifier; low-magnetic-field; moderate-voltage; multisection slotted amplifier; scaled proof-of-principle test; slotted third-harmonic gyro-TWT amplifier; Bandwidth; Cyclotrons; Electron beams; Frequency; Gain; Gyrotrons; High power amplifiers; Magnetic fields; Power generation; Radiofrequency amplifiers;
Journal_Title :
Plasma Science, IEEE Transactions on
