Title :
A wideband 140 GHz, 1 kW confocal gyro-traveling wave amplifier
Author :
Joye, Colin D. ; Shapiro, Michael A. ; Sirigiri, Jagadishwar R. ; Temkin, Richard J.
Author_Institution :
Massachusetts Inst. of Technol., Cambridge, MA
Abstract :
The experimental results of a zero-drive stable, short pulse 140 GHz gyro-traveling wave amplifier are presented. The amplifier has achieved a linear gain of 34 dB, a saturated bandwidth of over 1.5 GHz, and an output power of over 820 W peak at a beam voltage of 38 kV, beam current of 2.7 A, and beam pitch factor of 0.6. The gyro-TWT operates in the HE(0,6) mode of a quasi-optical confocal waveguide.
Keywords :
gyrotrons; travelling wave amplifiers; wideband amplifiers; confocal gyro-traveling wave amplifier; current 2.7 A; frequency 140 GHz; power 1 kW; quasi-optical confocal waveguide; voltage 38 kV; Apertures; Bandwidth; Biomedical measurements; Broadband amplifiers; Coupling circuits; Gain; Mirrors; Power amplifiers; Power generation; Pulse amplifiers;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on
Conference_Location :
Pasadena, CA
Print_ISBN :
978-1-4244-2119-0
Electronic_ISBN :
978-1-4244-2120-6
DOI :
10.1109/ICIMW.2008.4665617
