Title :
Research progress of the harmonic multiplying gyrotron traveling wave amplifier at Ka band in IECAS
Author :
Luo, Jirun ; Yuan, Guangjiang ; Zhang, Yansheng ; Guo, Wei ; Zhu, Min ; Jiao, Chongqing ; Li, Yin ; Zhang, Tao ; Sun, Haiyan ; Luan, Yuantao ; Zhang, Chi ; Cui, Jian
Author_Institution :
Inst. of Electron., Chinese Acad. of Sci., Beijing
Abstract :
In this article, a new method is utilized for enhacing output power and improving bandwidth. The works related to harmonic multiplying gyrotron traveling wave amplifier were ever reported by us in IRMMW2006 and IVEC2007, which showed that there were some contradictions between output power and band-width. The output frequency bandwidth of more 500 MHz can be reached at output pulse power of only 10.07~12.88kW. Output pulse power can be increased to 25 kW with very narrow bandwidth. Because of using harmonic multiplying, the resonant circuit is usually used to increase the coupling between fundamental and harmonic. However, it will decrease operating bandwidth.
Keywords :
gyrotrons; microwave amplifiers; millimetre wave amplifiers; travelling wave amplifiers; IECAS; Ka band; bandwidth 500 MHz; harmonic multiplying gyrotron traveling wave amplifier; output frequency bandwidth; output pulse power; power 25 kW; resonant circuit; Bandwidth; Coupling circuits; Frequency response; Gyrotrons; Optical reflection; Power amplifiers; Power generation; Power harmonic filters; Power system harmonics; Pulse amplifiers;
Conference_Titel :
Vacuum Electronics Conference, 2008. IVEC 2008. IEEE International
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4244-1715-5
DOI :
10.1109/IVELEC.2008.4556432
