Preliminary design of a stable, second harmonic, 1MW, Ku-band gyrotron traveling-wave amplifier

Author

Jiao, Chong-Qing

Author_Institution

Beijing Key Lab. of High Voltage & EMC, North China Electr. Power Univ., Beijing

fYear

2008

fDate

15-19 Sept. 2008

Firstpage

1

Lastpage

2

Abstract

The preliminary design results of a 1 MW, Ku-band gyrotron traveling wave amplifier (gyro-TWA) are presented. Operating at the second cyclotron harmonic of the TE₁₁ mode, the amplifier characterizes good stability. No distributed losses or servers are required, which could potentially allow the amplifier to be operated at high average power. Large signal simulation shows that the amplifier can generate a saturated peak power of 1.06 MW with an efficiency of 26.6%, a gain of 31 dB, and a 3 dB bandwidth of about 1 GHz at 16.95 GHz when driven by a 100 kV, 40 A electron beam with 5% axial velocity spread.

Keywords

gyrotrons; stability; travelling wave amplifiers; TE₁₁ mode; current 40 A; gyrotron traveling wave amplifier; second cyclotron harmonic; signal simulation; stability; voltage 100 kV; Cyclotrons; Distributed amplifiers; Gain; Gyrotrons; High power amplifiers; Power amplifiers; Power generation; Signal generators; Stability; Tellurium;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICIMW.2008.4665820

Filename

4665820