Initial experimental results of a new triplet harmonic-multiplying gyrotron amplifier (Gyrotriotron)

Author

Guo, H. ; Miao, Y.Y. ; Rodgers, J. ; Granatstein, V.L. ; Wu, R.S. ; Luo, J.R. ; Wu, D.S. ; Yin, Y.L. ; Miao, Y.H. ; Zhang, Y.S. ; Cai, Z.P. ; Zheng, L. ; Su, Y.N. ; Guo, W. ; Luan, Y.T. ; Ding, Y.G.

Author_Institution

Institutefor Res. in Electron. & Appl. Phys., Maryland Univ., College Park, MD, USA

fYear

2002

fDate

26-26 Sept. 2002

Firstpage

205

Lastpage

206

Abstract

A new triplet gyrotron amplifier, which we call gyrotriotron, has recently been developed. The device consists of a gyroTWT input stage to modulate the beam at S/sub 1/=1 cyclotron harmonic, a four-unit clustered-cavity as intermediate stage to bunch the beam at S/sub 2/=2 cyclotron harmonic and a gyro-TWT output stage to extract energy from the bunched beam at S/sub 3/=2 cyclotron harmonic. Electronic coupling between neighboring stages is realized through ballistic beam bunching in the radiation-free drift space similar to what happens in a gyroklystron. Because S/sub 3/ = S/sub 2/ = 2S/sub 1/, the device is a harmonic multiplying gyrotron amplifier with a scheme of 1-2-2. The clustered-cavity employed in the gyrotriotron is a group of TE/sub 03/ mode-selected cavities, which are closely adjacent and without any coupling between them.

Keywords

cavity resonators; gyrotrons; harmonics; millimetre wave power amplifiers; millimetre wave tubes; travelling wave tubes; 500 kW; Ka-band operation; ballistic beam bunching; beam modulation; bunched beam; cyclotron harmonic; four-unit clustered-cavity; gyro-TWT input stage; gyro-TWT output stage; gyrotriotron; harmonic multiplying gyrotron amplifier; mode selective clustered-cavity; triplet gyrotron amplifier; Bandwidth; Cyclotrons; Educational institutions; Gyrotrons; Klystrons; Optical coupling; Optical modulation; Physics; Power generation; Testing;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICIMW.2002.1076156

Filename

1076156