Design and development of a high performance gyro-TWT-amplifier operating at a cyclotron harmonic frequency

Author

Guo, H. ; Carmel, Y. ; Levush, B. ; Antonsen, T.M., Jr. ; Cai, S. ; Chen, L. ; Granatstein, V.L.

Author_Institution

Lab. for Plasma Res., Maryland Univ., College Park, MD, USA

fYear

1991

fDate

8-11 Dec. 1991

Firstpage

783

Lastpage

785

Abstract

A 35 GHz gyro-TWT (traveling wave tube) amplifier designed for operation at the second harmonic of the cyclotron frequency is presented. It is expected that 200 kW peak output, 15% bandwidth, 40 dB saturated gain and efficiency of 25% can be obtained. The design may be extended to 94 GHz operation at the fourth cyclotron harmonic. These harmonic gyrotron amplifiers will operate at a magnetic field strength which is compatible with modern permanent-magnet technology.<>

Keywords

gyrotrons; harmonics; microwave amplifiers; travelling-wave-tubes; 200 kW; 25 percent; 35 GHz; 40 dB; 94 GHz; bandwidth; cyclotron harmonic frequency; fourth cyclotron harmonic; gyro-TWT-amplifier; harmonic gyrotron amplifiers; magnetic field strength; peak output; permanent-magnet technology; saturated gain; second harmonic; Attenuators; Broadband amplifiers; Cyclotrons; Electron beams; Feedback circuits; Frequency; Gyrotrons; Laboratories; Optical reflection; Power system harmonics;

fLanguage

English

Publisher

ieee

Conference_Titel

Electron Devices Meeting, 1991. IEDM '91. Technical Digest., International

Conference_Location

Washington, DC, USA

ISSN

0163-1918

Print_ISBN

0-7803-0243-5

Type

conf

DOI

10.1109/IEDM.1991.235307

Filename

235307