Development and testing of a high-average power, 94-GHz gyroklystron

Author

Danly, Bruce G. ; Blank, Monica ; Calame, J.P. ; Levush, Baruch ; Nguyen, Khanh T. ; Pershing, Dean E. ; Parker, R.K. ; Felch, Kevin L. ; James, B.G. ; Borchard, P. ; Cahalan, P. ; Chu, T.S. ; Jory, H.R. ; Hargreaves, Thomas A. ; True, Richard B. ; Lawson

Author_Institution

Div. of Electron. Sci. & Technol., Naval Res. Lab., Washington, DC, USA

Volume

28

Issue

3

fYear

2000

fDate

6/1/2000 12:00:00 AM

Firstpage

713

Lastpage

726

Abstract

The development of a 10-kW average power, 94-GHz gyroklystron amplifier is described. This average power was obtained with 11% radio frequency (RF) duty factor and 92-kW peak power in the TE₀₁ circular cavity mode. The instantaneous bandwidth was 420 MHz, and the efficiency was 33.5%. Low-duty-factor testing also yielded a peak power of as much as 115 kW with 600-MHz instantaneous bandwidth. This development effort was carried out over the past three years and represents record average power performance in an amplifier at this frequency.

Keywords

gyrotrons; klystrons; millimetre wave amplifiers; 10 kW; 115 kW; 33.5 percent; 420 MHz; 600 MHz; 92 kW; 94 GHz; RF duty factor; TE₀₁ circular cavity mode; W band; average power performance; cavity electromechanical design; drift tube; efficiency; field profile; gyroklystron amplifier; high-average power gyroklystron; instantaneous bandwidth; low-duty-factor testing; millimetre wave amplifier; network analyser; output power; peak power; radio frequency duty factor; Gyrotrons; Klystrons; Laboratories; Millimeter wave radar; Millimeter wave technology; Nuclear magnetic resonance; Oscillators; Radio frequency; Testing; Vacuum technology;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.887710

Filename

887710