Design parameters of a high-efficiency 1.7-GHz gyropeniotron amplifier

Author

Ganguly, A.K. ; Ahn, Saeyoung ; Zaidman, Ernest G. ; Gilmour, A.S., Jr.

Author_Institution

US Naval Res. Lab., Washington, DC, USA

Volume

38

Issue

10

fYear

1991

fDate

10/1/1991 12:00:00 AM

Firstpage

2229

Lastpage

2233

Abstract

The feasibility of the gyropeniotron amplifier as a high-efficiency, high-power RF source to act as driver for accelerator in the 0.8-1.7-GHz frequency range is discussed. The klystrode is difficult to operate in this frequency range. Design parameters are given for a 1.7-GHz gyropeniotron operating with an axis-encircling beam (100 keV, 10 A) in a magnetron-type slotted waveguide. The external magnetic field required is 326 G. The calculated efficiency for second cyclotron harmonic operation is 78% with a cold beam and 66% with a beam having 2% axial velocity spread and 5% guiding center spread. The depressed collector technique can easily be applied to enhance the efficiency since the spent beam in a gyropeniotron has little velocity spread

Keywords

gyrotrons; microwave amplifiers; modelling; ultra-high-frequency tubes; 0.8 to 1.7 GHz; 10 A; 100 keV; 326 G; 66 percent; 78 percent; accelerator driver; axis-encircling beam; depressed collector technique; gyropeniotron amplifier; high-efficiency; high-power RF source; nonlinear modelling; saturation efficiency; second cyclotron harmonic operation; Cyclotrons; Driver circuits; Electrons; High power amplifiers; Magnetic fields; Oscillators; Power amplifiers; Power generation; Radio frequency; Radiofrequency amplifiers;

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/16.88503

Filename

88503