Operation of a wideband 140 GHz, 1 kW confocal gyro-traveling wave amplifier

Author

Joye, Colin D. ; Shapiro, Michael A. ; Sirigiri, Jagadishwar R. ; Temkin, Richard J. ; Torrezan, Antonio C.

Author_Institution

Plasma Sci. & Fusion Center, Massachusetts Inst. of Technol., Cambridge, MA

fYear

2008

fDate

22-24 April 2008

Firstpage

89

Lastpage

90

Abstract

The experimental results of a zero-drive stable, short pulse 140 GHz gyro-traveling wave tube amplifier are presented. The amplifier has achieved a linear gain of 34dB, a saturated bandwidth of over 1.5GHz, and a peak output power up to 800W at a beam voltage of 37kV, beam current of 2.9A, and beam pitch factor of 0.7. The gyro-TWT operates in the HE(0,6) mode of a quasi-optical confocal waveguide.

Keywords

gyrotrons; travelling wave amplifiers; travelling wave tubes; wideband amplifiers; beam current; beam pitch factor; beam voltage; confocal gyrotraveling wave amplifier; current 2.9 A; frequency 1.5 GHz; frequency 140 GHz; gain 34 dB; gyro-traveling wave tube amplifier; quasioptical confocal waveguide; saturated bandwidth; voltage 37 kV; zerodrive stable; Broadband amplifiers; Circuits; Frequency; Magnetic field measurement; Mirrors; Operational amplifiers; Power amplifiers; Power generation; Power measurement; Pulse amplifiers; Confocal waveguide; gyro traveling wave amplifier; quasi-optical;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference, 2008. IVEC 2008. IEEE International

Conference_Location

Monterey, CA

Print_ISBN

978-1-4244-1715-5

Type

conf

DOI

10.1109/IVELEC.2008.4556430

Filename

4556430