Design of a frequency-doubling, 35-GHz, 1-MW gyroklystron

Author

Walter, Mark T. ; Nusinovich, Gregory S. ; Lawson, Wes G. ; Granatstein, Victor L. ; Levush, Baruch ; Danly, Bruce G.

Author_Institution

Maryland Univ., College Park, MD, USA

Volume

28

Issue

3

fYear

2000

fDate

6/1/2000 12:00:00 AM

Firstpage

688

Lastpage

694

Abstract

Presents a design of a 1-MV, frequency-doubling, four-cavity gyroklystron. The input cavity is driven by a 17.5-GHz driver and operates in the transverse electric (TE)₀₁₁ mode at the fundamental cyclotron resonance, while the buncher, penultimate, and output cavities operate in the TE₀₂₁ mode at twice the signal frequency at the second cyclotron harmonic. The device exhibits about 40% efficiency and 40-dB gain at 1-MW power level with a fractional bandwidth exceeding 0.1%. The power-bandwidth product for this device is on the same order as that of Ka-band gyroklystrons without the frequency doubling feature.

Keywords

cavity resonators; cyclotron resonance; electron guns; gyrotrons; harmonic generation; klystrons; millimetre wave generation; millimetre wave tubes; 1 MW; 17.5 GHz; 35 GHz; 40 dB; 40 percent; Ka-band gyroklystrons; TE₀₂₁ mode; buncher cavities; design; driver; efficiency; fractional bandwidth; frequency-doubling four-cavity gyroklystron; frequency-doubling gyroklystron; fundamental cyclotron resonance; gain; gyroklystron; input cavity; output cavities; penultimate cavities; power level; power-bandwidth product; second cyclotron harmonic; signal frequency; transverse electric (TE)₀₁₁ mode; Bandwidth; Cyclotrons; Electron beams; Frequency conversion; Gyrotrons; Klystrons; Laboratories; Magnetic resonance; Millimeter wave technology; Tellurium;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.887703

Filename

887703