Design of a 70-GHz second-harmonic gyroklystron experiment for radar applications

Author

Lawson, W.

Author_Institution

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

Volume

10

Issue

3

fYear

2000

fDate

3/1/2000 12:00:00 AM

Firstpage

108

Lastpage

110

Abstract

A second-harmonic gyroklystron circuit has been designed to produce 140 kW of peak power near 70 GHz. A 70 kV 8 A beam with an average velocity ratio of 1.35 and an axial velocity spread of 8% r.m.s. interacts with four cavities operating in circular electric modes. The input cavity operates in the TE₀₁₁ mode and has been utilized previously in a number of successful first-harmonic gyroklystrons. The remaining cavities operate in the TE₀₂₁ mode and have been designed to be compatible with the existing first-harmonic test bed. The simulated gain is about 33.4 dB, and the expected instantaneous bandwidth is nearly 0.091%

Keywords

cavity resonators; gyrotrons; harmonics; klystrons; millimetre wave amplifiers; millimetre wave tubes; radar equipment; 140 kW; 33.4 dB; 70 GHz; 70 kV; 8 A; TE₀₁₁ mode; TE₀₂₁ mode; cavities; circular electric modes; radar applications; second-harmonic gyroklystron experiment; Bandwidth; Circuits; Dielectric losses; Gyrotrons; Klystrons; Millimeter wave radar; Radar applications; Radio frequency; Tellurium; Testing;

fLanguage

English

Journal_Title

Microwave and Guided Wave Letters, IEEE

Publisher

ieee

ISSN

1051-8207

Type

jour

DOI

10.1109/75.845713

Filename

845713