Title :
Design of a 70-GHz second-harmonic gyroklystron experiment for radar applications
Author_Institution :
Inst. for Plasma Res., Maryland Univ., College Park, MD, USA
fDate :
3/1/2000 12:00:00 AM
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;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
