Performance characteristics of a high-power X-band two-cavity gyroklystron

Journal Article · Mon Jun 01 04:00:00 EDT 1992 · IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/27.142822· OSTI ID:7077422

Lawson, W; Calame, J P; Hogan, B P; Skopec, M; Striffler, C D; Granatstein, V L ^[1]

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1. Lab. for Plasma Research and Electrical Engineering Dept., Univ. of Maryland, College Park, MD (US)

In this paper the operating characteristics of a two-cavity X-band gyroklystron experiment are reported. Beam voltages and currents up to 440 kV and 200 A, respectively, are generated in 1 {mu}s pulses by a thermionic magnetron injection gun. Velocity ratios (v{sub {perpendicular}}/v{sub z}) near one in the output cavity are used to achieve peak powers of 24 MW near 9.87 GHz. The maximum saturated efficiency of more than 33% occurs at a beam voltage of 425 kV and a current of 150 A. A large signal gain in excess of 34 dB is realized by operating the input cavity just below the start oscillation threshold. Details of tube stability and the dependence of amplification on magnetic field profile, input signal parameters, and various beam quantities are presented.

• OSTI ID: 7077422
• Journal Information: IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States) Vol. 20:3; ISSN 0093-3813; ISSN ITPSB
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426000 -- Engineering-- Components
Electron Devices & Circuits-- (1990-)
440800* -- Miscellaneous Instrumentation-- (1990-)
47 OTHER INSTRUMENTATION
AMPLIFICATION
AMPLIFIERS
BEAM CURRENTS
CAVITIES
CURRENTS
EFFICIENCY
ELECTRON TUBES
ELECTRONIC EQUIPMENT
ENERGY
EQUIPMENT
KLYSTRONS
MAGNETIC FIELDS
MICROWAVE AMPLIFIERS
MICROWAVE EQUIPMENT
MICROWAVE TUBES
OPERATION
PERFORMANCE
STABILITY
THRESHOLD ENERGY