Repetitive Operation of an S-Band 1-GW Relativistic Klystron Amplifier

• Published in: IEEE transactions on plasma science Vol. 35; no. 2; pp. 384 - 387
• Main Authors: Hua Huang, Feng, D.C., Luo, G.Y., Lei, L.Y., Chen, Zh.G., Liao, Y., Tan, J., Jin, X., Meng, F.B.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.04.2007; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Bandwidths; Electron beams; Electronic tubes, masers; Electronics; Exact sciences and technology; High power microwave (HPM); Impedance; Klystrons; Microwave devices; Operational amplifiers; Power amplifiers; Power generation; Pulse amplifiers; pulse shortening; Radiofrequency amplifiers; Receivers & amplifiers; relativistic klystron amplifier (RKA); repetitively pulsed operation; Resonance; Microwave device; Magnetron; repetitively pulsed operation; Klystron; Electron beam; Microwave generation; High power microwave (HPM); Microwave tube; S band; Microwave generator; Microwave technology; High power; Microwave resonator; Microwave amplifier; Radiated power; pulse shortening; relativistic klystron amplifier (RKA)
• ISSN: 0093-3813; 1939-9375
• DOI: 10.1109/TPS.2007.893263

This paper reports on the operation of a repetitively pulsed relativistic klystron amplifier at 100 pps. The electron beam was reproducibly modulated to > 74%. Using a 700-kV, 6.5-kA, 25-ns electron beam and a 600-kW Magnetron as inputs, a 1.2-GW radiated power in 20-ns full-width at half-maximum pulses at 2.95 GHz is extracted. The average power is 2.4 kW. The efficiency is 27%, and the gain is about 33 dB