Experimental study of high-power Ka-band second-harmonic gyroklystron amplifier

Evgeny V. Sokolov; Igor G. Gachev; Evgeny V. Zasypkin; Igor I. Antakov

doi:10.1117/12.218577

8 September 1995 Experimental study of high-power Ka-band second-harmonic gyroklystron amplifier

Evgeny V. Sokolov, Igor G. Gachev, Evgeny V. Zasypkin, Igor I. Antakov

Proceedings Volume 2557, Intense Microwave Pulses III; (1995) https://doi.org/10.1117/12.218577
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

An experimental study was carried out to test high-harmonic gyroklystron amplifier concept. A two-cavity 35-GHz second-harmonic gyroklystron with the TE₀₂₁ cavity mode has been built and tested in pulse operation. Output power of 258 kW with efficiency 18% and 17-dB gain have been produced at 72 kV beam voltage and 20-A beam current. Bandwidth of about 0.3% have been observed. The restriction of the output power, efficiency and gain was caused by the spurious oscillations excited in the second cavity in the TE₀₁₁ mode at the fundamental cyclotron frequency.

Citation Download Citation

Evgeny V. Sokolov, Igor G. Gachev, Evgeny V. Zasypkin, and Igor I. Antakov "Experimental study of high-power Ka-band second-harmonic gyroklystron amplifier", Proc. SPIE 2557, Intense Microwave Pulses III, (8 September 1995); https://doi.org/10.1117/12.218577

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