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Proceedings Paper

Experimental study of a two-cavity gyrotron with feedback between cavities
Author(s): Igor I. Antakov; Igor G. Gachev; Evgeny V. Sokolov
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Paper Abstract

A two-cavity gyrotron has some advantages in comparison with a traditional gyrotron. In particluar, the use of relatively short cavities with properly chosen length of the drift tube between them allows to enhance output power retaining the maximum efficiency, and to realize a tunable oscillator with high efficiency and power. The use of feedback between the cavities is proposed to solve the problem of mode competition in such an oscillator. The results of an experimental study of a Ka-band two-cavity gyrotron operating in the TE021 cavity mode are presented. The maximum power 300 kW was achieved with efficiency of 23%, the maximum efficiency was about 30%. Three zones of generation corresponding to different phase length of the feedback loop were observed. Experiments showed that the use of feedback in a two-cavity gyrotron subdues spurious oscillations.

Paper Details

Date Published: 8 September 1995
PDF: 6 pages
Proc. SPIE 2557, Intense Microwave Pulses III, (8 September 1995); doi: 10.1117/12.218576
Show Author Affiliations
Igor I. Antakov, Institute of Applied Physics (Russia)
Igor G. Gachev, Institute of Applied Physics (Russia)
Evgeny V. Sokolov, Institute of Applied Physics (Russia)

Published in SPIE Proceedings Vol. 2557:
Intense Microwave Pulses III
Howard E. Brandt, Editor(s)

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