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Proceedings Paper

Performance characteristics of the NTHU gyrotron traveling wave amplifier
Author(s): K. R. Chu
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Paper Abstract

Effects of magnetic field profiling and tuning on the performance of Ka-band gyrotron traveling wave amplifiers are examined experimentally and verified by theoretical calculations. Regimes of stable and unstable operations are systematically investigated and sources of spontaneous oscillations are identified. It is shown that, through magnetic field profiling and tuning, the gyro-TWT can be optimized for maximum gain, bandwidth, or efficiency. In particular, a power level of 50 kW has been achieved with magnetic field profiling. The performances of severed and unsevered gyro-TWT's are also compared. The addition of a sever is shown to result in very significant improvement in gain and stability. Critical functions of a sever in a gyro-TWT will be also discussed.

Paper Details

Date Published: 1 October 1991
PDF: 1 pages
Proc. SPIE 1576, 16th International Conference on Infrared and Millimeter Waves, 15762R (1 October 1991); doi: 10.1117/12.2297812
Show Author Affiliations
K. R. Chu, National Tsing Hua Univ. (China)

Published in SPIE Proceedings Vol. 1576:
16th International Conference on Infrared and Millimeter Waves
Minh Quang Tran, Editor(s)

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