Characteristics of a stable 200 kW second-harmonic gyro-TWT amplifier
- Univ. of California, Davis, CA (United States). Dept. of Applied Science
The results of a second-harmonic TE{sub 21} gyro-TWT amplifier experiment that generated an unprecedented 207 kW peak output power with 13% efficiency in Ku-band will be presented. This is a significant advance over the highest gyro-TWT power level previously reported which was 128 kW and achieved by Varian in C-band at the first harmonic. The amplifier had a saturated gain of 16 dB with a bandwidth of 2.1% and was completely zero-drive stable. Harmonic gyro-TWT`s have the potential to stably generate significantly higher levels of power because the threshold beam current level for oscillation is raised dramatically due to the relatively weaker harmonic interaction. The success of this experiment validates the marginal stability design (MSD) procedure and also indicates the power level can be further increased by operating with higher harmonics.
- OSTI ID:
- 428046
- Report Number(s):
- CONF-960634--
- Country of Publication:
- United States
- Language:
- English
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