14 December 1992 Sideband mode competition in a gyrotron oscillator
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Proceedings Volume 1929, 17th International Conference on Infrared and Millimeter Waves; 19293O (1992) https://doi.org/10.1117/12.2298249
Event: 17th International Conference on Infrared and Millimeter Waves, 1992, Pasadena, CA, United States
Abstract
We reported the first observation of sideband mode competition in a gyrotron with an overmoded open waveguide resonator. Further experiments were conducted in a gyrotron operating in the TE16,2 mode at 146 GHz. A pair of sidebands was excited corresponding to the TE15,2 and TE17,2 modes offset by +5 GHz. A multirnode, multifrequency, self-consistent time-dependent code predicts the excitation of the sidebands with good accuracy. A new cavity with a higher Q was designed to eliminate the sidebands. Tests with this cavity found no detectable sideband power. Up to 1.3 MW of power was generated in 3 ,us pulses at 80 kV beam voltage and 40 A beam current.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
W. C. Guss, "Sideband mode competition in a gyrotron oscillator", Proc. SPIE 1929, 17th International Conference on Infrared and Millimeter Waves, 19293O (14 December 1992); doi: 10.1117/12.2298249; https://doi.org/10.1117/12.2298249
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