Sideband mode competition in a gyrotron oscillator
Physical review letters, 1992•APS
We report the first observation of sideband mode competition in a gyrotron with an
overmoded open waveguide resonator. Experiments were conducted in a gyrotron
operating in the TE 1 6, 2 mode at 146 GHz. Up to 600 kW of power was generated in 3-μs
pulses at 80 kV beam voltage and up to 40 A beam current. A pair of sidebands was excited
corresponding to the TE 1 5, 2 and TE 1 7, 2 modes offset by±5 GHz. A multimode,
multifrequency, self-consistent time-dependent code predicts the excitation of the sidebands …
overmoded open waveguide resonator. Experiments were conducted in a gyrotron
operating in the TE 1 6, 2 mode at 146 GHz. Up to 600 kW of power was generated in 3-μs
pulses at 80 kV beam voltage and up to 40 A beam current. A pair of sidebands was excited
corresponding to the TE 1 5, 2 and TE 1 7, 2 modes offset by±5 GHz. A multimode,
multifrequency, self-consistent time-dependent code predicts the excitation of the sidebands …
Abstract
We report the first observation of sideband mode competition in a gyrotron with an overmoded open waveguide resonator. Experiments were conducted in a gyrotron operating in the TE 1 6, 2 mode at 146 GHz. Up to 600 kW of power was generated in 3-μs pulses at 80 kV beam voltage and up to 40 A beam current. A pair of sidebands was excited corresponding to the TE 1 5, 2 and TE 1 7, 2 modes offset by±5 GHz. A multimode, multifrequency, self-consistent time-dependent code predicts the excitation of the sidebands with good accuracy.
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