Model of injection-locked relativistic klystron oscillator

John W. Luginsland; Yue Ying Lau; Kyle J. Hendricks; Phillip Dale Coleman

doi:10.1117/12.255392

28 October 1996 Model of injection-locked relativistic klystron oscillator

John W. Luginsland, Yue Ying Lau, Kyle J. Hendricks, Phillip Dale Coleman

Proceedings Volume 2843, Intense Microwave Pulses IV; (1996) https://doi.org/10.1117/12.255392
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

By the use of a simple model, we explicitly incorporate the coupling between the driver cavity and the booster cavity in a relativistic klystron amplifier (RKA). We show that this RKA configuration may turn into an injection locked oscillator only when the beam current is sufficiently high. Other features revealed by this model include: the downshifted frequency mode (`0' mode) is unstable whereas the upshifted frequency mode (`(pi) ' mode) is stable; the growth rate of the `0' mode is relatively mild so that the oscillation can start only in an injection locked mode; the oscillation does not require the presence of reflected electrons; and the separation of the cavities must be sufficiently short. These, and other features, are found to be in qualitative agreement with the recent experiments on the injection locked relativistic klystron oscillator that were conducted at the Phillips Laboratory.

Citation Download Citation

John W. Luginsland, Yue Ying Lau, Kyle J. Hendricks, and Phillip Dale Coleman "Model of injection-locked relativistic klystron oscillator", Proc. SPIE 2843, Intense Microwave Pulses IV, (28 October 1996); https://doi.org/10.1117/12.255392

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KEYWORDS

Oscillators

Electrons

Modulation

Amplifiers

Electroluminescence

Silicon

Electron beams

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