The spectral parameters of a self-oscillatory system with a resonant circuit of finite mechanical rigidity under the action of natural fluctuations are investigated. It is shown that, in such autogenerators, depending on the self-oscillation power, the spectral characteristics may differ significantly from the traditional form; the generation lines are considerably broadened here, and regions of considerable intensity appear in the spectra of amplitude and frequency fluctuations; in real conditions, this leads to significant reduction in stability of the self-oscillation frequency.
Department of Physics of Oscillations, Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119991, Russia
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