Another approach to the study of phase noise in electrical oscillators

Marcello Carlà

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arXiv · 1504.08228

Another approach to the study of phase noise in electrical oscillators

Marcello Carlà

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Abstract

The mechanism at the base of phase noise generation in electrical oscillators is reexamined from first principles. The well known Lorentzian spectral power distribution is obtained, together with a clearcut expression for the line-width parameter. The mechanism of suppression of the amplitude fluctuations and its effects are discussed and the true role of the figure of merit $Q_0$ of the resonator is restated. The up conversion of low frequency components from a non-white noise source is also considered. A number of simple numerical experiments is presented to illustrate and clarify the mathematical results.

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Marcello Carlà. 2015-04-23. Another approach to the study of phase noise in electrical oscillators. https://arxiv.org/abs/1504.08228

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