Noise in Mutually Coupled Oscillators

Abstract

A general noise theory for microwave oscillators, which is based upon the describing function method, is developed and applied to the cases of mutually coupled and multiple-device oscillators. Explicit expressions are derived for the output power, the FM-and the AM-noise. Both theoretical and experimental results are given concerning the dependence of the output noise on the number of active devices and on the parameters of the coupling network.