Nonlinear signals distortions in stabilized autodyne microwave oscillators

The analysis of nonlinear distortions of signals in autodyne microwave oscillators stabilized by external high-Q resonator has been performed. Connection between the basic operating and stabilizing resonators is structurally executed according to the scheme of the low-and-high-pass filter with resistive coupling. The new type of nonlinear distortions of autodyne signal, caused by a frequency dispersion of oscillatory system of stabilized autodyne is revealed. Experimental investigations of the hybrid-integrated oscillator on the 8-mm Gunn diode have confirmed results of theoretical researches.