Abstract

General equations are obtained for the autodyne response in the case of an arbitrary frequency modulation both over the active element bias circuit and voltage variation on the voltage-dependent capacitor (varicap). The results of investigation of an autodyne oscillator with linear frequency modulation following the antisymmetric and symmetric saw-tooth function are presented, with the oscillator being affected by its own reflected radiation. Special features of self-oscillations of such autodynes are considered, with the aim to improve their characteristics and extend the functional capabilities of short-range autodyne radars. The experimental results obtained for the TIGEL 08FM oscillator module manufactured using a hybrid-integral technology on the basis of a mm-range Gunn diode are reported.

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