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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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 6, pp. 54–60, June, 2008.
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Votoropin, S.D., Noskov, V.Y. & Smolskiy, S.M. An analysis of the autodyne effect of oscillators with linear frequency modulation. Russ Phys J 51, 610–618 (2008). https://doi.org/10.1007/s11182-008-9083-5
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DOI: https://doi.org/10.1007/s11182-008-9083-5