Peculiarities of millimeter range autodynes

Abstract

A functional diagram and an equivalent circuit diagram of an autodyne oscillator are presented in the paper. Features of the formation of autodyne and noise characteristics are discussed taking into account the nonlinearity of autodyne phase characteristics. Analytical expressions for the noise process are given for the case of simultaneous influence of the autodyne’s reflected self-radiation and self-noise on the autodyne. The positive influence of the use of an external high-Q resonator on the formation of low-frequency data signals is shown. It consists in the increase of the dynamic range, reduction of autodyne frequency deviation, narrowing of microwave radiation spectrum. The results of experimental research of conventional autodynes and those stabilized by an external high-Q resonator are presented in the paper.

About the authors

K. A. Ignatkov

Ural Federal University named after the first President of Russia B.N.Yeltsin

Author for correspondence.
Email: k.a.ignatkov@gmail.com

Candidate of Science
senior engineer

Russian Federation

References

  1. Gershenzon E.M., Tumanov B.N., Buzykin V.T., Kalygina V.M., Levit B.I. General characteristics and peculiarities of the autodyne effect in self oscillators // Radiotekhnika i elektronika. 1982. V. 27, no. 1. P. 104-112. (In Russ.)
  2. Votiropin S.D., Noskov V.Ya., Smohkiy S.M. Modern Ilybrid-Integreted Autodyne Oscillators of Microvave and Millimeter Ranges and Their Application. Part 2. Uspekhi sovremennoi radioelektroniki. 2007. No. 7. P. 1-34. (In Russ.)
  3. Noskov V.Ya., Ignatkov K.A., Smolskiy S.M. Autodyne Characteristic Dependence on the UHF Oscillators Inherent Parameters. Radiotehnika. 2012. No. 6. P. 24-43. (In Russ.)
  4. Noskov V.Ya., Ignatkov K.A., Smolskiy S.M. Modern hybrid-integrated autodyne oscillators of microwave and millimeter-wave ranges and their application. Part 7. Dynamics of formation of autodyne and modulation characteristics. Uspekhi sovremennoi radioelektroniki. 2013. No. 6. P. 3-52. (In Russ.)
  5. Noskov V.Ya., Ignatkov K.A., Smolskiy S.M. Modern hybrid-integrated autodyne oscillators of microwave and millimeter-wave ranges and their applications. Part 8. Autodynes with frequency stabilization by means of the external high-Q resonator. Uspekhi sovremennoi radioelektroniki. 2013. No. 12. P. 3-38. (In Russ.)
  6. Noskov V.Ya., Ignatkov K.A. Peculiarities of Noise Characteristics of Autodynes Under Strong External Feedback. Russian Physics Journal. 2014. V. 56, Iss. 12. P. 1445-1460. doi: 10.1007/s11182-014-0198-6

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