Intermodulation properties of double- and triple-circuit parametric amplifiers with nonlinear barrier capacitance

Authors

  • Anatoly M. Bobreshov Voronezh State University, Russian Federation https://orcid.org/0000-0002-5429-3780
  • Yurii P. Sbitnev Voronezh State University, Russian Federation
  • Nina N. Mymrikova Voronezh State University, Russian Federation
  • Oleg I. Gulko Voronezh State University, Russian Federation
  • Grigorii K. Uskov Voronezh State University, Russian Federation https://orcid.org/0000-0001-8250-2511

DOI:

https://doi.org/10.3103/S0735272716040038

Keywords:

regenerative double-circuit parametric amplifier, RDPA, regenerative triple-circuit parametric amplifier, RTPA, nonlinear distortions, intermodulation interferences, two-signal characteristics, intermodulation characteristics

Abstract

There have been performed an experimental investigation of intermodulation effects in narrowband regenerative double- and triple-circuit parametric amplifiers (RDPA and RTPA) with nonlinear barrier capacitance. It has been obtained that their single-signal and double-signal intermodulation characteristics are of the conventional form, and their phase shifts in the vicinity of the resonance frequency are close to 90°, that is not enough for the compensation of nonlinear distortions in the case of amplifiers cascading. It has been demonstrated that the introduction of the additional oscillatory circuit at the double signal frequency into RDPA does allow effective compensation of the intermodulation interferences of odd order in the single-stage parametric amplifier.

References

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Published

2016-04-21

Issue

Vol. 59 No. 4 (2016)

Section

Research Articles