Noise characteristics of autodynes with frequency stabilization by means of an external high-Q cavity
- Authors: Noskov V.Y.1, Ignatkov K.A.1
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Affiliations:
- Ural Federal University
- Issue: Vol 61, No 9 (2016)
- Pages: 1052-1063
- Section: Physical Processes in Electron Devices
- URL: https://journals.rcsi.science/1064-2269/article/view/197338
- DOI: https://doi.org/10.1134/S1064226916090102
- ID: 197338
Cite item
Abstract
The expressions describing the autodyne (AD) response are obtained with allowance for the internal noise of a frequency-stabilized microwave oscillator subjected to the action of its self-radiation reflected from an object. The results of analyzing the AD and noise characteristics of the stabilized oscillator built around the band-reflecting filter with resistive coupling are presented. The conditions leading to the appearance of the periodic non-stationarity of noise characteristics are established. It is demonstrated that frequency stabilization is ensured by a gain in dynamic range. The experimental data on unstabilized and stabilized hybrid-integral AD oscillators based on the two-mesa Gunn diode of 8-mm range are presented.
About the authors
V. Ya. Noskov
Ural Federal University
Author for correspondence.
Email: noskov@oko-ek.ru
Russian Federation, ul. Mira 19, Yekaterinburg, 620002
K. A. Ignatkov
Ural Federal University
Email: noskov@oko-ek.ru
Russian Federation, ul. Mira 19, Yekaterinburg, 620002