The phase stability of nanosecond Gunn oscillators-Reference-Cited by-同舟云学术

The phase stability of nanosecond Gunn oscillators

Published:2022 Issue:2 Volume:70 Page:461-474
ISSN:0042-8469
Container-title:Vojnotehnicki glasnik
language:en
Short-container-title:Vojnotehnički glasnik

Author:

Kozhevnikov Vasily^ORCID,Kozyrev Andrey^ORCID,Konev Vladimir^ORCID,Klimov Aleksey^ORCID

Abstract

Introduction/purpose: Detailed theoretical and experimental studies have been carried out in order to investigate the problem of a phase stability in electrodynamically uncoupled Gunn oscillators. Methods: The influence of modulating pulse instabilities has been investigated by means of computer simulation in the framework of a nonlinear one-dimensional theoretical model of the GaAs Gunn diode semiconductor active region. Experimental observations were also conducted including microwave measurements and antenna far-field estimation. They confirm the main theoretical results and extend the key work conclusions. Results: It was shown that the initial phase of the microwave oscillation out of the Gunn oscillator is independent of internal noises of the semiconductor structure and can be fixed only by the modulating voltage pulse. Conclusion: Gunn-diodes based microwave oscillators were stabilized using the leading edge of the voltage pulse from the modulating power supply. These results open up serious prospects for designing antenna phased arrays based on Gunn oscillators without mutual feedback (electrodynamically independent).

Publisher

Centre for Evaluation in Education and Science (CEON/CEES)

Link

https://scindeks-clanci.ceon.rs/data/pdf/0042-8469/2022/0042-84692202461K.pdf

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