Numerical and Experimental Investigations of Self-mixing Effect of a Planar Gunn Diode Oscillator

Zhong, M. Y., Cumming, D. R.S. and Li, C. (2022) Numerical and Experimental Investigations of Self-mixing Effect of a Planar Gunn Diode Oscillator. In: 2021 16th European Microwave Integrated Circuits Conference (EuMIC), London, UK, 03-04 Apr 2022, pp. 390-393. ISBN 9782874870644 (doi: 10.23919/EuMIC50153.2022.9783700)

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Abstract

In this paper, we investigate the self-mixing effect of planar Gunn diode oscillators numerically and experimentally. The simulation shows a 4 μm long GaAs-based heterostructure planar Gunn diode can generate not only an oscillation frequency of 27.5 GHz but also a down-converted signal of 2.5 GHz when an external signal of 30 GHz is injected to the diode. The conversion loss varies between 14 dB and 20 dB depending on the biasing condition as well as the amplitude and frequency of the input signal. Experiments confirmed the simulation results. The self-mixing effect of planar Gunn oscillators show a great potential for simplifying RF frontends for millimeter-wave applications such as 5G and beyond communications, radar, and imaging systems.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Zhong, Mingyan and Li, Professor Chong and Cumming, Professor David
Authors: Zhong, M. Y., Cumming, D. R.S., and Li, C.
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Research Group:MaTE
ISBN:9782874870644
Published Online:01 June 2022
Copyright Holders:Copyright © 2021 EuMA
First Published:First published in 2021 16th European Microwave Integrated Circuits Conference (EuMIC): 390-393
Publisher Policy:Reproduced in accordance with the publisher copyright policy
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