Magnetoinductive waves in attenuating media

Chu, S. , Luloff, M. S., Yan, J., Petrov, P., Stevens, C. J. and Shamonina, E. (2021) Magnetoinductive waves in attenuating media. Scientific Reports, 11, 7679. (doi: 10.1038/s41598-021-85838-7) (PMID:33828111) (PMCID:PMC8027633)

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The capability of magnetic induction to transmit signals in attenuating environments has recently gained significant research interest. The wave aspect—magnetoinductive (MI) waves—has been proposed for numerous applications in RF-challenging environments, such as underground/underwater wireless networks, body area networks, and in-vivo medical diagnosis and treatment applications, to name but a few, where conventional electromagnetic waves have a number of limitations, most notably losses. To date, the effects of eddy currents inside the dissipative medium have not been characterised analytically. Here we propose a comprehensive circuit model of coupled resonators in a homogeneous dissipative medium, that takes into account all the electromagnetic effects of eddy currents, and, thereby, derive a general dispersion equation for the MI waves. We also report laboratory experiments to confirm our findings. Our work will serve as a fundamental model for design and analysis of every system employing MI waves or more generally, magnetically-coupled circuits in attenuating media.

Item Type:Articles
Additional Information:This work was supported by EPSRC Grant EP/N010493/1 as part of the SYMETA Project ( P.P. also acknowledges the financial support from the Engineering and Physical Sciences Research Council (EPSRC) of the United Kingdom via the EPSRC Centre for Doctoral Training in Metamaterials (Grant No. EP/L015331/1).
Glasgow Author(s) Enlighten ID:Cong Chu, Dr Son
Authors: Chu, S., Luloff, M. S., Yan, J., Petrov, P., Stevens, C. J., and Shamonina, E.
College/School:College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience
Journal Name:Scientific Reports
Publisher:Nature Research
ISSN (Online):2045-2322
Copyright Holders:Copyright © 2021 The Authors
First Published:First published in Scientific Reports 11: 7679
Publisher Policy:Reproduced under a Creative Commons License

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