EPJ Appl. Metamat.
Volume 5, 2018
Metamaterials'2017 – Metamaterials and Novel Wave Phenomena: Theory, Design and Application
|Number of page(s)||8|
|Published online||23 February 2018|
Fields and coupling between coils embedded in conductive environments
Department of Engineering Science, University of Oxford,
OX1 3PJ, UK
* e-mail: email@example.com
Accepted: 17 November 2017
Published online: 23 February 2018
An approximate solution is developed for the mutual inductance of two circular coils enclosed by insulating cavities in a conducting medium. This solution is used to investigate the variation of the mutual inductance upon the conductivity of the background (e.g., soil, seawater or human body), as well as upon other parameters such as the vertical of the coils and the displacement of one of the coils in the horizontal plane. Our theoretical results are compared with full wave simulations and a previous solution valid when a conductive slab is inserted between two coupled resonant coils. The proposed approach can have direct impact on the design and optimisation of magnetoinductive waveguides and wireless power transfer for underground/underwater networks and embedded biomedical systems.
Key words: Coils / conducting materials / mutual inductance / magnetic fields / eddy currents / magnetoinductive waves / wireless underground / underwater communications networks
© S. Chu et al., published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.