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Energies 2017, 10(7), 1022; doi:10.3390/en10071022

Opportunities and Challenges for Near-Field Wireless Power Transfer: A Review

Department of Electrical, Electronic and Systems Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM Bangi, Selangor 43600, Malaysia
Department of Computer Communication Engineering, Al-Rafidain University College, Filastin, Baghdad 10064, Iraq
Department of Medical Instrumentation Techniques Engineering, Electrical Engineering Technical College, Middle Technical University (MTU), Al Doura, Baghdad 10022, Iraq
Author to whom correspondence should be addressed.
Received: 20 May 2017 / Revised: 11 July 2017 / Accepted: 12 July 2017 / Published: 18 July 2017
(This article belongs to the Section Energy Sources)
View Full-Text   |   Download PDF [1355 KB, uploaded 20 July 2017]   |  


Traditional power supply cords have become less important because they prevent large-scale utilization and mobility. In addition, the use of batteries as a substitute for power cords is not an optimal solution because batteries have a short lifetime, thereby increasing the cost, weight, and ecological footprint of the hardware implementation. Their recharging or replacement is impractical and incurs operational costs. Recent progress has allowed electromagnetic wave energy to be transferred from power sources (i.e., transmitters) to destinations (i.e., receivers) wirelessly, the so-called wireless power transfer (WPT) technique. New developments in WPT technique motivate new avenues of research in different applications. Recently, WPT has been used in mobile phones, electric vehicles, medical implants, wireless sensor network, unmanned aerial vehicles, and so on. This review highlights up-to-date studies that are specific to near-field WPT, which include the classification, comparison, and potential applications of these techniques in the real world. In addition, limitations and challenges of these techniques are highlighted at the end of the article. View Full-Text
Keywords: electromagnetic wave; capacitive coupling; inductive coupling; magnetic resonant coupling; near-field; wireless power transfer (WPT) electromagnetic wave; capacitive coupling; inductive coupling; magnetic resonant coupling; near-field; wireless power transfer (WPT)

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Jawad, A.M.; Nordin, R.; Gharghan, S.K.; Jawad, H.M.; Ismail, M. Opportunities and Challenges for Near-Field Wireless Power Transfer: A Review. Energies 2017, 10, 1022.

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