Title

Optimized Shield Design for Reduction of EMF from Wireless Power Transfer Systems

Abstract

In this paper, we proposed an optimized shield design for electromagnetic field (EMF) reduction from the wireless power transfer (WPT) system. Three different cases of shield design are examined in terms of strength of EMF and mutual inductance, which is directly related to power transfer efficiency. Analysis results show that when using both ferrite and conducting sheets as a shield for transmitter and receiver coils, a leakage magnetic field can be significantly reduced with negligible change in mutual inductance. Additionally, the effects of the conducting sheet's size and thickness on the EMF and the mutual inductance are also examined. Our investigation will be helpful to engineers designing modern WPT systems.

Department(s)

Electrical and Computer Engineering

Keywords and Phrases

Electromagnetic Field (EMF); Shield Design; Wireless Power Transfer (WPT)

International Standard Serial Number (ISSN)

1349-2543

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2014 Institute of Electronics, Information and Communication Engineers, All rights reserved.

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