Design of Coupled Resonators for Wireless Power Transfer to Mobile Devices using Magnetic Field Shaping
In this paper, we designed the magnetically coupled resonators for wireless power transfer to mobile devices using field shaping technique. Power transfer to mobile devices is normally sensitive to variation of distance and alignment between transmitters and receivers. The magnetic field shaping technique, which is applied by On-line Electric Vehicle (OLEV) system, is considered to compensate the sensitivity, to reduce electromagnetic fields (EMF) around the receivers, and also to improve efficiency of power transfer . We developed miniaturized coupled resonators to cover mobile devices, and enhanced coupling effect with modified formation of coupled resonators. Also, the coupled resonators are designed to receive power stably, less sensitive to variation of distance and alignment. We present measurement results with s-parameter value of the amount of power transferred.
W. Ahn et al., "Design of Coupled Resonators for Wireless Power Transfer to Mobile Devices using Magnetic Field Shaping," Proceedings of the 2012 IEEE International Symposium on Electromagnetic Compatibility (2012, Pittsburgh, PA), pp. 772-776, Institute of Electrical and Electronics Engineers (IEEE), Aug 2012.
The definitive version is available at https://doi.org/10.1109/ISEMC.2012.6351667
2012 IEEE International Symposium on Electromagnetic Compatibility, EMC 2012 (2012: Aug. 5-10, Pittsburgh, PA)
Electrical and Computer Engineering
Keywords and Phrases
Coupled Resonator; Coupling Effect; Measurement Results; Power Transfers; Shaping Techniques; Wireless Power Transfer, Alignment; Electric Vehicles; Electromagnetic Compatibility; Electromagnetic Fields; Magnetic Fields; Mobile Devices; Scattering Parameters, Crystal Resonators
International Standard Book Number (ISBN)
International Standard Serial Number (ISSN)
Article - Conference proceedings
© 2012 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.
10 Aug 2012