Transfer efficiency of a misalignment of resonators in MR‐WPT for a laptop computer with SGR

This study analyzed the effect of a misalignment of resonators on a magnetic resonant wireless power transfer (MR‐WPT) for a practical laptop computer with a slit ground resonator (SGR). MR‐WPT can be used in many applications for charging mobile devices, such as laptop computers, tablet PCs, and sm...

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Bibliographic Details
Published in:Microwave and optical technology letters 2017-08, Vol.59 (8), p.2016-2021
Main Authors: Kang, Seok Hyon, Jung, Chang Won
Format: Article
Language:English
Subjects:
Charging
Computer simulation
Computing time
Electronic devices
Inductance
magnetic resonance
Misalignment
Portable computers
Resonators
slit ground resonator
Smartphones
Tablet computers
transfer efficiency
Transmitters
wireless power transfer
Wireless power transmission
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Summary:This study analyzed the effect of a misalignment of resonators on a magnetic resonant wireless power transfer (MR‐WPT) for a practical laptop computer with a slit ground resonator (SGR). MR‐WPT can be used in many applications for charging mobile devices, such as laptop computers, tablet PCs, and smartphones. We proposed a wireless power‐charging system from a transmitter on a desk or table to the receiver imbedded on a laptop computer. However, transfer efficiency decreased because of the misalignment between the movable receiver and the transmitter. This misalignment could have undue influence on the transfer power of MR‐WPT. To verify the effect of a misalignment of resonators on MR‐WPT, we simulated mutual inductance according to the misaligned distance between the transmitter and the receiver. Moreover, we experimentally proved this relationship through a practical laptop model with an SGR in MR‐WPT.
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.30671