Magnetic near-field focusing and optimal wireless power transfer
2015 IEEE Wireless Power Transfer Conference (WPTC), 2015•ieeexplore.ieee.org
The relation between subwavelength focusing near-field arrays and arrays designed to
maximize power transfer efficiency is investigated. The intuitive expectation that magnetic
field focusing around the receiver may maximize power transfer efficiency is not confirmed,
when the fields of capacitively loaded loop arrays, designed for optimal power transfer
efficiency, are analyzed. The significant role of loss is outlined and interesting aspects of the
underlying physics are illustrated.
maximize power transfer efficiency is investigated. The intuitive expectation that magnetic
field focusing around the receiver may maximize power transfer efficiency is not confirmed,
when the fields of capacitively loaded loop arrays, designed for optimal power transfer
efficiency, are analyzed. The significant role of loss is outlined and interesting aspects of the
underlying physics are illustrated.
The relation between subwavelength focusing near-field arrays and arrays designed to maximize power transfer efficiency is investigated. The intuitive expectation that magnetic field focusing around the receiver may maximize power transfer efficiency is not confirmed, when the fields of capacitively loaded loop arrays, designed for optimal power transfer efficiency, are analyzed. The significant role of loss is outlined and interesting aspects of the underlying physics are illustrated.
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