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A novel magnetically-coupled resonant wireless power transfer (MCR-WPT) system using an array of printed spiral resonators is presented. By replacing the single transmitting resonator in a conventional MCR-WPT with an array of smaller resonators, the transfer efficiency of the planar WPT system in both the over-coupled and under-coupled regions are significantly enhanced. Furthermore, with a proper...
A novel magnetically-coupled resonant wireless power transfer (MCR-WPT) system using an array of printed spiral coil (PSC) resonators is presented to expand the receiving area. The resonator array is excited with a single planar driving loop to yield uniform magnetic field distribution at the receiver plane. First, the performance of a conventional transmitter coil array consisting of one transmitting...
A fully planar wireless power transfer (WPT) system via strongly coupled magnetic resonances is presented. In it, both the transmitter and the receiver are planarized with the use of coplanar printed spiral coils (PSCs) and a printed loop. An equivalent circuit model of the proposed planar WPT system is derived to facilitate the design, and a flowchart is provided for the optimization of the system...
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