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Optimal Wireless Power Transfer to Systems in an Enclosed Resonant Cavity.

Authors :
Mei, Henry
Yu-Wen Huang
Thackston, Kyle A.
Irazoqui, Pedro P.
Source :
IEEE Antennas & Wireless Propagation Letters; 2016, Vol. 15, p1036-1039, 4p
Publication Year :
2016

Abstract

This letter describes the development and implementation of an impedance-matching (IM) method for achieving optimal power transfer efficiencies (PTE's) in cavity resonator wireless power transfer (WPT) systems. Specifically, we develop a bandpass filter (BPF) circuit model and utilize network analysis to predict and realize maximum achievable PTE to miniature systems enclosed within a hollow metallic cylindrical cavity excited in TM010 resonant mode. Measured PTE results are demonstrated matching closely with the developed theory and circuit simulations. We achieve a peak PTE of 33% to a 5-mm-diameter receive coil that occupies a volume that is 5.23 ×106 times smaller than the volume of the cylindrical cavity. Our achieved PTE is 4 times larger than the PTE achieved to a system with no optimal IM network but only a single resonant capacitor connected in series with the receive coil. The model and results presented illustrate our optimal design methodology for realizing maximum achievable PTE in cavity resonator WPT systems. [ABSTRACT FROM PUBLISHER]

Details

Language :
English
ISSN :
15361225
Volume :
15
Database :
Complementary Index
Journal :
IEEE Antennas & Wireless Propagation Letters
Publication Type :
Academic Journal
Accession number :
127949742
Full Text :
https://doi.org/10.1109/LAWP.2015.2490542