DocumentCode
716935
Title
Magnetic near-field focusing and optimal wireless power transfer
Author
Lang, Hans-Dieter ; Ludwig, Alon ; Sarris, Costas D.
Author_Institution
Edward S. Rogers Sr. Dept. of Electr. & Comput. Eng., Univ. of Toronto, Toronto, ON, Canada
fYear
2015
fDate
13-15 May 2015
Firstpage
1
Lastpage
3
Abstract
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.
Keywords
inductive power transmission; receivers; magnetic near-field focusing; optimal power transfer efficiency; receiver; wireless power transfer; Conductors; Focusing; Impedance; Propagation losses; Receivers; Transmitters; Wireless communication;
fLanguage
English
Publisher
ieee
Conference_Titel
Wireless Power Transfer Conference (WPTC), 2015 IEEE
Conference_Location
Boulder, CO
Type
conf
DOI
10.1109/WPT.2015.7140128
Filename
7140128
Link To Document