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Title: Rectangular coils optimization for wireless power transmission
Authors: Duan, Z.
Guo, Y.-X. 
Kwong, D.-L.
Issue Date: 2012
Citation: Duan, Z., Guo, Y.-X., Kwong, D.-L. (2012). Rectangular coils optimization for wireless power transmission. Radio Science 47 (3) : -. ScholarBank@NUS Repository.
Abstract: Wirelessly coupled coils are crucial for efficient power transmission in various applications. Previous design methods are only eligible for improving the efficiency of circular or square coils. This paper presents a method of characterizing and optimizing rectangular coils used in inductively coupled systems. After setting up a lumped component model for inductive coils, the efficiency can be expressed in terms of geometrical parameters of the coils. Subsequently, the power efficiency can be plotted versus these parameters in Matlab, thus getting the desired coils for optimum power transfer. With this design procedure from mathematical optimization, we eventually designed two rectangular coils spaced 10mm apart, which achieves a power transmission efficiency of 46.4% at a frequency of 3MHz. The design methodology is verified by simulation and measurement. © 2012. American Geophysical Union. All Rights Reserved.
Source Title: Radio Science
ISSN: 00486604
DOI: 10.1029/2011RS004970
Appears in Collections:Staff Publications

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