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J Electromagn Eng Sci > Volume 13(3); 2013 > Article
Journal of Electromagnetic Engineering and Science 2013;13(3):173-177.
DOI: https://doi.org/10.5515/JKIEES.2013.13.3.173   
New Analysis Method for Wireless Power Transfer System with Multiple n Resonators
Ju-Hui Kim, Byung-Chul Park, Jeong-Hae Lee
Department of Electronic Information and Communication Engineering, Hongik University
Abstract
This paper presents a new method for analyzing the maximum efficiency of a wireless power transfer (WPT) system with multiple n resonators. The method is based on ABCD matrices and allows transformation of the WPT system with multiple n resonators into a single two-port network system. The general maximum efficiency equation of a WPT system with multiple n resonators is derived using the ABCD matrix. Use of this equation allows placement of the relay resonators for maximum efficiency even though they are asymmetrical. The general maximum efficiency equation and the method of the optimum placement are verified by a full wave simulation. The results show that the method is useful for the analysis of a WPT system with relay resonators.
Key words: ABCD Matrix, Optimum Placement, Relay Resonators, Two-Port Network Theory, Wireless Power Transfer

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