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J Electromagn Eng Sci > Volume 10(4); 2010 > Article
Journal of the Korean Institute of Electromagnetic and Science 2010;10(4):237-243.
DOI: https://doi.org/10.5515/JKIEES.2010.10.4.237   
Design of Resonator-Coupled Wireless Power Transfer System by Use of BPF Theory
Ikuo Awai, Tetsuya Ishida
Department of Electronics & Informatics, Ryukoku University
A wireless power transfer system based on magnetically coupled two resonators is analysed using the filter theory. Design equations for each lumped parameter circuit components are derived. As a result, change of coupling coefficient between the resonators and/or change of load resistance are easily responded. Effect of circuit loss to the design theory is also addressed. After designing a power transfer system, a real system is constructed using spiral and loop coils. Dependence of circuit elements on their dimensions is measured in advance and used to cope with the designed element values. Simulated response by use of designed element values and measured result are compared, indicating the validity of the theory.
Key words: BPF Design Theory, Magnetically Coupled Resonators, Simulation and Experiment, System Design, Wireless Power Transfer


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