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Optimum frequency of high Q-factor resonator for magnetic resonance coupling
- Authors
- Park, J.-H.; Park, B.-C.; Lee, J.-H.; Ryu, Y.-H.; Park, E.-S.; Kwon, S.-W.
- Issue Date
- 2011
- Keywords
- High Q-factor; Magnetic Resonance Coupling; Mu-zero resonator
- Citation
- European Microwave Week 2011: Wave to the Future, EuMW 2011, Conference Proceedings - 41st European Microwave Conference, EuMC 2011, pp.61 - 63
- Journal Title
- European Microwave Week 2011: Wave to the Future, EuMW 2011, Conference Proceedings - 41st European Microwave Conference, EuMC 2011
- Start Page
- 61
- End Page
- 63
- ISSN
- 0000-0000
- Abstract
- In this paper, an efficient wireless power transmission (WPT) method using high Q-factor mu-zero resonators (MZRs) is investigated. Since one-cell of a MZR consists of series inductance and capacitance, it can be analyzed by using a series RLC circuit. To design an efficient WPT system, the maximum Q-factor and the optimum resonance frequency are analytically calculated by adjusting the size of a MZR. It is always observed that one seventh of the total power loss is radiative loss at the optimum resonance frequency. The theoretical and measured results prove that the Q-factor and WPT efficiency are also maximized when the radiation efficiency of the resonator is one-seventh. © 2011 EUROPEAN MICROWAVE ASSOC.
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