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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2019-07-22
An Omnidirectional Resonator for Wireless Power Transfer
By
Yangjun Zhang,

    Professor Yangjun Zhang

    Dept. of Electronics and Informatics

    Ryukoku University

    Japan

    Homepage

Masaki Obata

    Dr. Masaki Obata

    Department of Electronics & Informatics

    Ryukoku University

    Japan

    Homepage

Progress In Electromagnetics Research M, Vol. 83, 63-71, 2019
doi:10.2528/PIERM19050101 | Google Scholar

Abstract
Angular misalignment is an issue for many potential wireless power transfer (WPT) applications. This paper proposes a resonator as an effort to solve this issue. In the beginning, this paper gives an example of quantitative coupling analysis on angular misalignments. Then, it proposes an omnidirectional resonator for electromagnetic coupling WPT system. The proposed resonator is based on the structure of a regular polyhedron. It is constructed of four planar spiral resonators arranged as a regular tetrahedron. The coupling between the proposed resonator and a planar spiral resonator is verified. Both the simulated and measured results show that the coupling coefficient can be kept at a certain level when the omnidirectional resonator rotates around all x, y, and z axes regardless of the orientation of the planar spiral resonator respect to the omnidirectional resonator.
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Citation
Yangjun Zhang, and Masaki Obata, "An Omnidirectional Resonator for Wireless Power Transfer," Progress In Electromagnetics Research M, Vol. 83, 63-71, 2019.
doi:10.2528/PIERM19050101
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