Surface Routing for Wireless Power Transfer Using 2-D Relay Resonator Arrays

Wireless power transfer via magnetic resonance coupling offers the prospect of autonomously charging connected devices. Previous work demonstrated that the system deployment can be facilitated by “routing” power on 2-D relay resonator arrays, using the multi-hop phenomenon. Pow...

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Main Authors: Masahiro Morita, Takuya Sasatani, Ryo Takahashi, Yoshihiro Kawahara
Format: Article
Language:English
Published: IEEE 2021-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9547299/
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author Masahiro Morita
Takuya Sasatani
Ryo Takahashi
Yoshihiro Kawahara
author_facet Masahiro Morita
Takuya Sasatani
Ryo Takahashi
Yoshihiro Kawahara
author_sort Masahiro Morita
collection DOAJ
description Wireless power transfer via magnetic resonance coupling offers the prospect of autonomously charging connected devices. Previous work demonstrated that the system deployment can be facilitated by “routing” power on 2-D relay resonator arrays, using the multi-hop phenomenon. Power propagates through untethered relay resonators in such systems, and the routing strategy significantly affects the power transfer efficiency. However, most previous studies limit the routing to line-shaped routes, which compromises power transfer efficiency to preserve the simplicity of analysis. Here we show a surface routing approach, which can be orderly generated and is more efficient than linear routing. The confronting challenge is the complex representation of cross-coupled relays, which this work overcomes by conditioning the resonators’ current by appending additional loading conditions to the relays. Simulation-based evaluations show that the proposed approach improves the efficiency by up to 10% in 1.5 m range power delivery.
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spelling doaj.art-f1f9c71c2e7541d2af5b44cfba5c043b2022-12-21T21:27:15ZengIEEEIEEE Access2169-35362021-01-01913310213311010.1109/ACCESS.2021.31151439547299Surface Routing for Wireless Power Transfer Using 2-D Relay Resonator ArraysMasahiro Morita0https://orcid.org/0000-0001-6429-0113Takuya Sasatani1https://orcid.org/0000-0003-2268-6106Ryo Takahashi2https://orcid.org/0000-0001-5045-341XYoshihiro Kawahara3https://orcid.org/0000-0002-0310-2577Graduate School of Engineering, The University of Tokyo, Tokyo, JapanGraduate School of Engineering, The University of Tokyo, Tokyo, JapanGraduate School of Engineering, The University of Tokyo, Tokyo, JapanGraduate School of Engineering, The University of Tokyo, Tokyo, JapanWireless power transfer via magnetic resonance coupling offers the prospect of autonomously charging connected devices. Previous work demonstrated that the system deployment can be facilitated by “routing” power on 2-D relay resonator arrays, using the multi-hop phenomenon. Power propagates through untethered relay resonators in such systems, and the routing strategy significantly affects the power transfer efficiency. However, most previous studies limit the routing to line-shaped routes, which compromises power transfer efficiency to preserve the simplicity of analysis. Here we show a surface routing approach, which can be orderly generated and is more efficient than linear routing. The confronting challenge is the complex representation of cross-coupled relays, which this work overcomes by conditioning the resonators’ current by appending additional loading conditions to the relays. Simulation-based evaluations show that the proposed approach improves the efficiency by up to 10% in 1.5 m range power delivery.https://ieeexplore.ieee.org/document/9547299/Magnetic resonance couplingmultihoppower routingwireless power transfer
spellingShingle Masahiro Morita
Takuya Sasatani
Ryo Takahashi
Yoshihiro Kawahara
Surface Routing for Wireless Power Transfer Using 2-D Relay Resonator Arrays
IEEE Access
Magnetic resonance coupling
multihop
power routing
wireless power transfer
title Surface Routing for Wireless Power Transfer Using 2-D Relay Resonator Arrays
title_full Surface Routing for Wireless Power Transfer Using 2-D Relay Resonator Arrays
title_fullStr Surface Routing for Wireless Power Transfer Using 2-D Relay Resonator Arrays
title_full_unstemmed Surface Routing for Wireless Power Transfer Using 2-D Relay Resonator Arrays
title_short Surface Routing for Wireless Power Transfer Using 2-D Relay Resonator Arrays
title_sort surface routing for wireless power transfer using 2 d relay resonator arrays
topic Magnetic resonance coupling
multihop
power routing
wireless power transfer
url https://ieeexplore.ieee.org/document/9547299/
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AT takuyasasatani surfaceroutingforwirelesspowertransferusing2drelayresonatorarrays
AT ryotakahashi surfaceroutingforwirelesspowertransferusing2drelayresonatorarrays
AT yoshihirokawahara surfaceroutingforwirelesspowertransferusing2drelayresonatorarrays