NDLI: 3D-spatial efficiency optimisation of MR-WPT using a reconfigurable resonator-array for laptop applications

Content Provider	IET Digital Library
Author	Lee, Hoon Hee Kang, Seok Hyon Jung, Chang Won
Abstract	In this study, magnetic resonant wireless power transfer (MR-WPT) system with a reconfigurable resonator using RF switches (PIN diodes) was studied to improve and optimise the transfer efficiency (TE) in a limited three-dimensional (3D) zone for laptop applications. Generally, the TE of the MR-WPT system is decreased by a 3D spatial variation (distance and location) in between the transmitter (Tx) source and the receiver (Rx) load. To improve and optimise the TE for this spatial variation, the authors utilised RF switches in a planar arrayed coils in the Rx. The TE was optimised by the status of the coil resonator (modes 1–6, open, and short) in the Rx. The average TE of the optimal mode increased >5% comparing with that of a certain mode in the whole range of the spatial variation (x, y, z directions; 80 × 80 × 40 cm3). In addition, they analytically and experimentally demonstrated the TE optimisation by the practical laptop model with the proposed MR-WPT system installed into a desk (yz-plane) and the wall (z-direction). Through this research, the proposed reconfigurable resonator with RF switches was shown to be possible for use as a reconfigurable efficiency optimiser in the MR-WPT system.
Starting Page	1594
Ending Page	1602
Page Count	9
ISSN	17518725
Volume Number	11
e-ISSN	17518733
Issue Number	Issue 11, Sep (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/11/11
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2017.0185
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2017-06-12
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	3D-spatial Efficiency Optimisation Junction And Barrier Diode Magnetic Resonant Wireless Power Transfer System MR-WPT System Optimisation Optimisation Technique P-i-n Diode PIN Diode Reconfigurable Resonator-array Resonator RF Switches TE Optimisation Transfer Efficiency Waveguide And Microwave Transmission Line Component
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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