Wall-Meshed Cavity Resonator-Based Wireless Power Transfer Without Blocking Wireless Communications With Outside World

In order to address the issue of wireless communication signal blocking in the traditional cavity resonance wireless power transfer (CR WPT), a wall-meshed cavity resonator constructed of the meshed metallic walls is proposed together with an analytical design method. This cavity resonator can not o...

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Published in:IEEE transactions on industrial electronics (1982) 2022-07, Vol.69 (7), p.7481-7490
Main Authors: Yue, Zhen, Zhang, Qiaoli, Yang, Zhouming, Bian, Rui, Zhao, Deshuang, Wang, Bing-Zhong
Format: Article
Language:English
Subjects:
Cavity resonance wireless power transfer (CR WPT)
Cavity resonators
Couplings
Electromagnetic radiation
Magnetic fields
Maximum power transfer
Receivers
Safety
three-dimensional (3-D) transfer
Torso
wall-meshed cavity resonator
Wireless communication
Wireless communications
wireless power and information transfer
Wireless power transfer
Wireless power transmission
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cited_by cdi_FETCH-LOGICAL-c291t-e0202d286535fb783bf369bbe88db3fba28cd2c708c21747a64a7c9ec90a4f943
cites cdi_FETCH-LOGICAL-c291t-e0202d286535fb783bf369bbe88db3fba28cd2c708c21747a64a7c9ec90a4f943
container_end_page 7490
container_issue 7
container_start_page 7481
container_title IEEE transactions on industrial electronics (1982)
container_volume 69
creator Yue, Zhen
Zhang, Qiaoli
Yang, Zhouming
Bian, Rui
Zhao, Deshuang
Wang, Bing-Zhong
description In order to address the issue of wireless communication signal blocking in the traditional cavity resonance wireless power transfer (CR WPT), a wall-meshed cavity resonator constructed of the meshed metallic walls is proposed together with an analytical design method. This cavity resonator can not only generate and confine the electromagnetic waves of natural resonant modes inside the cavity resonator, but also support wireless communications with outside. The wall-meshed cavity resonator is analytically designed by the known theoretical equations without time-consuming optimizations and verified by electromagnetic simulations and experiments. The results show that the proposed CR WPT system can achieve simultaneous wireless power transfer in the cavity and wireless communications with outside. The maximum power transfer efficiency is higher than 85%. The power transfer efficiency exceeds 60% within about 70% areas inside the wall-meshed cavity. For wireless communication signals passing through the wall-meshed cavity, the attenuation at 2.1 GHz (4G), 2.45 GHz (Wi-Fi), and 3.5 GHz (5G) is about 6.0, 5.1, and 3.8 dB, respectively. Additionally, the safety performance of the proposed CR WPT system is numerically investigated by the specific absorption rate analysis of a human torso model.
doi_str_mv 10.1109/TIE.2021.3102453
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source IEEE Electronic Library (IEL) Journals
subjects Cavity resonance wireless power transfer (CR WPT)
Cavity resonators
Couplings
Electromagnetic radiation
Magnetic fields
Maximum power transfer
Receivers
Safety
three-dimensional (3-D) transfer
Torso
wall-meshed cavity resonator
Wireless communication
Wireless communications
wireless power and information transfer
Wireless power transfer
Wireless power transmission
title Wall-Meshed Cavity Resonator-Based Wireless Power Transfer Without Blocking Wireless Communications With Outside World
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