Optimum Design of Wireless Power Transmission Systems in Unknown Electromagnetic Environments

This paper presents a design method for wireless power transmission systems in unknown electromagnetic environments. In a wireless power transmission system, several antenna elements are used for power transmitting and one antenna is utilized for power receiving. By measuring the scattering paramete...

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Main Authors: Hucheng Sun, Wen Geyi
Format: Article
Language:English
Published: IEEE 2017-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8051032/
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author Hucheng Sun
Wen Geyi
author_facet Hucheng Sun
Wen Geyi
author_sort Hucheng Sun
collection DOAJ
description This paper presents a design method for wireless power transmission systems in unknown electromagnetic environments. In a wireless power transmission system, several antenna elements are used for power transmitting and one antenna is utilized for power receiving. By measuring the scattering parameters (S-parameters) of the whole system, the power transmission capability of the system can be fully characterized. The maximum possible power transmission efficiency (PTE) can then be determined, and the corresponding excitations for the transmitting antenna elements can be obtained. By designing a feeding network that provides the required excitations to feed the transmitting antenna elements, the optimum power transmission can be achieved without identifying the properties of the unknown electromagnetic environments. Two design examples are presented to demonstrate the proposed method. The measured PTEs are close to the theoretical maximum possible values.
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spelling doaj.art-cf1e42cfbc14433ebb7cd884857879ce2022-12-21T23:06:02ZengIEEEIEEE Access2169-35362017-01-015201982020610.1109/ACCESS.2017.27570028051032Optimum Design of Wireless Power Transmission Systems in Unknown Electromagnetic EnvironmentsHucheng Sun0https://orcid.org/0000-0002-3834-2677Wen Geyi1Key Laboratory of Meteorological Disaster, Ministry of Education, Nanjing University of Information Science and Technology, Nanjing, ChinaResearch Center of Applied Electromagnetics, Nanjing University of Information Science and Technology, Nanjing, ChinaThis paper presents a design method for wireless power transmission systems in unknown electromagnetic environments. In a wireless power transmission system, several antenna elements are used for power transmitting and one antenna is utilized for power receiving. By measuring the scattering parameters (S-parameters) of the whole system, the power transmission capability of the system can be fully characterized. The maximum possible power transmission efficiency (PTE) can then be determined, and the corresponding excitations for the transmitting antenna elements can be obtained. By designing a feeding network that provides the required excitations to feed the transmitting antenna elements, the optimum power transmission can be achieved without identifying the properties of the unknown electromagnetic environments. Two design examples are presented to demonstrate the proposed method. The measured PTEs are close to the theoretical maximum possible values.https://ieeexplore.ieee.org/document/8051032/Wireless power transmissionantenna arrayfeeding network
spellingShingle Hucheng Sun
Wen Geyi
Optimum Design of Wireless Power Transmission Systems in Unknown Electromagnetic Environments
IEEE Access
Wireless power transmission
antenna array
feeding network
title Optimum Design of Wireless Power Transmission Systems in Unknown Electromagnetic Environments
title_full Optimum Design of Wireless Power Transmission Systems in Unknown Electromagnetic Environments
title_fullStr Optimum Design of Wireless Power Transmission Systems in Unknown Electromagnetic Environments
title_full_unstemmed Optimum Design of Wireless Power Transmission Systems in Unknown Electromagnetic Environments
title_short Optimum Design of Wireless Power Transmission Systems in Unknown Electromagnetic Environments
title_sort optimum design of wireless power transmission systems in unknown electromagnetic environments
topic Wireless power transmission
antenna array
feeding network
url https://ieeexplore.ieee.org/document/8051032/
work_keys_str_mv AT huchengsun optimumdesignofwirelesspowertransmissionsystemsinunknownelectromagneticenvironments
AT wengeyi optimumdesignofwirelesspowertransmissionsystemsinunknownelectromagneticenvironments