Optimum Design of Wireless Power Transmission Systems in Unknown Electromagnetic Environments | Zendy

Hucheng Sun | Zendy; Wen Geyi | Zendy

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Optimum Design of Wireless Power Transmission Systems in Unknown Electromagnetic Environments

Author(s) -

Hucheng Sun,

Wen Geyi

Publication year - 2017

Publication title -

ieee access

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.587

H-Index - 127

ISSN - 2169-3536

DOI - 10.1109/access.2017.2757002

Subject(s) - aerospace , bioengineering , communication, networking and broadcast technologies , components, circuits, devices and systems , computing and processing , engineered materials, dielectrics and plasmas , engineering profession , fields, waves and electromagnetics , general topics for engineers , geoscience , nuclear engineering , photonics and electrooptics , power, energy and industry applications , robotics and control systems , signal processing and analysis , transportation

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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