Enhanced planar wireless power transfer using strongly coupled magnetic resonance

Author

Jolani, Farid ; Yiqiang Yu ; Zhizhang Chen

Author_Institution

Dept. of Electr. & Comput. Eng., Dalhousie Univ., Halifax, NS, Canada

Volume

51

Issue

2

fYear

2015

fDate

1 22 2015

Firstpage

173

Lastpage

175

Abstract

A novel planar wireless power transfer (WPT) system using strongly coupled magnetic resonance is proposed. Additional layers of printed spiral coils (PSCs) are applied to the transmitter/receiver resonator of the 4-coil planar WPT system to improve the quality factor and transmission efficiency. In addition, by connecting multilayer transmitter/receiver resonators together using conductive shorting walls, the transmission efficiency is further improved. Five planar WPT systems using coplanar PSCs and printed loops have been investigated. The measured results show that the proposed design with two additional layers of resonators and shorting walls could improve the transmission efficiency from 77.27 to 84.38%.

Keywords

coils; inductive power transmission; magnetic resonance; resonators; conductive shorting wall; enhanced planar wireless power transfer; printed loops; printed spiral coils; quality factor; receiver resonator; strongly coupled magnetic resonance; transmission efficiency; transmitter resonator;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el.2014.4104

Filename

7014449