Open AccessEnhanced planar wireless power transfer using strongly coupled magnetic resonance
Author(s) -
Jolani Farid,
Yu Yiqiang,
Chen Zhizhang
Publication year - 2015
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2014.4104
Subject(s) - wireless power transfer , resonator , planar , materials science , transmitter , electromagnetic coil , power transmission , optoelectronics , maximum power transfer theorem , q factor , electrical conductor , inductive coupling , transmission (telecommunications) , resonance (particle physics) , spiral (railway) , electrical engineering , power (physics) , acoustics , engineering , physics , computer science , mechanical engineering , channel (broadcasting) , computer graphics (images) , particle physics , quantum mechanics , composite material
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%.