TY - JOUR
T1 - A Conformal Split-Ring Loop as a Self-Resonator for Wireless Power Transfer
AU - Wang, Jingchen
AU - Leach, Mark Paul
AU - Lim, Eng Gee
AU - Wang, Zhao
AU - Jiang, Zhenzhen
AU - Pei, Rui
AU - Huang, Yi
N1 - Funding Information:
This work was supported in part by the AI University Research Centre (AI-URC) through the XJTLU Key Programme Special Fund under Grant KSF-P-02, and in part by the XJTLU Research Development Fund under Grant PGRS-13-03-06, Grant RDF-14-03-24, and Grant RDF-14-02-48.
Publisher Copyright:
© 2019 IEEE.
PY - 2020
Y1 - 2020
N2 - A conventional printed spiral coil (PSC) has a self-resonant frequency and its equivalent circuit is a parallel inductor-capacitor (LC) circuit. It is desirable to use PSCs in wireless power transfer (WPT) applications; however, these are most commonly constituted by a series-primary and series- or parallel-secondary circuit. This paper proposes a printed conformal split-ring loop with the characteristic of a series LC circuit at its resonance frequency. Regarding the loop as a self-resonator, a magnetic-resonance coupled (MRC) WPT system with series-primary and secondary operating at 433 MHz in the industrial scientific and medical (ISM) band is presented. The maximum measured power transfer efficiency is 87.9% at a transfer distance of 22 mm, the best-reported result for such a configuration.
AB - A conventional printed spiral coil (PSC) has a self-resonant frequency and its equivalent circuit is a parallel inductor-capacitor (LC) circuit. It is desirable to use PSCs in wireless power transfer (WPT) applications; however, these are most commonly constituted by a series-primary and series- or parallel-secondary circuit. This paper proposes a printed conformal split-ring loop with the characteristic of a series LC circuit at its resonance frequency. Regarding the loop as a self-resonator, a magnetic-resonance coupled (MRC) WPT system with series-primary and secondary operating at 433 MHz in the industrial scientific and medical (ISM) band is presented. The maximum measured power transfer efficiency is 87.9% at a transfer distance of 22 mm, the best-reported result for such a configuration.
KW - Wireless power transfer
KW - magnetic resonance coupling
KW - near fields
KW - printed spiral coils
KW - split-ring resonators
UR - http://www.scopus.com/inward/record.url?scp=85077745772&partnerID=8YFLogxK
U2 - 10.1109/ACCESS.2019.2918640
DO - 10.1109/ACCESS.2019.2918640
M3 - Article
AN - SCOPUS:85077745772
SN - 2169-3536
VL - 8
SP - 911
EP - 919
JO - IEEE Access
JF - IEEE Access
M1 - 8721462
ER -