Improvement of transmission efficiency using shielded-loop antenna for wireless power transfer

Coupled-resonant wireless power transfer (WPT) using shielded loop antenna for high-efficiency transmission is proposed. Transmission efficiency is determined by the coupling coefficient k and the Q factor. Coupling coefficient k is determined by the difference between the magnetic- and the electric...

Full description

Saved in:
Bibliographic Details
Published in2016 International Symposium on Antennas and Propagation (ISAP) pp. 52 - 53
Main Authors Kajiura, Naoya, Hirayama, Hiroshi
Format Conference Proceeding
LanguageEnglish
Published IEICE 01.10.2016
Subjects
Coupling coefficient
Couplings
Electric fields
Magnetic fields
Resonant frequency
Shielded-loop antenna
Transmitting antennas
Wireless power transfer
Online AccessGet full text

Cover

More Information
Summary:Coupled-resonant wireless power transfer (WPT) using shielded loop antenna for high-efficiency transmission is proposed. Transmission efficiency is determined by the coupling coefficient k and the Q factor. Coupling coefficient k is determined by the difference between the magnetic- and the electric-field coupling coefficient. By using the shielded-loop structure, electric field coupling is suppressed to improve transmission efficiency. Numerical simulation verified that transmission distance over 80% efficiency is extend 2.8 times by using the shielded-loop antenna.