Title :
A consideration of efficiency improvement of transmitting coil array in wireless power transfer with magnetically coupled resonance
Author :
Miwa, Keishi ; Mori, Hisamichi ; Kikuma, Nobuyoshi ; Hirayama, Hiroshi ; Sakakibara, Kunio
Author_Institution :
Department of Computer Science and Engineering, Nagoya Institute of Technology Gokiso-cho, Showa-ku, Nagoya, 466-8555, Japan
Abstract :
A two-dimensional transmitting coil array is used to expand receiving area in wireless power transfer with magnetically coupled resonance and the effect of the array is discussed in this paper. The transmitting coil array has more than one resonant frequency due to mutual couplings between transmitting coils. Therefore, we propose a method of designing the receiving coil to keep high transmission efficiency in wider area. The computer analysis shows the improvement of transmission efficiency of the proposed method.
Keywords :
coils; impedance matching; inductive power transmission; magnetic resonance; high transmission efficiency; magnetically coupled resonance; mutual coupling; resonant frequency; two-dimensional transmitting coil array; wireless power transfer; Arrays; Capacitors; Coils; Magnetic resonance; Tuning; Wireless communication; Impedance matching; Magnetically coupled resonance; Transmitting coil array; Wireless power transfer;
Conference_Titel :
Wireless Power Transfer (WPT), 2013 IEEE
Conference_Location :
Perugia
Print_ISBN :
978--14673-5008-2
DOI :
10.1109/WPT.2013.6556870
