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

fYear

2013

fDate

15-16 May 2013

Firstpage

13

Lastpage

16

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Power Transfer (WPT), 2013 IEEE

Conference_Location

Perugia

Print_ISBN

978--14673-5008-2

Type

conf

DOI

10.1109/WPT.2013.6556870

Filename

6556870