Frequency characteristic of transmission efficiency depended on matching condition of transducer in ultrasonic wireless power transmission system

Author

Fujimori, Kazuhiro ; Tominaga, Shota ; Tanda, Koichiro ; Tsuruta, Kenji ; Nogi, Shigeji

Author_Institution

Grad. Sch. of Natural Sci. & Technol., Okayama Univ., Okayama, Japan

fYear

2012

fDate

Oct. 29 2012-Nov. 2 2012

Firstpage

166

Lastpage

169

Abstract

The ultrasonic wireless power transmission technology is researching as the one option of wireless power transmission technologies, because the loss of the electromagnetic wave becomes larger around a human body area or under juicy environments. For highly efficient power transmission, it is necessary to investigate the transducer as the transmitter and the receiver. In this paper, the frequency characteristic of transmission efficiency depended on matching condition of developed transducer is investigated. As results, the transmission efficiency is made wideband to select optimal matching condition at each frequency. Especially, maximum transmission efficiency is 75.1% at designed frequency 1.20MHz.

Keywords

electromagnetic wave transmission; transducers; electromagnetic wave; frequency 1.20 MHz; frequency characteristic; matching condition; transducer; transmission efficiency; ultrasonic wireless power transmission system; Acoustics; Frequency measurement; Impedance; Inductors; Power transmission; Transducers; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (ISAP), 2012 International Symposium on

Conference_Location

Nagoys

Print_ISBN

978-1-4673-1001-7

Type

conf

Filename

6393877