Title :
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
fDate :
Oct. 29 2012-Nov. 2 2012
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;
Conference_Titel :
Antennas and Propagation (ISAP), 2012 International Symposium on
Conference_Location :
Nagoys
Print_ISBN :
978-1-4673-1001-7
