• Vol 2, No 1 (2011)
  • Electrical, Electronics, and Computer Engineering

A Small 915MHz Receiving Antenna for Wireless Power Transmission Aimed at Medical Applications

Toshihiro Kumagai, Kazuyuki Saito, Masaharu Takahashi, Koichi Ito


Publish at : 01 Jan 2011
IJtech : IJtech Vol 2, No 1 (2011)
DOI : https://doi.org/10.14716/ijtech.v2i1.43

Cite this article as:
Kumagai, T., Saito, K., Takahashi, M., Ito, K., 2011. A Small 915MHz Receiving Antenna for Wireless Power Transmission Aimed at Medical Applications. International Journal of Technology. Volume 2(1), pp. 20-27
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Toshihiro Kumagai Graduate School of Engineering, Chiba University, Japan
Kazuyuki Saito Research Center for Frontier Medical Engineering, Chiba University, Japan
Masaharu Takahashi Research Center for Frontier Medical Engineering, Chiba University, Japan
Koichi Ito Graduate School of Engineering, Chiba University, Japan
Email to Corresponding Author

Abstract
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Wireless power transmission is being investigated as a means to operate tiny medical devices such as the capsular endoscope, which is able to exist for a long period during diagnostic procedures within the body. In this paper, we examine the wireless power transmission to a capsular endoscope by electromagnetic waves to show its usability for medical applications. A modified helical antenna inside the endoscope is proposed as a power receiving antenna, operating at 915 MHz. By calculating a maximum received power in the stomach using such antenna, the results show that adequate power can be well received.

Capsular endoscope; Helical antenna; Medical application; Receiver; Wireless power transmission

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