A WBAN Reader Antenna to Improve the Wireless Link with an In-Body WBAN Antenna

Abstract

In this paper, a method is proposed to improve the wireless link of an in-body wireless body-area network(WBAN) antenna with the off-body signal-reading system. A small WBAN antenna embeddable in the human body is designed. A wide-band size-reduced reader antenna is proposed to cope with frequency shift resulting from a short distance between the agent and reader antennas, and attenuation by the human tissue. The transmission from the in-body agent antenna to the reader is shown to improve by over 50 dB.