IEICE Communications Express
Online ISSN : 2187-0136
ISSN-L : 2187-0136
Performance evaluation and experiment of an implantable RFID tag antenna in human arm for in-body wireless communication
HoYu LinMasaharu TakahashiDaisuke TakeiKazuyuki SaitoKoichi Ito
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2013 Volume 2 Issue 8 Pages 347-351


In-body wireless communication has attracted increasing attention because it can not only be used in medical application but also be combined with wireless communication to replace the existing connectivity in biological telemetry monitoring [1]. Therefore, it is possible to integrate radio frequency identification (RFID) system into a brand-new device [2]. However, it has been very difficult to combine them due to high lossy of human body. In this paper, an implantable tag antenna which is designed to match an integrated circuit (IC) chip of 9.3-j55.2Ω [3] is proposed and realized in experiment. The dimensions of proposed antenna is 15.75mm × 4mm. The impedance characteristic of proposed antenna is analyzed by finite-difference time-domain (FDTD) method. By introducing the three-layered phantom, the measurements of impedance characteristic is implemented; moreover, the maximum read range of 1.3cm is confirmed by a handy reader.

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© 2013 The Institute of Electronics, Information and Communication Engineers
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