DocumentCode :
742315
Title :
Characteristics of Electric Field and Radiation Pattern on Different Locations of the Human Body for In-Body Wireless Communication
Author :
Ho-Yu Lin ; Takahashi, Masaharu ; Saito, Kazuyuki ; Ito, Kei
Author_Institution :
Grad. Sch. of Eng., Chiba Univ., Chiba, Japan
Volume :
61
Issue :
10
fYear :
2013
Firstpage :
5350
Lastpage :
5354
Abstract :
An in-body wireless communication system has attracted increasing attention because it can replace the connectivity of biological telemetry monitoring. However, the human body is a very complex environment (lossy, dispersive, and inhomogeneous) and affects the electromagnetic (EM) wave in the near field. Moreover, the entire human geometry affects the radiation pattern in the far field. This communication presents the behavior of the EM wave in the near and far fields at 2.45 GHz when a dipole antenna (used as an implantable antenna) is embedded in the vicinity of the clavicle, upper arm, lower arm, and hand of a human body. The effect on the electric field and radiation performance is simulated by the finite-difference time-domain method. By introducing a three-layered phantom, the antenna performance is confirmed. Moreover, the measured and simulated results are in good agreement with each other. The information derived from this study can be used in the evaluation of the link budget of in-body wireless communication.
Keywords :
antenna radiation patterns; biomedical telemetry; dipole antennas; electric fields; electromagnetic waves; finite difference time-domain analysis; radiocommunication; EM wave; FDTD method; antenna performance; biological telemetry monitoring; dipole antenna; electric field; electromagnetic wave; far field; finite-difference time-domain method; frequency 2.45 GHz; human body; human geometry; implantable antenna; in-body wireless communication system; near field; radiation pattern; three-layered phantom; Antenna radiation patterns; Dipole antennas; Electric fields; Phantoms; Wireless communication; FDTD method; in-body wireless communication; numerical human body;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.2013.2272672
Filename :
6572835
Link To Document :
بازگشت