Characteristics of Electric Field and Radiation Pattern on Different Locations of the Human Body for In-Body Wireless Communication

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 f...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2013-10, Vol.61 (10), p.5350-5354
Main Authors: Ho-Yu Lin, Takahashi, Masaharu, Saito, Kazuyuki, Ito, Koichi
Format: Article
Language:English
Subjects:
Antenna radiation patterns
Antennas
Applied sciences
Dipole antennas
Electric fields
Exact sciences and technology
FDTD method
in-body wireless communication
numerical human body
Phantoms
Radiocommunications
Services and terminals of telecommunications
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Telemetry. Remote supervision. Telewarning. Remote control
Wireless communication
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Summary: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.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2013.2272672