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Design of Implantable Antennas for Medical Telemetry: Dependence upon Operation Frequency, Tissue Anatomy, and Implantation Site

Design of Implantable Antennas for Medical Telemetry: Dependence upon Operation Frequency, Tissue Anatomy, and Implantation Site

Asimina Kiourti, Konstantina S. Nikita
Copyright: © 2013 |Volume: 1 |Issue: 1 |Pages: 18
ISSN: 2166-7241|EISSN: 2166-725X|EISBN13: 9781466631847|DOI: 10.4018/ijmstr.2013010102
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MLA

Kiourti, Asimina, and Konstantina S. Nikita. "Design of Implantable Antennas for Medical Telemetry: Dependence upon Operation Frequency, Tissue Anatomy, and Implantation Site." IJMSTR vol.1, no.1 2013: pp.16-33. http://doi.org/10.4018/ijmstr.2013010102

APA

Kiourti, A. & Nikita, K. S. (2013). Design of Implantable Antennas for Medical Telemetry: Dependence upon Operation Frequency, Tissue Anatomy, and Implantation Site. International Journal of Monitoring and Surveillance Technologies Research (IJMSTR), 1(1), 16-33. http://doi.org/10.4018/ijmstr.2013010102

Chicago

Kiourti, Asimina, and Konstantina S. Nikita. "Design of Implantable Antennas for Medical Telemetry: Dependence upon Operation Frequency, Tissue Anatomy, and Implantation Site," International Journal of Monitoring and Surveillance Technologies Research (IJMSTR) 1, no.1: 16-33. http://doi.org/10.4018/ijmstr.2013010102

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Abstract

Implantable Medical Devices (IMDs) with wireless telemetry functionalities in the radio-frequency (RF) range are recently attracting significant scientific interest for medical prevention, diagnosis, and therapy. One of the most crucial challenges for IMDs is the design of the integrated implantable antenna which enables bidirectional wireless communication between the IMD and exterior monitoring/control equipment. In this paper, a parametric model of a miniature implantable antenna is initially proposed, which can be adjusted to suit any antenna design and implantation scenario requirements in hand. Dependence of the resonance, radiation, and safety performance of implantable antennas upon (a) operation frequency, (b) tissue anatomy and dielectric properties, and (c) implantation site is further studied. Simulations are carried out: (a) at 402, 433, 868 and 915 MHz considering a 13-tissue anatomical head model, (b) at 402 MHz considering five head models (3- and 5-layer spherical, 6-, 10- and 13-tissue anatomical) and seven dielectric parameter scenarios (variations ±20% in the reference permittivity and conductivity values), and (c) at 402 MHz considering 3-layer canonical models of the human head, arm, and trunk. The study provides valuable insight into the design of implantable antennas. Finite Element and Finite Difference Time Domain numerical solvers are used.

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