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Magnetic in-body and on-body antennas operating at 40MHz and near field magnetic induction link budget

El Hatmi, Fatiha and Grzeskowiak, Marjorie and Protat, Stéphane and Picon, Odile Magnetic in-body and on-body antennas operating at 40MHz and near field magnetic induction link budget. (2012) In: 2012 6th European Conference on Antennas and Propagation (EuCAP), 26 March 2012 - 30 March 2012 (Prague, Czech Republic).

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Official URL: https://doi.org/10.1109/EuCAP.2012.6206000


Magnetic antennas are supposed to be less perturbed than electrical antennas in the presence of human body. In this study, initially transmitter spiral coil ingestible capsule (in-body) antenna and receiver magnetic square coil (on-body) antenna have been designed separately at 40MHz with a matching system. Then, a near field magnetic induction link budget has been established in the presence of a human body model. The efficiency (received power/transmitted power) of the magnetic induction link is found to be better than that of an electromagnetic link when both TX and RX antennas are opposite to each other. This phenomenon facilitates to minimize the power consumption and hence to increase the battery life of the wireless capsule. Furthermore, we observe that the magnetic link is efficient enough when the TX antenna, located at any position is randomly oriented while RX antenna is oriented horizontally and vertically to the human body surface.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to the IEEE (Institute of Electrical and Electronics Engineers). This paper is available at : https://ieeexplore.ieee.org/document/6206000 “© 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
HAL Id:hal-02191754
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:Other partners > Conservatoire National des Arts et Métiers - CNAM (FRANCE)
Other partners > Ecole de l'Innovation Technologique - ESIEE PARIS (FRANCE)
Other partners > Université Paris-Est Marne-La-Vallée - UPEM (FRANCE)
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Deposited On:22 Jul 2019 14:59

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