A biosafety comparison between capacitive and inductive coupling in biomedical implants

Biomedical electronics; Biohazards; Electromagnetic coupling; Biomedical implants; Capacitive and inductive couplings; Capacitive couplings; Electromagnetic simulation; Implantable biomedical devices; Inductive couplings; Specific absorption rate; Electromagnetic induction

Abstract :

[en] This letter investigates the link efficiencies and ensuing biohazards when capacitive versus inductive coupling is used to power biomedical implants electromagnetically. Electromagnetic simulations illustrate that the power link efficiency of capacitive coupling decays slower as a function of the distance between plates compared to inductive coupling. Specifically, the case designs show that, using a transmitted power of 1 W at 5 MHz, capacitive coupling produces a 10-g averaged SAR value of 1.63 W/kg compared to 2.39 W/kg for an inductive coupling of the same dimension. © 2002-2011 IEEE.

Disciplines :

Electrical & electronics engineering

Author, co-author :

Al-Kalbani, A. I.; Monash University, Dept. of Electrical and Computer Systems Engineering, Melbourne, VIC 3800, Australia

Yuce, M. R.; Monash University, Dept. of Electrical and Computer Systems Engineering, Melbourne, VIC 3800, Australia

Redouté, Jean-Michel ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes microélectroniques intégrés

Language :

English

Title :

A biosafety comparison between capacitive and inductive coupling in biomedical implants

Publication date :

2014

Journal title :

IEEE Antennas and Wireless Propagation Letters

ISSN :

1536-1225

eISSN :

1548-5757

Publisher :

Institute of Electrical and Electronics Engineers Inc.

Volume :

Pages :

1168-1171

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 25 September 2018

Statistics

Number of views

58 (2 by ULiège)

Number of downloads

0 (0 by ULiège)

More statistics

Scopus citations^®

Scopus citations^®
without self-citations

OpenCitations

Bibliography

ICNIRP, "ICNIRP guidelines for limiting exposure to time-varying electric, magnetic and electromagnetic fields (up to 300 GHz)," Health Phys., vol. 74, no. 4, pp. 494-522, 1998
A. M. Sodaga,K. D.Wise, and K.Najafi, "A wireless implantable microsystem for multichannel neural recording," IEEE Trans. Microw. Theory Tech., vol. 57, no. 10, pp. 2565-2573, Oct. 2009
G. Simard,M. Sawan, and D. Massicotte, "High-speed OQPSK and efficient power transfer through inductive link for biomedical implants," IEEE Trans. Biomed. Circuits Syst., vol. 4, no. 3, pp. 192-200, Jun. 2010
R. R. Harrison, "Designing efficient inductive power links for implantable devices," in Proc. IEEE Int. Symp. Circuits Syst., May 2007, pp. 2080-2083 (Pubitemid 47448949)
A. M. Sodagar and P. Amiri, "Capacitive coupling for power and data telemetry to implantable biomedical microsystems," in Proc. IEEE Int. EMBS Conf. Neural Eng., May 2009, pp. 411-414
S. Gabriel, R. W. Lau, and C. Gabriel, "The dielectric properties of biological tissues: II. Measurements in the frequency range 10 Hz to 20 GHz," Phys. Med. Biol., vol. 41, pp. 2251-2269, 1996 (Pubitemid 26376902)
A. I. Al-Kalbani, M. R. Yuce, and J.-M. Redouté, "Electromagnetic interference in brain implants using multiple coils: Biosafety and data communication performance," IEEE Trans. Electromagn. Compat., vol. 56, no. 2, pp. 490-493, Apr. 2014.