Specific absorption rate distribution on a human head model from inductive power coils

David C. Ng, Xiaoting Wang, Gordana K. Felic, Shun Bai, Clive S. Boyd, Mark Halpern, Efstratios Skafidas

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

6 Citations (Scopus)

Abstract

We are interested in the amount of power that is absorbed by the eye and surrounding head tissue due to operation of inductive coils which are placed in proximity to the eye. These coils provide power to a retinal implant device wirelessly by means of electromagnetic induction. Using numerical simulation, we computed the specific absorption rate (SAR) due to the coils which are expected to deliver an average of 50 mW of power to the implanted device. By varying the distance of the coil from the eye and its operation frequency, we are able to find the dependence of SAR due to these parameters. From the result, we found that the maximum SAR value to be below 1 mW/kg. This is several orders of magnitude lower than the safety limits set by the Federal Communications Commission.

Original languageEnglish
Title of host publicationProceedings of EMC Europe 2011 York - 10th International Symposium on Electromagnetic Compatibility
Pages79-83
Number of pages5
Publication statusPublished - 2011
Externally publishedYes
Event10th International Symposium on Electromagnetic Compatibility, EMC Europe 2011 - York, United Kingdom
Duration: 26 Sep 201130 Sep 2011

Publication series

NameProceedings of EMC Europe 2011 York - 10th International Symposium on Electromagnetic Compatibility

Conference

Conference10th International Symposium on Electromagnetic Compatibility, EMC Europe 2011
Country/TerritoryUnited Kingdom
CityYork
Period26/09/1130/09/11

Keywords

  • inductive coil
  • retinal implant
  • specific absorption rate (SAR)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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