Inductive resonant coils for biomedical wireless power transmission

Yu Hsien Li, Yu Yu Fan, Po Hung Chen

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

Abstract

This study analyzes wireless transmission efficiency in magnetic resonance topology. In wireless power transmission systems, the overall efficiency is limited by the power consumption of coils. To improve the efficiency of wireless power transmission systems, this study proposes a suitable design for implantable devices by studying the shapes of coils, the distance between them, and the transmission media. Results show that efficiency declines as the distance between coils increases. Good efficiency is achieved under long-distance transmission when coils with large radii are used in transmitters. At short distances, small coils achieve better efficiency than large coils. The measurement results under an emulated human body experiment show that skin thickness is the key factor in transmission efficiency. The transmission efficiency under a pig skin thickness of 9 mm is 0.799% lower than that under the air medium.

Original languageEnglish
Title of host publication2020 IEEE Wireless Power Transfer Conference, WPTC 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages284-287
Number of pages4
ISBN (Electronic)9781728142388
DOIs
StatePublished - 15 Nov 2020
Event2020 IEEE Wireless Power Transfer Conference, WPTC 2020 - Seoul, Korea, Republic of
Duration: 15 Nov 202019 Nov 2020

Publication series

Name2020 IEEE Wireless Power Transfer Conference, WPTC 2020

Conference

Conference2020 IEEE Wireless Power Transfer Conference, WPTC 2020
CountryKorea, Republic of
CitySeoul
Period15/11/2019/11/20

Keywords

  • 6.78MHz
  • Coil design
  • Coil-to-coil efficiency
  • Human body
  • Implantable biomedical devices
  • Magnetic resonance
  • Wireless power transmission

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