Headband Antenna for Wireless Power Transfer to Millimeter-Sized Neural Implants with Minimal Misalignment Effects

Shahbaz Ahmed, Lauri Sydänheimo, Leena Ukkonen, Toni Björninen

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

    Abstract

    We present a headband loop antenna for wireless power transfer to multiple IMDs located in the cranial cavity at the depth of 10 mm from the skin. We characterize the wireless power transfer link in terms of the power gain and the power delivered to the IMD, when maximum SAR compliant transmission power is fed to the headband antenna at frequency of 5 MHz. We also consider two types of the misalignments i.e. lateral and angular, between the IMD antenna and the headband antenna and discuss their impact on the transducer gain, impedance matching and on the power delivered to the IMD.

    Original languageEnglish
    Title of host publication14th European Conference on Antennas and Propagation, EuCAP 2020
    PublisherIEEE
    Number of pages4
    ISBN (Electronic)9788831299008
    DOIs
    Publication statusPublished - 1 Mar 2020
    Publication typeA4 Article in conference proceedings
    EventEuropean Conference on Antennas and Propagation - Copenhagen, Denmark
    Duration: 15 Mar 202020 Mar 2020

    Publication series

    Name14th European Conference on Antennas and Propagation, EuCAP 2020

    Conference

    ConferenceEuropean Conference on Antennas and Propagation
    Country/TerritoryDenmark
    CityCopenhagen
    Period15/03/2020/03/20

    Keywords

    • energy harvesting
    • implantable antenna
    • intracranial implants
    • power transfer efficiency.
    • wireless inductive powering

    Publication forum classification

    • Publication forum level 1

    ASJC Scopus subject areas

    • Computer Networks and Communications
    • Signal Processing
    • Instrumentation
    • Radiation

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