Inductive and ultrasonic wireless power transmission to biomedical implants

Ahmed Ibrahim, Miao Meng, Mehdi Kiani

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Scopus citations

    Abstract

    This paper presents an accurate comparison between the performance of inductive and ultrasonic links for wireless power transmission (WPT) to biomedical implants with different sizes and implantation depth. These links' performances are evaluated based on the power transmission efficiency (PTE) at their optimized operation frequency (fp) to find out which WPT method is more efficient and robust. The geometry of several sets of inductive and ultrasonic links along with their fp have been optimized for different separation distances (d12) between the transmitter (Tx) and receiver (Rx) and two Rx diameters (D02) to achieve the highest PTE. The simulation results show that the ultrasonic link outperforms the inductive link when the Rx has D02 of 1.2 mm and implanted deep inside the tissue. However, for an Rx with the D02 of 5 mm and above, the inductive link achieves higher PTE, particularly at shorter d12 of 5 mm (46% vs. 40%) and 10 mm (40% vs. 28%). The simulated misalignment results show that the ultrasonic link is more prone to misalignments greater than 1 mm compared to its inductive counterpart.

    Original languageEnglish (US)
    Title of host publicationIEEE International Symposium on Circuits and Systems
    Subtitle of host publicationFrom Dreams to Innovation, ISCAS 2017 - Conference Proceedings
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    ISBN (Electronic)9781467368520
    DOIs
    StatePublished - Sep 25 2017
    Event50th IEEE International Symposium on Circuits and Systems, ISCAS 2017 - Baltimore, United States
    Duration: May 28 2017May 31 2017

    Publication series

    NameProceedings - IEEE International Symposium on Circuits and Systems
    ISSN (Print)0271-4310

    Other

    Other50th IEEE International Symposium on Circuits and Systems, ISCAS 2017
    CountryUnited States
    CityBaltimore
    Period5/28/175/31/17

    All Science Journal Classification (ASJC) codes

    • Electrical and Electronic Engineering

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