@inproceedings{0bc5da5a533e448eb9e03a267c618bf8,
title = "Field Shaping for Enhanced Wireless Power Transfer in Misaligned Biomedical Inductive Links",
abstract = "Low frequency inductive links provide an attractive method of safely powering biomedical implants. Weakly coupled links with millimetre scale receivers can use ferrites to enhance link coupling. However, axial demagnetisation of these cores results in directional sensitivity, making power transfer intolerant of receiver angular misalignment. This paper presents a magnetic field-shaping transmitter array that enhances coupling and misalignment tolerance, increasing transmitter coverage by 150\% for completely misaligned receivers.An air core transmitter is designed and its field shaping distribution for a particular excitation mode is measured.",
keywords = "Biomedical implants, demagnetisation, field shaping, inductive coupling, miniaturised receivers, misalignment tolerance, power transfer efficiency, PTE, transmitter array, weakly coupled, wireless power transfer, WPT",
author = "Cian O'donnell and Jaeger, \{Herman Alexander\} and Ray Burke and Daniel O'hare",
note = "Publisher Copyright: {\textcopyright} 2025 IEEE.; 2025 IEEE Wireless Power Technology Conference and Expo, WPTCE 2025 ; Conference date: 03-06-2025 Through 06-06-2025",
year = "2025",
doi = "10.1109/WPTCE62521.2025.11062288",
language = "English",
series = "2025 IEEE Wireless Power Technology Conference and Expo, WPTCE 2025 - Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2025 IEEE Wireless Power Technology Conference and Expo, WPTCE 2025 - Proceedings",
address = "United States",
}