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Impact of anatomical variability on the wireless power transfer to intra-abdominal implants

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


Original languageEnglish
Title of host publicationProceedings of the 2019 IEEE Asia-Pacific Microwave Conference, APMC 2019
Number of pages3
ISBN (Electronic)9781728135175
Publication statusPublished - 10 Dec 2019
Publication typeA4 Article in a conference publication
EventIEEE Asia-Pacific Microwave Conference - Singapore, Singapore, Singapore
Duration: 10 Dec 201913 Dec 2019


ConferenceIEEE Asia-Pacific Microwave Conference
Abbreviated titleAPMC
Internet address


We study the impact of the anatomical variations of the human body model on the wireless power transfer link for passive intra-abdominal implants. We categorically analyze the power transfer link for four body sizes ranging from 21 to 36 inches of radial dimensions with an implant depth of 48.5 mm to 101 mm with promising received power level corresponding to maximum SAR compliant transmission power fed to an around-the-body transmitting antenna. In this assessment, the transducer power gain of the wireless link varied from-2.65 to-10.84 dB. We also evaluated the robustness of the system subject to ±20 percent variation in the relative permittivity and loss tangent and the results show the impact to be only ±0.26 dB variation in the transducer gain. Lastly, we analyze the performance of the system under various degrees of angular misalignment between the transmitter-receiver antennas.

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