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Ukkonen, Leena
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Publications (6/6 displayed)
- 2019Impact of anatomical variability on the wireless power transfer to intra-abdominal implantscitations
- 2016Brush-painting and photonical sintering of copper and silver inks on cotton fabric to form antennas for wearable ultra-high-frequency radio-frequency identification tagscitations
- 2016Reliability of Passive UHF RFID Copper Tags on Plywood Substrate in High Humidity Conditionscitations
- 2016Brush-Painting and Photonic Sintering of Copper Oxide and Silver Inks on Wood and Cardboard Substrates to Form Antennas for UHF RFID Tagscitations
- 2016Experimental study on brush-painted passive RFID-based humidity sensors embedded into plywood structurescitations
- 2015Heat-sintered and photonically sintered brush-painted silver UHF RFID tags on plywood substrates
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document
Impact of anatomical variability on the wireless power transfer to intra-abdominal implants
Abstract
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.