Physical Bounds on Implant Powering Efficiency Using Body-Conformal WPT Systems
| Autor: | Ronan Sauleau, Denys Nikolayev, Mingxiang Gao, Anja K. Skrivervik, Maxim Zhadobov, Zvonimir Sipus, Icaro V. Soares |
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| Přispěvatelé: | Institut d'Électronique et des Technologies du numéRique (IETR), Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Ecole Polytechnique Fédérale de Lausanne (EPFL), University of Zagreb, Region Bretagne through the project SAD 'EM-NEURO', Nantes Université (NU)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Université de Nantes (UN)-Université de Rennes 1 (UR1) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
fundamental bounds
Computer science biomedical electronics radiation efficiency Transmitter implants wireless power transfer Conformal map biomedical electronics implants fundamental bounds radiation efficiency wireless power transfer Lossy compression Electromagnetic radiation Imaging phantom Power (physics) [SPI]Engineering Sciences [physics] Electronic engineering Wireless power transfer antennas Electrical impedance |
| Zdroj: | IEEE Wireless Power Week (WPW) / IEEE MTT-S Wireless Power Transfer Conference (WPTC) / IEEE PELS Workshop on Emerging Technologies-Wireless Power (WoW) IEEE Wireless Power Week (WPW) / IEEE MTT-S Wireless Power Transfer Conference (WPTC) / IEEE PELS Workshop on Emerging Technologies-Wireless Power (WoW), Jun 2021, San Diego, United States. ⟨10.1109/WPTC51349.2021.9458026⟩ |
| Popis: | International audience; The efficiency of an on-body wireless power transfer system for implant powering is defined by how the electromagnetic energy interacts with the lossy, heterogeneous, and dispersive body tissues. The objective of this study is to discuss the methodology and evaluate the theoretical bounds for the frequency-dependent electromagnetic energy transfer efficiency. We propose a simplified model that uses a finite tissue-equivalent phantom enclosing an implantable receiver surrounded by a medium that represents a transmitter matched to the wave impedance of the body. This model is used to study different cases and evaluate the wireless power transfer efficiency as a function of the operating frequency and implantation depth. The obtained results can be used as a guideline to choose the design parameters and constraints of the on-body power source and gauge its performance against the predicted maximum achievable efficiency. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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