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Sub-GHz Inductive Power Transmission from Helical Coils for Implanted Medical Devices

Abstract : This paper presents some measurements and simulations results in which small helicoidally coils are designed, in the idea to provide a RF power transfer for implanted medical devices (IMDs). In such context, the coils should be very small if they are implanted within devices, or even if they are used as an alternate solution combined with UHF antennas (ex. PIFA). The influence of the body and the mandatory small size of the coils bring a difficult technological lock concerning efficiency and measurements accuracy which must validate our simulations. In this paper, a deembedding technique is used to take into account the dedicated test fixture, and further works will investigate the electromagnetic influence of a liquid phantom, modeling the muscle tissue.
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Antoine Diet, Koulouridis Stavros, Yann Le Bihan, Quang-Trung Luu, Olivier Meyer, et al.. Sub-GHz Inductive Power Transmission from Helical Coils for Implanted Medical Devices. 2017 IEEE International Workshop on Antenna Technology (iWAT 2017), Mar 2017, Athènes, Greece. ⟨10.1109/iwat.2017.7915348⟩. ⟨hal-01633015⟩



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