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- W2485677847 abstract "We present an 8.7 mm × 10 mm fully passive brain implant, capable of wireless acquisition of neuropotentials down to 20 μV <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>pp</sub> , viz. three times lower than before. The implant receives a 2.4-GHz carrier signal from the external interrogator and mixes it with the neurosignals having a frequency of f <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>neuro</sub> . The mixing products (4.8 GHz ± f <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>neuro</sub> ) are then transmitted back to the external interrogator and further demodulated to retrieve f <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>neuro</sub> . Previous work demonstrated a 15 mm × 16 mm wireless and fully passive brain implant, capable of detecting emulated neuropotentials as low as 63 μVpp . In this letter, we present a new neurosensing system with the following improved features: 1) 63% smaller implant; 2) 98% smaller interrogator antenna; 3) compliance with the strictest Federal Communications Commission standards for patient safety; 4) elimination of lumped components within the implant to preserve biocompatibility; and 5) three-times sensitivity improvement. This high sensitivity implies reading of most neural signals generated by the human brain." @default.
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- W2485677847 date "2017-01-01" @default.
- W2485677847 modified "2023-10-11" @default.
- W2485677847 title "Miniaturized Fully Passive Brain Implant for Wireless Neuropotential Acquisition" @default.
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- W2485677847 doi "https://doi.org/10.1109/lawp.2016.2594590" @default.
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