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Next generation neural recording and brain-machine interface (BMI) devices call for high density or distributed systems with more than 1000 recording sites. As the recording site density grows, the device generates data on the scale of several hundred megabits per second (Mbps). Transmitting such large amounts of data induces significant power consumption and heat dissipation for the implanted electronics...
In this paper we analyze a wireless biotelemetry link for an implanted UWB antenna located in the upper arm of a human. We use finite element analysis to characterize the specific absorption rate (SAR) of the surrounding tissue to determine the limits on transmitter power level for safe operation within the FCC restrictions on implanted electronics. We show the tradeoffs of safe transmit power levels...
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