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A low-power FM transmitter for use in neural recording applications
Nathan Neihart1, Reid Harrison
1Department of Electrical and Computer Engineering, University of Utah, Salt Lake City, UT, USA.
Abstract:
We present a low power FM transmitter for use in neural recording telemetry. The transmitter consists of a low noise biopotential amplifier and a voltage controlled oscillator used to transmit the amplified neural signals at a frequency of 433 MHz. The circuit is powered through a transcutaneous, inductive link. The power consumption of the transmitter is measured to be 465 microW. Using a 1/8-wavelength monopole antenna, a received power level was measured to be -54.5 dBm at a distance of one meter.
