Title :
A low-power FM transmitter for use in neural recording applications
Author :
Neihart, Nathan M. ; Harrison, Reid R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Utah Univ., 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 μW. Using a 1/8-wavelength monopole antenna, a received power level was measured to be -54.5 dBm at a distance of one meter.
Keywords :
bioelectric potentials; biomedical telemetry; neurophysiology; radio transmitters; voltage-controlled oscillators; 433 MHz; 465 muW; low noise biopotential amplifier; low-power FM transmitter; monopole antenna; neural recording telemetry; transcutaneous inductive link; voltage controlled oscillator; Antenna measurements; Circuit noise; Energy consumption; Frequency; Low-noise amplifiers; Neurotransmitters; Power measurement; Telemetry; Transmitters; Voltage-controlled oscillators; RF telemetry; low power circuits; neural recording; transmitter;
Conference_Titel :
Engineering in Medicine and Biology Society, 2004. IEMBS '04. 26th Annual International Conference of the IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-8439-3
DOI :
10.1109/IEMBS.2004.1403621
