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

Volume

1

fYear

2004

fDate

1-5 Sept. 2004

Firstpage

2117

Lastpage

2120

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/IEMBS.2004.1403621

Filename

1403621