An impulse based sensor for medical sensing applications

Author

Wang, X. ; Dinh, A. ; Teng, D. ; Chen, L. ; Ko, S.B. ; Shi, Y. ; Bello-Haas, V. Dal ; Basran, J.

Author_Institution

Department of Electrical and Computer Engineering, University of Saskatchewan, Canada

fYear

2008

fDate

20-25 Aug. 2008

Firstpage

5737

Lastpage

5740

Abstract

This work designs a non-coherent impulse based-transceiver operating in a frequency range of 3.1–10.6GHz for medical sensing applications. The transmitter consists of an ON/OFF Keying data modulator, a Gaussian pulse generator, and a variable gain amplifier to control the transmitting pulse level. The receiver consists of an LNA, a multiplier, an integrator, and a comparator. The IC is designed using 0.18μm CMOS technology with a supply voltage of 1.8V. The simulated pulse width is 0.2ns and the maximum pulse rate is over 1GHz. A heart motion detection performance was demonstrated with high precision for an overall power consumption of 40mW. This design can also be modified to be used in wireless UWB data communications to build a complete low power wireless sensor node.

Keywords

CMOS integrated circuits; CMOS technology; Frequency; Gain; Pulse amplifiers; Pulse generation; Pulse modulation; Space vector pulse width modulation; Transmitters; Wireless sensor networks; Equipment Design; Equipment Failure Analysis; Microwaves; Monitoring, Physiologic; Radar; Reproducibility of Results; Sensitivity and Specificity; Signal Processing, Computer-Assisted; Telemetry; Transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2008. EMBS 2008. 30th Annual International Conference of the IEEE

Conference_Location

Vancouver, BC

ISSN

1557-170X

Print_ISBN

978-1-4244-1814-5

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2008.4650517

Filename

4650517