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Circularly Polarized Ultra-Wideband Radar System for Vital Signs Monitoring

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3 Author(s)
Kevin Khee-Meng Chan ; Electrical and Computer Engineering, University of Alberta, Edmonton, Canada ; Adrian Eng-Choon Tan ; Karumudi Rambabu

A robust contactless vital signs monitoring system using circularly polarized ultra-wideband (UWB) radar is presented. The design of the proposed UWB radar system is based on a time-expanded correlation architecture. The circularly polarized antenna array of the radar has an axial ratio bandwidth from 3 to 10 GHz. Use of circular polarization has demonstrated improved accuracy for vital signs monitoring.

Published in:

IEEE Transactions on Microwave Theory and Techniques  (Volume:61 ,  Issue: 5 )