Title :
Circularly Polarized Ultra-Wideband Radar System for Vital Signs Monitoring
Author :
Chan, Kevin Khee-Meng ; Tan, A.E. ; Rambabu, Karumudi
Author_Institution :
Electr. & Comput. Eng., Univ. of Alberta, Edmonton, AB, Canada
Abstract :
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.
Keywords :
antenna arrays; cardiology; haemodynamics; patient monitoring; pneumodynamics; radar antennas; ultra wideband antennas; ultra wideband radar; axial ratio bandwidth; circular polarization; circularly polarized antenna array; circularly polarized ultra-wideband radar system; time-expanded correlation architecture; vital signs monitoring; Contactless vital signs monitoring; circularly polarized antenna; time expansion receiver architecture; ultra-wideband (UWB) radar; wideband antenna feed network;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2013.2253328
