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A 5GHz Double-Sideband Radar Sensor Chip in 0.18 \mu m CMOS for Non-Contact Vital Sign Detection

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3 Author(s)
Changzhi Li ; Dept. of Electr. & Comput. Eng., Florida Univ., Gainesville, FL ; Yanming Xiao ; Jenshan Lin

A 5 GHz double-sideband radar sensor chip for non-contact vital sign detection was designed and fabricated in UMC 0.18 mum mixed-mode/radio frequency CMOS process. The transceiver was designed with a differential architecture. Measurements show that it has over 1 GHz tuning range, and can successfully detect both the respiration and the heartbeat signals of a human subject. It is also shown that the differential architecture has the advantage of reducing local oscillation leakage. The 5 GHz double-sideband system can avoid null detection point by frequency tuning.

Published in:

IEEE Microwave and Wireless Components Letters  (Volume:18 ,  Issue: 7 )