Title :
A 5GHz Double-Sideband Radar Sensor Chip in 0.18
m CMOS for Non-Contact Vital Sign Detection
Author :
Li, Changzhi ; Xiao, Yanming ; Lin, Jenshan
Author_Institution :
Dept. of Electr. & Comput. Eng., Florida Univ., Gainesville, FL
fDate :
7/1/2008 12:00:00 AM
Abstract :
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.
Keywords :
CMOS integrated circuits; cardiology; medical signal detection; medical signal processing; mixed analogue-digital integrated circuits; radar signal processing; double-sideband radar sensor chip; frequency 5 GHz; heartbeat signal detection; local oscillation leakage; mixed-mode/radio frequency CMOS process; noncontact vital sign detection; respiration signal detection; size 0.18 mum; transceiver; CMOS; Cardiopulmonary; double-sideband; heartbeat; low-power; microwave; non-contact; radar; respiration; sensor; vital sign;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2008.925112