Title :
0.25 /spl mu/m CMOS and BiCMOS single-chip direct-conversion Doppler radars for remote sensing of vital signs
Author :
Droitcour, A.D. ; Boric-Lubecke, O. ; Lubecke, V.M. ; Jenshan Lin
Author_Institution :
Center for Integrated Syst., Stanford Univ., CA, USA
Abstract :
A fully integrated direct conversion Doppler radar that detects heart and respiration movement at a distance of 50 cm is described. The 1.6 GHz transceiver is implemented in both CMOS and BiCMOS technologies, with each chip occupying 14 mm/sup 2/ using a 0.25 μm silicon processes. The effects on system sensitivity of phase noise at small offset frequencies with range correlation are assessed.
Keywords :
BiCMOS analogue integrated circuits; CMOS analogue integrated circuits; UHF integrated circuits; biomedical electronics; biomedical equipment; cardiology; elemental semiconductors; integrated circuit noise; patient monitoring; phase noise; pneumodynamics; radar applications; radar equipment; remote sensing by radar; silicon; transceivers; 0.25 micron; 1.6 GHz; 50 cm; BiCMOS process; CMOS process; Si; critical health parameters monitoring; direct-conversion Doppler radar; heart rate sensor; microwave Doppler radar; noninvasive sensor; phase noise; portable device; remote sensing; respiration movement; respiration rate sensor; single-chip Doppler radars; system sensitivity; transceiver; vital signs sensing; BiCMOS integrated circuits; CMOS process; CMOS technology; Doppler radar; Frequency; Heart; Phase noise; Radar detection; Silicon; Transceivers;
Conference_Titel :
Solid-State Circuits Conference, 2002. Digest of Technical Papers. ISSCC. 2002 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-7335-9
DOI :
10.1109/ISSCC.2002.993075
