Software configurable 5.8 GHz radar sensor receiver chip in 0.13 &amp;#x00B5;m CMOS for non-contact vital sign detection

Li, Changzhi; Yu, Xi; Li, Dong; Ran, Lixin; Lin, Jenshan

doi:10.1109/rfic.2009.5135498

Cited by 13 publications

(14 citation statements)

References 6 publications

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“…5) the sampling rate is 50 Hz and the measured baseband noise voltage is around 1 mV rms , corresponding to a baseband SNR around 5 (14 dB). This result is consistent with [1] showing that even the noise figure of the system could be high around the band of interest due to the large CMOS flicker noise, the vital sign detection is still achievable by proper design of the system.…”

Section: B Non-contact Heartbeat Detectionsupporting

confidence: 90%

“…Lumped-elementmodeled, L-shaped inductors are used extensively to achieve a compact LNA layout (0.26 mm 2 ). To minimize the flicker noise at baseband, two passive IF mixers with large transistor sizes are used for I/Q channels [1]. The single-balanced active RF mixer with a simulated gain of 0 dB serves as single-ended to differential conversion and form the indirect downconversion architechture.…”

Section: A Transceiver Circuitsmentioning

confidence: 99%

“…Recent progress on non-contact vital sign and vibration detections has been made based on micorwave Doppler radar system [1]- [4]. Double-sideband architecture with frequency tuning [3] is used to eliminate the null detection point which occurs every λ/4 from the radar.…”

Section: Introductionmentioning

confidence: 99%

“…Double-sideband architecture with frequency tuning [3] is used to eliminate the null detection point which occurs every λ/4 from the radar. Moreover, a 5.8 GHz CMOS quadrature receiver with complex signal demodulation (CSD) solving the null point issue was developed in [1] [2] for non-contact vital sign detection.…”

Section: Introductionmentioning

confidence: 99%

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A flip-chip-packaged and fully integrated 60 GHz CMOS micro-radar sensor for heartbeat and mechanical vibration detections

Kao

Chen

Yan

et al. 2012

2012 IEEE Radio Frequency Integrated Circuits Symposium

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A 60 GHz micro-radar in 90 nm CMOS for non-contact vital sign and small vibration detections was designed and tested. A quadrature receiver embedded in the indirect up-and down-conversion architechture solves the null detection point issue and increases the robustness of the millimeter wave system. In the 60 GHz core, lumpedelement-modeled passive components are extensively used to achieve a compact layout (0.73 mm 2 ), and a 36 dB downconversion gain at 55 GHz. Using low-cost single-patch PCB antennas, flip-chip packaging of the CMOS chip demonstrates high level of system integration. First pass success is achieved as the human heartbeat and a small mechanical vibration with a displacement of 20 μm can be detected at 0.3 m away. With a roughly one-tenth patch antenna size compared to previously reported works, the 60 GHz CMOS integrated micro-radar can be readily embedded in various portable devices to detect vary small vibrations and used for many applications.Index Terms -CMOS, Doppler radar, flip chip, millimeter wave integrated circuits, medical signal detection, patch antennas, sensor systems, frequency measurement.

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Section: B Non-contact Heartbeat Detectionsupporting

confidence: 90%

Section: A Transceiver Circuitsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A flip-chip-packaged and fully integrated 60 GHz CMOS micro-radar sensor for heartbeat and mechanical vibration detections

Kao

Chen

Yan

et al. 2012

2012 IEEE Radio Frequency Integrated Circuits Symposium

Self Cite

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“…Using an instrument-based digital-IF Doppler radar sensor [4], a series of experiments are carried out to investigate the effectiveness of the proposed approach. Experimental results show that, apart from the small-scale motion of the human cardiac motion can be sensitively detected, the large-scale motion of human walk in a range of 5 meters can also be properly monitored.…”

Section: Introductionmentioning

confidence: 99%

Non-contact detection of Doppler bio-signals based on gradient decent and extended DACM algorithms

Qiao

et al. 2013

2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applicati

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In this paper, we present a Doppler radar sensor based approach capable of detecting both small-and large-scale biological motions. To fully recover the time domain motion information from backscattered microwave signals, the gradient descent and the extended DACM algorithms are utilized to solve the problems caused by DC offset and phase wrapping issues. Experimental results show that both Doppler bio-signals of the small-scale human cardiac motion and the large-scale human walk can be accurately detected. The proposed approach provides a generalized method for detecting different Doppler bio-signals in biomedical and healthcare applications.

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Doppler Radar Noncontact Vital Sign Monitoring

et al. 2014

Neural Computation, Neural Devices, and Neural Prosthesis

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Software configurable 5.8 GHz radar sensor receiver chip in 0.13 µm CMOS for non-contact vital sign detection

Cited by 13 publications

References 6 publications

A flip-chip-packaged and fully integrated 60 GHz CMOS micro-radar sensor for heartbeat and mechanical vibration detections

A flip-chip-packaged and fully integrated 60 GHz CMOS micro-radar sensor for heartbeat and mechanical vibration detections

Non-contact detection of Doppler bio-signals based on gradient decent and extended DACM algorithms

Doppler Radar Noncontact Vital Sign Monitoring

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