Abstract
This paper presents a 60-GHz CMOS direct-conversion Doppler radar RF sensor with a clutter canceller for single-antenna noncontact human vital-signs detection. A high isolation quasi-circulator (QC) is designed to reduce the transmitting (Tx) power leakage (to the receiver). The clutter canceller performs cancellation for the Tx leakage power (from the QC) and the stationary background reflection clutter to enhance the detection sensitivity of weak vital signals. The integration of the 60-GHz RF sensor consists of the voltage-controlled oscillator, divided-by-2 frequency divider, power amplifier, QC, clutter canceller (consisting of variable-gain amplifier and 360° phase shifter), low-noise amplifier, in-phase/quadrature-phase sub-harmonic mixer, and three couplers. In the human vital-signs detection experimental measurement, at a distance of 75 cm, the detected heartbeat (1-1.3 Hz) and respiratory (0.35-0.45 Hz) signals can be clearly observed with a 60-GHz 17-dBi patch-array antenna. The RF sensor is fabricated in 90-nm CMOS technology with a chip size of 2 mm × 2 mm and a consuming power of 217 mW.
| Original language | English |
|---|---|
| Article number | 7434080 |
| Pages (from-to) | 1018-1028 |
| Number of pages | 11 |
| Journal | IEEE Transactions on Microwave Theory and Techniques |
| Volume | 64 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2016 Apr 1 |
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All Science Journal Classification (ASJC) codes
- Radiation
- Condensed Matter Physics
- Electrical and Electronic Engineering
Cite this
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A Fully Integrated 60-GHz CMOS Direct-Conversion Doppler Radar RF Sensor with Clutter Canceller for Single-Antenna Noncontact Human Vital-Signs Detection. / Kuo, Hsin Chih; Lin, Chien Chih; Yu, Chun Han; Lo, Pei Hua; Lyu, Jhin Ying; Chou, Chien Chang; Chuang, Huey-Ru.
In: IEEE Transactions on Microwave Theory and Techniques, Vol. 64, No. 4, 7434080, 01.04.2016, p. 1018-1028.Research output: Contribution to journal › Article
TY - JOUR
T1 - A Fully Integrated 60-GHz CMOS Direct-Conversion Doppler Radar RF Sensor with Clutter Canceller for Single-Antenna Noncontact Human Vital-Signs Detection
AU - Kuo, Hsin Chih
AU - Lin, Chien Chih
AU - Yu, Chun Han
AU - Lo, Pei Hua
AU - Lyu, Jhin Ying
AU - Chou, Chien Chang
AU - Chuang, Huey-Ru
PY - 2016/4/1
Y1 - 2016/4/1
N2 - This paper presents a 60-GHz CMOS direct-conversion Doppler radar RF sensor with a clutter canceller for single-antenna noncontact human vital-signs detection. A high isolation quasi-circulator (QC) is designed to reduce the transmitting (Tx) power leakage (to the receiver). The clutter canceller performs cancellation for the Tx leakage power (from the QC) and the stationary background reflection clutter to enhance the detection sensitivity of weak vital signals. The integration of the 60-GHz RF sensor consists of the voltage-controlled oscillator, divided-by-2 frequency divider, power amplifier, QC, clutter canceller (consisting of variable-gain amplifier and 360° phase shifter), low-noise amplifier, in-phase/quadrature-phase sub-harmonic mixer, and three couplers. In the human vital-signs detection experimental measurement, at a distance of 75 cm, the detected heartbeat (1-1.3 Hz) and respiratory (0.35-0.45 Hz) signals can be clearly observed with a 60-GHz 17-dBi patch-array antenna. The RF sensor is fabricated in 90-nm CMOS technology with a chip size of 2 mm × 2 mm and a consuming power of 217 mW.
AB - This paper presents a 60-GHz CMOS direct-conversion Doppler radar RF sensor with a clutter canceller for single-antenna noncontact human vital-signs detection. A high isolation quasi-circulator (QC) is designed to reduce the transmitting (Tx) power leakage (to the receiver). The clutter canceller performs cancellation for the Tx leakage power (from the QC) and the stationary background reflection clutter to enhance the detection sensitivity of weak vital signals. The integration of the 60-GHz RF sensor consists of the voltage-controlled oscillator, divided-by-2 frequency divider, power amplifier, QC, clutter canceller (consisting of variable-gain amplifier and 360° phase shifter), low-noise amplifier, in-phase/quadrature-phase sub-harmonic mixer, and three couplers. In the human vital-signs detection experimental measurement, at a distance of 75 cm, the detected heartbeat (1-1.3 Hz) and respiratory (0.35-0.45 Hz) signals can be clearly observed with a 60-GHz 17-dBi patch-array antenna. The RF sensor is fabricated in 90-nm CMOS technology with a chip size of 2 mm × 2 mm and a consuming power of 217 mW.
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U2 - 10.1109/TMTT.2016.2536600
DO - 10.1109/TMTT.2016.2536600
M3 - Article
AN - SCOPUS:84977963092
VL - 64
SP - 1018
EP - 1028
JO - IEEE Transactions on Microwave Theory and Techniques
JF - IEEE Transactions on Microwave Theory and Techniques
SN - 0018-9480
IS - 4
M1 - 7434080
ER -