韓國電磁波學會論文誌第 20 卷第 12 號 2009 年 12 月. 1970, cm., RF, [1],[2]. (CW: Continuous-Wave), [2]. GHz,., Ka- [3] 5.8 GHz [4], 2.4 GHz [5]. 2.4 GHz ISM (Industri

Size: px

Start display at page:

Download "韓國電磁波學會論文誌第 20 卷第 12 號 2009 年 12 月. 1970, cm., RF, [1],[2]. (CW: Continuous-Wave), [2]. GHz,., Ka- [3] 5.8 GHz [4], 2.4 GHz [5]. 2.4 GHz ISM (Industri"

미선 묘
6 years ago
Views:

1 韓國電磁波學會論文誌第 20 卷第 12 號 2009 年 12 月論文 PLL 2.4 GHz A 2.4 GHz Bio-Radar System with Small Size and Improved Noise Performance Using Single Circular-Polarized Antenna and PLL 장병준 박재형 육종관 문준호 이경중 Byung-Jun Jang Jae-Hyung Park* Jong-Gwan Yook* Jun-Ho Moon** Kyoung-Joung Lee*** 요약 2.4 GHz PLL. 90,,,,., annular-ring, mm 2., PLL,. 50 cm. Abstract In this paper, we design a 2.4 GHz bio-radar system that can detect human heartbeat and respiration signals with small size and improved noise performance using single circular-polarized antenna and phase-locked loop. The demonstrated bio-radar system consists of single circular-polarized antenna with 90 hybrid, low-noise amplifier, power amplifier, voltage-controlled oscillator with phase-locked loop circuits, quadrature demodulator and analog circuits. To realize compact size, the printed annular ring stacked microstrip antenna is integrated on the transceiver circuits, so its dimension is just mm 2. Also, to improve signal-to-noise-ratio performance by phase noise due to transmitter leakage signal, the phase-locked loop circuit is used. The measured results show that the heart rate and respiration accuracy was found to be very high for the distance of 50 cm without the additional digital signal processing. Key words : Bio-Radar, Doppler Radar, Single Antenna, Annular Ring, PLL, Phase Noise, Range Correlation, Heart Rate, Respiration. 서론 u- IT-BT 2009 ( ). (Department of Electrical Engineering, Kookmin University) * (Department of Electrical and Electronic Engineering, Yonsei University) ** (PhilTech) *** (Department of Biomedical Engineering, Yonsei University) : :

2 韓國電磁波學會論文誌第 20 卷第 12 號 2009 年 12 月. 1970, cm., RF, [1],[2]. (CW: Continuous-Wave), [2]. GHz,., Ka- [3] 5.8 GHz [4], 2.4 GHz [5]. 2.4 GHz ISM (Industrial, Scientific and Medical) FR GHz 12 cm. 2.4 GHz. (CP: Circular Polarization). (RHCP: Right-Handed Circular Polarization), (LHCP: Left-Handed Circular Polarization) [6]., RHCP, LHCP 90 (hybrid)., 90 hybrid. [7] [8] 20 db range correlation, (SNR: Signal-to-Noise Ratio). (PLL: Phase Locked Loop), PLL [7] [8]. 2, 3. 4 PLL, 5.. 제안된바이오레이더시스템구조및동작원리 1. annular ring 90 hybrid, RF, (BB: Base- Band) (DSP: Digital Signal Processor), RF PLL (VCO: Voltage-Controlled Oscillator), (LNA: Low Noise Amplifier), (PA: Power Amplifier), (BPF: Band-Pass Filter) I/Q(In-phase/Quadrature-phase). OP AMP, PC. 1 VCO I/Q, (TX) 90 hybrid (RX) 1326

4 GHz ISM. 그림 2. - Fig. 2. Operating principle and transmitter-receiver isolation mechanism of proposed circular-polarized bio-radar. 그림 3. Annular ring (a=7.

3 PLL 2.4 GHz.. 제안된바이오레이더시스템설계 3-1 안테나설계 그림 1. - Fig. 1. Proposed circular-polarized bio-radar architecture with single antenna.. 90 hybrid 2., 90 hybrid TX, 90, RHCP LHCP 90 hybrid RX, TX 180., (probe) annular ring. 3 3 FR hybrid, 3.2 mm 1 mm. TM 11 Q [9]. 2.4 GHz ISM. 그림 2. - Fig. 2. Operating principle and transmitter-receiver isolation mechanism of proposed circular-polarized bio-radar. 그림 3. Annular ring (a=7.1 mm, b=13 mm, c=10.65 mm, H= 3.2 mm, H_sub=1 mm, G_out=1 mm, G_in= 0.7 mm) Fig. 3. Geometry of annular ring stacked microstrip antenna(a=7.1 mm, b=13 mm, c=10.65 mm, H= 3.2 mm, H_sub=1 mm, G_out=1 mm, G_in=0.7 mm). 1327

4 韓國電磁波學會論文誌第 20 卷第 12 號 2009 年 12 月,, (G_out-G_in).. c 50 Ω. 3., hybrid, 4., 10 db 70 MHz ISM., RHCP LHCP 90 hybrid., 90 hybrid, hybrid (a) (b) (a) Transmitter mode (b) Receiver mode 그림 5. Annular ring Fig. 5. Measured radiation pattern of annular ring stacked microstrip antenna. 2.4 GHz 22 db,. 5 RHCP LHCP., RHCP, 50 Ω LHCP 50 Ω. RHCP LHCP 5(a), 5(b). RHCP, LHCP. RHCP LHCP 3 db , 10 db. 3-2 송수신부설계 그림 4. Annular ring S- Fig. 4. Measured S-parameter of annular ring stacked microstrip antenna.. PLL, VCO [8]. LO Maxim MAX2750 VCO IC, Analog Device Fractional-N ADF4153. VCO ISM 2.43 GHz, 1328

PLL 2.4 GHz (a) (b) (a) Antenna (b) Transceiver 그림 6. 2.4 GHz Fig. 6. Photograph of a 2.4 GHz bio radar. I/Q LO. NEC RF 2SC5508 10 dbm. Anaren 90 hybrid Xinger 1P603.

5 PLL 2.4 GHz (a) (b) (a) Antenna (b) Transceiver 그림 GHz Fig. 6. Photograph of a 2.4 GHz bio radar. I/Q LO. NEC RF 2SC dbm. Anaren 90 hybrid Xinger 1P603., 90 hybrid 2SC5508 Skyworks SKY73009 I/Q I Q. OP AMP. 3 V, hybrid (housing)., 4,,. 6.. 호흡및심박수측정결과 3, 50 cm. set-up [8] 3-lead ECG. PLL IC PLL lock 50 cm 7 (a).,. I Q [5] I. [7] [8] PLL VCO (a) PLL (a) Without PLL (b) PLL (b) With PLL 그림 7. Fig. 7. Measurement results of the bio-radar signal. 1329

50 cm. 2.4 GHz,.. 참고문헌 [1] J. C. Lin, "Non-invasive microwave measurement of respiration", Proceedings of the IEEE, vol. 63, no. 10, p. 1530, 1975.

6 韓國電磁波學會論文誌第 20 卷第 12 號 2009 年 12 月 (a) PLL (a) Without PLL (b) PLL (b) With PLL 그림 8. Fig. 8. Power spectrum density of the bio-radar signal.. PLL IC 7(b). PLL,. MATLAB (PSD: Power Spectrum Density) 8. ECG 1 Hz, 0.25 Hz, PLL I Q db,. PLL, 1 2 db. PLL PLL... 결론 2.4 GHz. PLL., PLL. 3 V mm 2, PLL. 50 cm. 2.4 GHz,.. 참고문헌 [1] J. C. Lin, "Non-invasive microwave measurement of respiration", Proceedings of the IEEE, vol. 63, no. 10, p. 1530, [2] Changzhi Li, J. Cummings, J. Lam, E. Graves, and Wenhsing Wu, "Radar remote monitoring of vital signs", IEEE Microwave Magazine, vol. 10, pp

Microwave Theory Tech., vol. 54, no. 12, pp. 44764-4471, Dec. 2006. [4] Sang-Kyu Kim, Hyun Kim, Yongshik Lee, Il-Suek Kho, and Jong-Gwan Yook, "5.

7 PLL 2.4 GHz 56, Feb [3] Changzhi Li, Yanming Xiao, and Jenshan Lin, "Experimental and spectral analysis of a low-power Ka-band heartbeat detector measuring from four sides of a human body", IEEE Trans. Microwave Theory Tech., vol. 54, no. 12, pp , Dec [4] Sang-Kyu Kim, Hyun Kim, Yongshik Lee, Il-Suek Kho, and Jong-Gwan Yook, "5.8 GHz vital signal sensing Doppler radar using isolation-improved branch-line coupler", 3 rd European Radar Conference, Sep [5] A. D. Droitcour, O. Boric-Lubecke, V. M. Lubecke, J. Lin, and G. T. A Kovac, "Range correlation and I/Q performance benefits in single-chip silicon Doppler radars for non-contact cardiopulmonary monitoring", IEEE Trans. Microwave Theory Tech., vol. 52, no. 3, pp , Mar [6] J. -G. Kim, S. -H. Sim, S. Cheon, and S. Hong, "24 GHz circularly polarized doppler radar with a single antenns", The Proceedings of 2005 European Microwave Conference, vol. 2, pp. 4-7, Oct [7],,,, " CW ",, 19(9), pp , [8] B. J. Jang, S. H. Wi, J. G. Yook, M. Q. Lee, and K. J. Lee, "Wireless bio-radar sensor for heartbeat and respiration detection", Progress in Electromagnetics Research C, vol. 5, pp , Dec [9] Hua-Min Chen, Kin-Lu Wong, "On the circular polarization operation of annular-ring microstrip antennas", IEEE Trans. Antennas Propagat., vol. 7, no. pp , Oct [10],,, " 2.4 GHz ",, 19(2), pp , [11] A. Droitcour, "Non-contact measurement of heart and respiration rates with a single-chip microwave doppler radar", Ph.D. Thesis, Jun [12],,,,,, " ",, 46(SC-1), pp. 1-9, : : : : LG : : : [ 주관심분야 ] RF/,, RFID/USN, -IT, -RF : : : [ 주관심분야 ], 1331

韓國電磁波學會論文誌第 20 卷第 12 號 2009 年 12 月 1987 2 : 1989 2 : 1996 2 : University of Michigan 1997 1

, Senior Engineer 1999 3 2000 2 : 2000 3 : [ 주관심분야 ],, (EMI/EMC),, RF MEMS, 1981 2 : 1983 2

: 1996 2 : 1996 1 1998 4 : 1998 5 1999 4 : 1999 4 2000 7 : Agilent Technologies EEsof 2000

8 韓國電磁波學會論文誌第 20 卷第 12 號 2009 年 12 月 : : : University of Michigan : University of Michigan (Research Fellow) : Qualcomm Inc., Senior Engineer : : [ 주관심분야 ],, (EMI/EMC),, RF MEMS, : : : : : Case Western Reserve University [ 주관심분야 ], /,,, : : : : : Agilent Technologies EEsof : ( )VSWR : ( )Pantech : ( ) [ 주관심분야 ] RF/ System/Subsystem,, VSAT 1332

05 목차(페이지 1,2).hwp

05 목차(페이지 1,2).hwp THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2014 Apr.; 25(4), 418 425. http://dx.doi.org/10.5515/kjkiees.2014.25.4.418 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Doppler