Wrist Pulse Detection System Based on Changes in the Near-Field Reflection Coefficient of a Resonator

被引：15

作者：

An, Yong-Jun ^{[1
]}

Yun, Gi-Ho ^{[2
]}

Kim, Sung Woo ^{[3
]}

Yook, Jong-Gwan ^{[1
]}

机构：

[1] Yonsei Univ, Dept Elect & Elect Engn, Seoul 120749, South Korea

[2] Sungkyul Univ, Informat & Commun Engn Dept, Kyonggi Do 430742, South Korea

[3] LG Elect, Adv Res Inst, Future IT R&D Lab, Seoul, South Korea

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2014年 / 24卷 / 10期

关键词：

Sensitivity enhancement; vital sign; wrist pulse;

D O I：

10.1109/LMWC.2014.2340584

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter presents a wrist pulse sensor based on reflection coefficient (S-11) from a resonator which is applicable to existing wearable communication devices. The compact resonator is designed on flexible substrate as an RF signal radiator. Since the reflection coefficient from the resonator depends on the distance between the resonator and the wall of the major artery, slight changes in radial artery diameter can be utilized to obtain pulse rate at the wrist. The sensor system is implemented and tested at 2.4 GHz ISM band, and reveals excellent performance in terms of sensitivity as well as convenience as a wearable device compared to conventional piezoelectric or photoplethysmography (PPG) sensor.

引用

页码：719 / 721

页数：3

共 10 条

[1] Identification of genetic/epigenetic biomarkers for supporting decision of VOCs exposure [J].

An, Yu Ri ;

Kim, Seung Jun ;

Yu, So-Yeon ;

Yoon, Hyo-Jung ;

Song, Mi-Kyung ;

Ryu, Jae-Chun ;

Hwang, Seung Yong .

BIOCHIP JOURNAL, 2013, 7 (01) :1-5

[2] Pulse transit time based on piezoelectric technique at the radial artery [J].

Foo J.Y.A. ;

Lim C.S. .

Journal of Clinical Monitoring and Computing, 2006, 20 (3) :185-192

[3] The dielectric properties of biological tissues .2. Measurements in the frequency range 10 Hz to 20 GHz [J].

Gabriel, S ;

Lau, RW ;

Gabriel, C .

PHYSICS IN MEDICINE AND BIOLOGY, 1996, 41 (11) :2251-2269

[4] Linear tunable phase shifter using a left-handed transmission line [J].

Kim, H ;

Kozyrev, AB ;

Karbassi, A ;

van der Weide, DW .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2005, 15 (05) :366-368

[5]

Kim Sang Kyu, 2012, Journal of Electromagnetic Engineering and Science, V12, P37

[6] Compact Vital Signal Sensor Using Oscillation Frequency Deviation [J].

Kim, Sang-Gyu ;

Yun, Gi-Ho ;

Yook, Jong-Gwan .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2012, 60 (02) :393-400

[7] A Wireless Reflectance Pulse Oximeter With Digital Baseline Control for Unfiltered Photoplethysmograms [J].

Li, Kejia ;

Warren, Steve .

IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, 2012, 6 (03) :269-278

[8] Clinical measurement of arterial stiffness obtained from noninvasive pressure waveforms [J].

Nichols, WW .

AMERICAN JOURNAL OF HYPERTENSION, 2005, 18 (01) :3S-10S

[9]

Renevey P, 2001, P ANN INT IEEE EMBS, V23, P3030, DOI 10.1109/IEMBS.2001.1017437

[10] Flexible polymer transistors with high pressure sensitivity for application in electronic skin and health monitoring [J].

Schwartz, Gregor ;

Tee, Benjamin C. -K. ;

Mei, Jianguo ;

Appleton, Anthony L. ;

Kim, Do Hwan ;

Wang, Huiliang ;

Bao, Zhenan .

NATURE COMMUNICATIONS, 2013, 4

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