Noninvasive Biosignal Detection Radar System Using Circular Polarization

This paper proposes an integrated hypersensitive Doppler radar system through a circular polarization characteristic. Through the idea of a reverse sense of rotation when the reflecting surface is perfectly conducting, it is shown that the detecting property of the system can be effectively improved...

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Bibliographic Details
Published in:IEEE journal of biomedical and health informatics 2009-05, Vol.13 (3), p.400-404
Main Authors: Lee, Jee-Hoon, Hwang, Jung Man, Choi, Dong Hyuk, Park, Seong-Ook
Format: Article
Language:English
Subjects:
Adult
Axial ratio
biosignal
Bistatic radar
circular polarization (CP)
Doppler Effect
Doppler radar
Electric Conductivity
Electrocardiography
Equipment Design
Frequency
Heart rate
Heart Rate - physiology
Humans
isolation
Male
Monitoring, Physiologic - instrumentation
Muscles
Polarization
Radar
Radar antennas
Radar detection
Reflector antennas
Respiration
Skin
Skin Physiological Phenomena
wireless-integrated system
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Summary:This paper proposes an integrated hypersensitive Doppler radar system through a circular polarization characteristic. Through the idea of a reverse sense of rotation when the reflecting surface is perfectly conducting, it is shown that the detecting property of the system can be effectively improved by using antennas that have a reverse polarization. This bistatic radar system can be used in noninvasively sensing biosignals such as respiration and heart rates with the periodic movement of skin and muscle near the heart. The operating frequency of the system is in the X-band and the radar size is 95 times 50 times 13 mm 3 .
ISSN:1089-7771
2168-2194
1558-0032
2168-2208
DOI:10.1109/TITB.2009.2018623