Articles | Volume 18
10 Dec 2020
 | 10 Dec 2020

Respiration parameter determination with non-obstructive methods

Sven Fisahn, Christian Siebauer, Jan Ringkamp, Kirsten J. Dehning, Stefan Zimmermann, and Jens Langejürgen

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Cited articles

Balanis, C. A.: Antenna Theory: Analysis and Design, John Wiley & Sons, Hoboken, NJ, USA, ISBN 978-1-118-642060-1, 2016. 
IEEE Standard #145: Definitions of Terms for Antennas, in: IEEE No 145-1969, 1–10, 12 January 1969,, 1969. 
Kundu, S. K. and Kumagai, S.: A Wearable Capacitive Sensor for Monitoring Human Respiratory Rate, Jpn. J. Appl. Phys., 52, 04CL05,, 2013. 
Laybros, S. and Combes, P. F.: On radiating-zone boundaries of short, λ∕2, and λ dipoles, IEEE Antenn. Propag. M., 46, 53–64, 2004. 
Leonhardt, S., Leicht, L., and Teichmann, D.: Unobtrusive Vital Sign Monitoring in Automotive Environments – A Review, Sensors, 18, 3080,, 2018. 
Short summary
In artificial ventilation of neonates uncuffed endotracheal tubes are commonly used. The unknown leakage hampers the detection of spontaneous breathing. A new method to measure respiration by using antennae has recently been presented. A respective setup is investigated numerically and experimentally. Both approaches show that the method seems capable of allowing a contactless triggering to synchronize ventilation. The results are compared to derive a better understanding of influencing factors.