Microwave-Based Noninvasive Concentration Measurements for Biomedical Applications

A Debye relaxation model for the permittivity of aqueous glucose solution is given up to 40 GHz. Measurements of aqueous solutions are compared with invasive measurements on over 40 blood samples. Reflection- and transmission-based techniques are explained, concerning the application in biomedical c...

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Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 2013-05, Vol.61 (5), p.2195-2204
Main Authors: Hofmann, Maximilian, Fischer, G., Weigel, R., Kissinger, D.
Format: Article
Language:English
Subjects:
Biomedical measurement
Blood
Blood sugar
dielectric measurements
glucose
Microwave measurements
network analyzer
noninvasive
Permittivity
Permittivity measurement
Probes
reflectometer
Sugar
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Summary:A Debye relaxation model for the permittivity of aqueous glucose solution is given up to 40 GHz. Measurements of aqueous solutions are compared with invasive measurements on over 40 blood samples. Reflection- and transmission-based techniques are explained, concerning the application in biomedical concentration measurements. Wideband measurements on different sensing structures are introduced. Reflection- and transmission-based sensors are applied to a six-port reflectometer, as well as a homodyne vector network analyzer.
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.2013.2250516