Title :
Effects of mechanical flaws in open-ended coaxial probes for dielectric spectroscopy
Author :
Popovic, Dijana ; Okoniewski, Michal
Author_Institution :
Dept. of Electr. & Comput. Eng., Calgary Univ., Alta., Canada
Abstract :
A detailed study of dielectric properties of breast tissue in the 0.1 to 20 GHz frequency range currently under way uses open-ended teflon coaxial probes as sensors. This letter quantifies the effects of small mechanical imperfections at the probe aperture on the measured reflection coefficient. The mechanical flaws in the probe can lead to significant errors, thus probes for dielectric spectroscopy of breast tissue have to be carefully manufactured.
Keywords :
biological tissues; biomedical measurement; dielectric measurement; microwave reflectometry; probes; 0.1 to 20 GHz; breast tissue; dielectric properties; dielectric spectroscopy; mechanical flaw; microwave reflectometry; open-ended coaxial probe; teflon sensor; Apertures; Breast tissue; Coaxial components; Dielectric measurements; Electrochemical impedance spectroscopy; Frequency; Mechanical sensors; Mechanical variables measurement; Probes; Reflection;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2002.803192
