Title :
An inexpensive backside-sensing coplanar waveguide sensor for characterization of liquids and solids up to 40 GHz
Author :
Liu, Siyuan ; Ocket, I. ; Nauwelaers, B. ; Schreurs, Dominique
Author_Institution :
Div. ESAT-TELEMIC, Univ. of Leuven, Leuven, Belgium
Abstract :
We present in this paper an inexpensive sensor realized on printed circuit board for broadband dielectric characterization of both liquids and solids. It is based on a CPW-CPW transition and statistical calibration. The specific property of the approach is that no assumption regarding cascading transmission lines with different properties has to be made as permittivity is obtained by a single-tier calibration. The sensor is validated by measurements of methanol and PDMS.
Keywords :
biological techniques; calibration; coplanar waveguides; microwave detectors; permittivity; printed circuits; CPW-CPW transition; PDMS; broadband dielectric characterization; cascading transmission lines; coplanar waveguide sensor; inexpensive backside sensor; liquids; methanol; permittivity; printed circuit board; single-tier calibration; solids; statistical calibration; Calibration; Liquids; Permittivity; Permittivity measurement; Substrates; Temperature measurement; Transmission line measurements; liquids; microwave sensors; printed circuits; solids;
Conference_Titel :
Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS), 2014 IEEE Topical Conference on
Conference_Location :
Newport Beach, CA
Print_ISBN :
978-1-4799-2298-7
DOI :
10.1109/BioWireleSS.2014.6827729
