Publisher DOI: 10.23919/GEMIC.2018.8335069
Title: Microwave impedance sensors for the dielectric characterization of liquids
Language: English
Authors: Savic, Aleksandar  
Meyne, Nora 
Jacob, Arne 
Issue Date: 10-Apr-2018
Publisher: IEEE
Source: GeMiC 2018 - 2018 German Microwave Conference (2018-January): 219-222 (2018-04-10)
Abstract (english): Two small coplanar waveguide impedance sensors for the characterization of liquids are introduced. A simplified two-step calibration procedure is developed. The first step defines the reference plane, which is set close to the sample. This yields a simple lumped element equivalent circuit model. Only two known materials, namely air and a 1.0% NaCl solution, are then needed to determine calibration curves for parameter extraction. The capability of the presented sensors to determine the permittivity of unknown liquids with low, moderate, and high loss up to about 12 GHz is analyzed. The major strengths of the proposed approach are broadband measurement capability, simplicity of the calibration procedure and potential for miniaturization.
Conference: 11th German Microwave Conference, GeMiC 2018 
ISBN: 978-3-9812668-8-7
Institute: Hochfrequenztechnik E-3 
Type: InProceedings (Aufsatz / Paper einer Konferenz etc.)
Project: Mikrowellensensoren für die dielektrische Charakterisierung biologischer Zellen 
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