Broadband dielectric characterization of aqueous saline solutions by an interferometer-based microwave microscope
| Autor: | Sijia Gu, Tuami Lasri, Tianjun Lin |
|---|---|
| Přispěvatelé: | Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Microtechnology and Instrumentation for Thermal and Electromagnetic Characterization - IEMN (MITEC - IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Permittivity
Microscope Physics and Astronomy (miscellaneous) Frequency band Sodium chloride Analytical chemistry Complex networks 02 engineering and technology Dielectric Dielectric characterization 01 natural sciences law.invention Electric network analyzers [SPI]Engineering Sciences [physics] Optics Near-field microwave microscopes law 0103 physical sciences Evanescent microwave probes 010302 applied physics Aqueous solution business.industry Chemistry Interferometers Complex dielectric permittivities Vector network analyzers Microwave microscopes Ranging 021001 nanoscience & nanotechnology Accurate measurement Interferometry Measurement sensitivity 0210 nano-technology business Microwave Scattering parameters |
| Zdroj: | Applied Physics Letters Applied Physics Letters, 2016, 108 (24), pp.242903. ⟨10.1063/1.4953629⟩ |
| ISSN: | 0003-6951 |
| DOI: | 10.1063/1.4953629⟩ |
| Popis: | International audience; The complex dielectric permittivity of aqueous saline solutions has been determined in the frequency range [2-18 GHz] with a home-made near-field microwave microscope. The instrument is built on a vector network analyzer, a matching network, and an evanescent microwave probe. The interferometer-based matching network enables highly reproducible, sensitive, and accurate measurements on the entire frequency band of operation. NaCl solutions concentrations ranging from 0 to 160 mg/ml are investigated at 25 °C. A maximum measurement sensitivity for NaCl concentrations is found to be equal to 2.3 dB/(mg/ml) and 7.7°/(mg/ml) for magnitude and phase-shift, respectively. To translate the measurement data (S parameters) to the corresponding complex permittivities, an inversion procedure based on a simple calibration model is applied. The resulting complex permittivities are found to be in a very good agreement with those calculated by Cole-Cole model. © 2016 Author(s). |
| Databáze: | OpenAIRE |
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