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Article Dans Une Revue Sensors and Actuators A: Physical Année : 2015

Sensing of liquid droplets with a scanning near-field microwave microscope

Résumé

We demonstrate a scanning near-field microwave microscope based on an interferometric technique for dielectric characterization in liquid media. The instrumentation combines a vector network analyzer, an interferometry-based matching network and an evanescent microwave coaxial probe. The measurement sensitivity of the measured microwave signals can be enhanced at the desired frequency in the range 1-26 GHz. Other advantages such as simplicity of operation and high spatial resolution are also achieved. As a demonstration, we have observed a high electromagnetic coupling between the probe tip and liquid droplets featuring emergent applications in biological and chemical researches. (C) 2015 Elsevier B.V. All rights reserved.
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Dates et versions

hal-03224663 , version 1 (11-05-2021)

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Kamel Haddadi, S. Gu, T. Lasri. Sensing of liquid droplets with a scanning near-field microwave microscope. Sensors and Actuators A: Physical , 2015, 230, pp.170-174. ⟨10.1016/j.sna.2015.04.028⟩. ⟨hal-03224663⟩
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