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Antipodal Vivaldi antennas dedicated to in-situ broadband microwave permittivity measurements

Demontoux, François and Yaakoubi, Ghita and Wigneron, Ghilem and Grzeskowiak, Marjorie and Sbartaï, Zoubir-Mehdi and Fadel, Ludivine and Ruffié, Gilles and Bonnaudin, Fabrice and Oyhenart, Laurent and Vigneras, Valérie and Wigneron, Jean-Pierre and Villard, Ludovic and Le Toan, Thuy and Kerr, Yann Antipodal Vivaldi antennas dedicated to in-situ broadband microwave permittivity measurements. ( In Press: 2019) In: European Microwave Conference in Central Europe (EuMCE), 13 May 2019 - 15 May 2019 (Prague, Czech Republic).

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Official URL: https://www.eumce.com/

Abstract

In the context of the ESA's SMOS and the ESA's BIOMASS space mission, the data processing algorithms require precise permittivity models of the different wood species. To develop the models, in situ sensors that could be easily deployed on the site dedicated to calibration/validation studies would be truly relevant. Microwave volume analysis can be a very useful tool to monitor material properties. There are very few commercial equipment dedicated to in-situ measurements and none of them is developed in order to leave the instrument on site for automatic measurements with specific constraints such as communication, low power consumption, frequency broadband, non-invasive measurement and cheap price. The main objective of the study presented is to develop an equipment to meet these challenges. In this article we will present the study that we conducted to design the broadband antennas needed by the device to perform efficient in situ measurements. Preliminary results on a concrete structure demonstrate the possibility to perform quality B scan despite the strict imposed specifications.

Item Type:Conference or Workshop Item (Paper)
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:Other partners > Arts et Métiers ParisTech (FRANCE)
Other partners > Bordeaux INP - BINP (FRANCE)
French research institutions > Centre National d'Études Spatiales - CNES (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
French research institutions > Institut National de la Recherche Agronomique - INRA (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Bordeaux Sciences Agro (FRANCE)
Other partners > Institut national des sciences de l'Univers - INSU (FRANCE)
Other partners > Université de Bordeaux (FRANCE)
Laboratory name:
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Deposited By: Marjorie GRZESKOWIAK
Deposited On:29 Aug 2019 14:50

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