Design and Characterization of a Microwave Planar Sensor for Dielectric Assessment of Vegetable Oils

Design and Characterization of a Microwave Planar Sensor for Dielectric Assessment of Vegetable Oils

We report on the numerical simulations and experimental validation of a microwave planar sensor based on two coupled rings operating in the 4−6 GHz range. The fabricated sensor is used to characterize the dielectric permittivity of vegetable oils. We optimized the geometrical parameters in...

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Bibliographic Details
Main Authors: Aleksandr Ivanov, Timur Agliullin, Dario Laneve, Vincenza Portosi, Artem Vorobev, Raoul R. Nigmatullin, Aydar Nasybullin, Oleg Morozov, Francesco Prudenzano, Antonella D’Orazio, Marco Grande
Format: Article
Language:English
Published: MDPI AG 2019-09-01
Series:Electronics
Subjects:
dielectric constant measurement
microwave measurements
planar sensor
olive oil
Online Access:https://www.mdpi.com/2079-9292/8/9/1030
Description
Summary:We report on the numerical simulations and experimental validation of a microwave planar sensor based on two coupled rings operating in the 4−6 GHz range. The fabricated sensor is used to characterize the dielectric permittivity of vegetable oils. We optimized the geometrical parameters in order to improve the overlap between the oil samples under study and the electric field. The experimental results showed an excellent match with the simulation results. The fabricated sensor allowed to retrieve the oil permittivity with a sensitivity of about 35 MHz per permittivity unit in the frequency range of interest. This paves the way to the realization of compact and sensitive sensors for a wide plethora of fields ranging from industry and food to chemistry and biology.
ISSN:2079-9292

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