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Feasibility Study on Measuring the Particulate Matter Level in the Atmosphere by Means of Yagi–Uda-Like Antennas

1
CRETUS Institute, Department of Applied Physics, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain
2
[email protected], Department of Information Engineering and Computer Science, University of Trento, 38123 Trento, Italy
3
CRETUS Institute, Department of Morphological Sciences, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain
4
Department of Electrical Engineering and Information Technology (DIETI), Università di Napoli Federico II, 80131 Naples, Italy
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(11), 3225; https://doi.org/10.3390/s20113225
Received: 7 May 2020 / Revised: 31 May 2020 / Accepted: 2 June 2020 / Published: 5 June 2020
(This article belongs to the Section Remote Sensors)
In this work, the application of a technique for monitoring changes of the dielectric constant of the atmosphere caused by the presence of pollution is discussed. The method is based on changes in the reflection coefficient of the device induced by these dielectric constant variations of the surrounding medium. To that end, several Yagi–Uda-like antenna designs with different size limitations were simulated by using a Method-of-Moments software and optimized by means of a simulated annealing strategy. It has been found that the larger the optimal elements of the array are allowed to be, the higher the sensitivity reached. Thus, in a trade-off between sensitivity and moderate length (regarding flexibility purposes), the most promising solution has been built. This prototype has been experimentally tested in presence of an artificial aerosol made of PAO (polyalphaolefin) oil and black carbon inclusions of a size of 0.2 μm. As a result, potentials for developing a measurement procedure by means of changes in the characteristic parameters of the antenna led by different concentration levels of suspended particles in the surrounding medium are shown. In this manner, a local mapping of polluted levels could be developed in an easy, real-time, and flexible procedure. View Full-Text
Keywords: air pollution; antenna arrays; dielectric constant; optimization methods; Yagi–Uda antennas air pollution; antenna arrays; dielectric constant; optimization methods; Yagi–Uda antennas
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MDPI and ACS Style

Salas-Sánchez, A.A.; Rauch, J.; López-Martín, M.E.; Rodríguez-González, J.A.; Franceschetti, G.; Ares-Pena, F.J. Feasibility Study on Measuring the Particulate Matter Level in the Atmosphere by Means of Yagi–Uda-Like Antennas. Sensors 2020, 20, 3225. https://doi.org/10.3390/s20113225

AMA Style

Salas-Sánchez AA, Rauch J, López-Martín ME, Rodríguez-González JA, Franceschetti G, Ares-Pena FJ. Feasibility Study on Measuring the Particulate Matter Level in the Atmosphere by Means of Yagi–Uda-Like Antennas. Sensors. 2020; 20(11):3225. https://doi.org/10.3390/s20113225

Chicago/Turabian Style

Salas-Sánchez, Aarón A.; Rauch, Julian; López-Martín, M. E.; Rodríguez-González, J. A.; Franceschetti, Giorgio; Ares-Pena, Francisco J. 2020. "Feasibility Study on Measuring the Particulate Matter Level in the Atmosphere by Means of Yagi–Uda-Like Antennas" Sensors 20, no. 11: 3225. https://doi.org/10.3390/s20113225

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