Employing Machine Learning Approach in Cavity Resonator Sensors for Characterization of Lossy Dielectrics

This work presents a novel microwave sensor that is specially designed for the retrieval of complex permittivity. The proposed sensor is designed to operate in the C band (4.54 GHz). By implementing a novel feeding structure, the proposed SIW cavity design improves the coupling and achieves a better...

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Main Authors: Kianoosh Kazemi, Gholamreza Moradi
Format: Article
Language:English
Published: Iran Telecom Research Center 2021-09-01
Series:International Journal of Information and Communication Technology Research
Subjects:
Online Access:http://ijict.itrc.ac.ir/article-1-485-en.html
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author Kianoosh Kazemi
Gholamreza Moradi
author_facet Kianoosh Kazemi
Gholamreza Moradi
author_sort Kianoosh Kazemi
collection DOAJ
description This work presents a novel microwave sensor that is specially designed for the retrieval of complex permittivity. The proposed sensor is designed to operate in the C band (4.54 GHz). By implementing a novel feeding structure, the proposed SIW cavity design improves the coupling and achieves a better quality factor. Several techniques are used to enhance sensitivity, including a Photonic Band Gap (PBG), corner cut, and slow-wave vias. These techniques increase the interaction between the material under test and the electric field. By utilizing slow-wave vias, 35% size reduction is achieved. Achieving simultaneous miniaturization and sensitivity enhancement in this study introduces a new possibility and application for sensor design. The values of complex permittivities are extracted from scattering parameters obtained from simulation of the structure in CST Microwave Studio (MWS) using a machine learning approaches. Our sensor has 0.8% sensitivity, which is better than that of other sensors. Moreover, the maximum error rate in our method is lower than other existing methods. This ratio for the proposed method is 2.31% while for curve fitting and analytical solutions are 26% and 16%, respectively.
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spelling doaj.art-3630fc7217f2460abd777e707b2e715e2023-02-08T08:00:26ZengIran Telecom Research CenterInternational Journal of Information and Communication Technology Research2251-61072783-44252021-09-01133111Employing Machine Learning Approach in Cavity Resonator Sensors for Characterization of Lossy DielectricsKianoosh Kazemi0Gholamreza Moradi1 Department of Electrical Engineering Amirkabir University of Technology Tehran, Iran Department of Electrical Engineering Amirkabir University of Technology Tehran, Iran This work presents a novel microwave sensor that is specially designed for the retrieval of complex permittivity. The proposed sensor is designed to operate in the C band (4.54 GHz). By implementing a novel feeding structure, the proposed SIW cavity design improves the coupling and achieves a better quality factor. Several techniques are used to enhance sensitivity, including a Photonic Band Gap (PBG), corner cut, and slow-wave vias. These techniques increase the interaction between the material under test and the electric field. By utilizing slow-wave vias, 35% size reduction is achieved. Achieving simultaneous miniaturization and sensitivity enhancement in this study introduces a new possibility and application for sensor design. The values of complex permittivities are extracted from scattering parameters obtained from simulation of the structure in CST Microwave Studio (MWS) using a machine learning approaches. Our sensor has 0.8% sensitivity, which is better than that of other sensors. Moreover, the maximum error rate in our method is lower than other existing methods. This ratio for the proposed method is 2.31% while for curve fitting and analytical solutions are 26% and 16%, respectively.http://ijict.itrc.ac.ir/article-1-485-en.htmlcomplex permittivitymachine learning (ml)photonic band gapslow-wavesubstrate integrated waveguide (siw).
spellingShingle Kianoosh Kazemi
Gholamreza Moradi
Employing Machine Learning Approach in Cavity Resonator Sensors for Characterization of Lossy Dielectrics
International Journal of Information and Communication Technology Research
complex permittivity
machine learning (ml)
photonic band gap
slow-wave
substrate integrated waveguide (siw).
title Employing Machine Learning Approach in Cavity Resonator Sensors for Characterization of Lossy Dielectrics
title_full Employing Machine Learning Approach in Cavity Resonator Sensors for Characterization of Lossy Dielectrics
title_fullStr Employing Machine Learning Approach in Cavity Resonator Sensors for Characterization of Lossy Dielectrics
title_full_unstemmed Employing Machine Learning Approach in Cavity Resonator Sensors for Characterization of Lossy Dielectrics
title_short Employing Machine Learning Approach in Cavity Resonator Sensors for Characterization of Lossy Dielectrics
title_sort employing machine learning approach in cavity resonator sensors for characterization of lossy dielectrics
topic complex permittivity
machine learning (ml)
photonic band gap
slow-wave
substrate integrated waveguide (siw).
url http://ijict.itrc.ac.ir/article-1-485-en.html
work_keys_str_mv AT kianooshkazemi employingmachinelearningapproachincavityresonatorsensorsforcharacterizationoflossydielectrics
AT gholamrezamoradi employingmachinelearningapproachincavityresonatorsensorsforcharacterizationoflossydielectrics