Article “Comparative Analysis of Machine Learning ‎Techniques for Temperature Compensation in ‎Microwave Sensors” was accepted for publication in IEEE Transactions on Microwave Theory and Techniques

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Nazli's article "Comparative Analysis of Machine Learning ‎Techniques for Temperature Compensation in ‎Microwave Sensors" was accepted for publication in IEEE Transactions on Microwave Theory and Techniques. Congratulations! Abstract: The planar nature of microwave sensors leaves them vulnerable to ambient temperature changes with potential impact on the perception of the material under test. A temperature compensation technique is required to consider its direct effect on the dielectric property of materials. In this article, machine learning algorithms are employed in two configurations of classifier and regressor on frequency response of a split-ring resonator operating at 1.19 GHz. A wide range of dielectric constant is covered with concentrations of [0:20%:100%]-methanol/acetone in water with a temperature cycle of 25 °C-50 °C. This broad variety of cases captures the complicacy of entangled trends that are…
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Article “A High-Resolution Reflective Microwave Planar Sensor for Sensing of Vanadium Electrolyte” has been accepted to MDPI Sensors

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Article "A High-Resolution Reflective Microwave Planar Sensor for Sensing of Vanadium Electrolyte" has been accepted to MDPI Sensors. Congratulations, Nazli and Kalvin! Abstract: Microwave planar sensors employ conventional passive complementary split-ring resonators (CSRR) as their sensitive region. In this work, a novel planar reflective sensor is introduced that deploys CSRRs as the front-end sensing element at fres=6 GHz with an extra loss-compensating negative resistance that restores the dissipated power in the sensor that is used in dielectric material characterization. It is shown that the S11 notch of −15 dB can be improved down to −40 dB without loss of sensitivity. An application of this design is shown in discriminating different states of vanadium redox solutions with highly lossy conditions of fully charged V5+ and fully discharged V4+ electrolytes.
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A Temperature-Compensated High-Resolution Microwave Sensor Using ANN

A Temperature-Compensated High-Resolution Microwave Sensor Using ANN

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Nazli Kazemi, an ECE doctoral student, has published an article on her work titled 'A Temperature-Compensated High-Resolution Microwave Sensor Using Artificial Neural Network' with supervisor Petr Musilek in IEEE Microwave and Wireless Components Letters. In this study, they develop and train an artificial neural network (ANN) to model the behavior of the microwave sensor and to eliminate the uncertainty caused by uncontrolled temperature variations on the sensor response. You can access the article here: https://lnkd.in/ggBHG6w Nazli had originally started working on this project as an M.Sc. student under the guidance of Mojgan Daneshmand, before Mojgan's tragic and untimely passing in January this year. This article is dedicated to Mojgan's memory and her commitment to support and uplift women in STEM. An in memorium article about Mojgan and her family is available here: https://lnkd.in/gc83Kqi
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