Review of recent microwave planar resonator-based sensors: Techniques of complex permittivity extraction, applications, open challenges and future research …

RA Alahnomi, Z Zakaria, ZM Yussof, AA Althuwayb… - Sensors, 2021 - mdpi.com
Recent developments in the field of microwave planar sensors have led to a renewed
interest in industrial, chemical, biological and medical applications that are capable of …

Microwave substrate integrated waveguide resonator sensor for non-invasive monitoring of blood glucose concentration: Low cost and painless tool for diabetics

S Kiani, P Rezaei - Measurement, 2023 - Elsevier
In this study, a microwave resonant sensor with an operation frequency of 9 GHz and a
quality factor of 240 has been designed, fabricated and tested by fingertips of the users to …

AI-assisted ultra-high-sensitivity/resolution active-coupled CSRR-based sensor with embedded selectivity

M Abdolrazzaghi, N Kazemi, V Nayyeri, F Martin - Sensors, 2023 - mdpi.com
This research explores the application of an artificial intelligence (AI)-assisted approach to
enhance the selectivity of microwave sensors used for liquid mixture sensing. We utilized a …

Dual-frequency microwave resonant sensor to detect noninvasive glucose-level changes through the fingertip

S Kiani, P Rezaei, M Fakhr - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
In this article, which is a fundamental step in an underway research, a microwave resonant
sensor at two resonance frequencies of 5.5 and 8.5 GHz (in order to increase the accuracy …

Dual-sensing and dual-frequency microwave SRR sensor for liquid samples permittivity detection

S Kiani, P Rezaei, M Navaei - Measurement, 2020 - Elsevier
In this paper, a microwave sensor based on the split ring resonator has been proposed to
detect the real part of the dielectric constant of the liquid sample. The proposed structure …

Real-time measurement of liquid permittivity through label-free meandered microwave sensor

S Kiani, P Rezaei, M Fakhr - IETE Journal of Research, 2024 - Taylor & Francis
In this paper, a microwave sensor with a meandered microstrip structure is introduced to
measure the permittivity of the various liquids. The performance of the sensor is based on …

An overview of interdigitated microwave resonance sensors for liquid samples permittivity detection

S Kiani, P Rezaei, M Fakhr - Interdigital Sensors: Progress over the Last …, 2021 - Springer
Microwave sensors based on electrically small planar resonant elements are investigated in
this season. Due to the high sensitivity of these resonators to the properties of their …

A CPW-fed wearable antenna at ISM band for biomedical and WBAN applications

S Kiani, P Rezaei, M Fakhr - Wireless Networks, 2021 - Springer
In this paper, a Mercedes-Benz logo antenna with a metal plate located at an optimized
distance from the proposed antenna is introduced as a wearable antenna to operate in the …

Highly sensitive reflective-mode phase-variation permittivity sensors using coupled line sections

P Casacuberta, P Vélez, J Muñoz-Enano… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
Highly sensitive permittivity sensors operating in reflection and exploiting phase variation
are presented in this article. The sensors are one-port structures implemented by means of a …

Microwave sensor loaded with complementary curved ring resonator for material permittivity detection

X Han, X Li, Y Zhou, Z Ma, P Peng, C Fu… - IEEE Sensors …, 2022 - ieeexplore.ieee.org
In the field of microwave measurement, how to miniaturize devices and improve
measurement sensitivity is a major challenge. In this article, a planar microwave sensor …