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 …

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 …

A temperature-compensated differential microstrip sensor for microfluidic applications

WJ Wu, WS Zhao, DW Wang, B Yuan… - IEEE Sensors …, 2021 - ieeexplore.ieee.org
The paper proposes a temperature-compensated sensor for microfluidic application. The
sensor consists of a splitter/combiner section with two symmetrical complementary split-ring …

A dielectric loaded resonator for the measurement of the complex permittivity of dielectric substrates

A Alimenti, E Pittella, K Torokhtii… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
A new configuration of dielectric-loaded resonator (DR), particularly versatile for the complex
permittivity measurement of substrates for microwave circuits, even in the presence of back …

A metamaterial-based dielectric sensor for characterization of ethanol/1-pentanol binary liquid mixtures at dual bands

K Alp, F Bagci, B Akaoglu - Applied Physics A, 2023 - Springer
This study presents the design, implementation and validation of a metamaterial-based dual-
band dielectric sensor in a WR-229 microwave waveguide to determine complex dielectric …

Development and characterization of log periodic feedline based filter for water leakage detection in size invariant PVC pipes

A Paul, G Bhargava, S Majumdar - Flow Measurement and Instrumentation, 2024 - Elsevier
In this proposed work, water leakage detection in Polyvinyl chloride (PVC) pipes has been
investigated using a ring filter connected to log-periodic feedlines (LPF). The proposed filter …

Low cost multifunctional planar RF sensors for dielectric characterization and quality monitoring

A Raveendran, S Raman - IEEE Sensors Journal, 2021 - ieeexplore.ieee.org
Two planar resonant sensors for measuring permittivity and identifying adulteration in
vegetable oils are presented in this paper. The sensors are designed to operate in 2.4 GHz …

Simple, fast, and accurate broadband complex permittivity characterization algorithm: Methodology and experimental validation from 140 GHz up to 220 GHz

X Bao, L Wang, Z Wang, J Zhang, M Zhang, G Crupi… - Electronics, 2022 - mdpi.com
Accurate permittivity characterization has attracted a lot of attention in various areas.
Resonant characterization methods are well-known for their accuracy, but they are restricted …

A design of metamaterial inspired resonator for multifrequency fluidic sensors

X Song, S Yan, J Chen - IEEE Microwave and Wireless …, 2022 - ieeexplore.ieee.org
This letter presents a multifrequency planar resonator fed by coplanar waveguide (CPW) for
the determination of dispersive fluidic materials. By employing composite right-/left-handed …

Determination of the permittivity of transmission lines at milli-Kelvin temperatures

M Stanley, R Parker-Jervis, J Skinner, S De Graaf… - IEEE …, 2023 - ieeexplore.ieee.org
Many quantum technologies rely heavily on propagation of RF and microwave signals
through devices at cryogenic temperatures, and detailed understanding of materials and …