Planar microwave resonant sensors: A review and recent developments

J Muñoz-Enano, P Vélez, M Gil, F Martín - Applied Sciences, 2020 - mdpi.com
Microwave sensors based on electrically small planar resonant elements are reviewed in
this paper. By virtue of the high sensitivity of such resonators to the properties of their …

Microwave microfluidic sensor based on a microstrip splitter/combiner configuration and split ring resonators (SRRs) for dielectric characterization of liquids

P Vélez, L Su, K Grenier, J Mata-Contreras… - IEEE Sensors …, 2017 - ieeexplore.ieee.org
A microwave microfluidic sensor for dielectric characterization of liquids in real time is
presented in this paper. The sensor is implemented in microstrip technology and consists of …

Differential sensors using microstrip lines loaded with two split-ring resonators

A Ebrahimi, J Scott, K Ghorbani - IEEE Sensors Journal, 2018 - ieeexplore.ieee.org
This paper presents a microwave sensor using a pair of split-ring resonators (SRRs). The
sensor is designed by loading a microstrip transmission line by two identical SRRs on its …

Sensitivity optimization in single-frequency planar microwave sensors for solid and liquid characterization and microfluidics

P Casacuberta, A Ebrahimi, P Vélez… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
This article reviews some recent strategies for sensitivity optimization in planar microwave
sensors operating at a single frequency, namely, phase-variation sensors and magnitude …

Single-frequency amplitude-modulation sensor for dielectric characterization of solids and microfluidics

P Velez, J Munoz-Enano, A Ebrahimi… - IEEE Sensors …, 2021 - ieeexplore.ieee.org
A microfluidic sensor based on a microstrip line loaded with a composite resonator is
reported in this paper. The composite resonator combines a shunt connected step …

Highly sensitive phase-variation dielectric constant sensor based on a capacitively-loaded slow-wave transmission line

A Ebrahimi, J Coromina, J Munoz-Enano… - … on Circuits and …, 2021 - ieeexplore.ieee.org
This paper presents a highly sensitive phase-variation sensor for dielectric constant
measurements based on a capacitively-loaded periodic slow-wave transmission line. Such …

Splitter/combiner microstrip sections loaded with pairs of complementary split ring resonators (CSRRs): Modeling and optimization for differential sensing applications

L Su, J Mata-Contreras, P Velez… - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
This paper focuses on the analysis of splitter/combiner microstrip sections where each
branch is loaded with a complementary split ring resonator (CSRR). The distance between …

Metamaterial inspired microwave sensors

M Schueler, C Mandel, M Puentes… - IEEE Microwave …, 2012 - ieeexplore.ieee.org
Cheap and ubiquitous sensor systems will shape the coming decades. There is an
emerging class of small high-performance electronic devices such as mobile phones …

Differential microwave microfluidic sensor based on microstrip complementary split-ring resonator (MCSRR) structure

HY Gan, WS Zhao, Q Liu, DW Wang… - IEEE Sensors …, 2020 - ieeexplore.ieee.org
This paper presents a differential microwave microfluidic sensor based on the microstrip
complementary split-ring resonator (MCSRR) structure for liquid characterization. At the …

Portable reflective-mode phase-variation microwave sensor based on a rat-race coupler pair and gain/phase detector for dielectric characterization

P Vélez, F Paredes, P Casacuberta… - IEEE Sensors …, 2023 - ieeexplore.ieee.org
This article presents a low-cost and portable phase-variation planar microwave sensor
operating in reflective mode, where the output variable, the phase of the reflection coefficient …