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A Method to Retrieve the Output Variables in Reflective-Mode Phase-Variation Sensors
2022 52nd European Microwave Conference (EuMC), 2022 In this paper, a method to retrieve the relevant information, i.e., the phase and magnitude of the reflection coefficient, in reflective-mode phase-variation sensors is reported. By using a pair of rat-race hybrid couplers conveniently connected, and with the ports appropriately loaded, including the one-port sensing load, the reflection coefficient of
Mahmoud Elgeziry +2 more
exaly +3 more sources
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Open-Ended-Line Reflective-Mode Phase-Variation Sensors for Dielectric Constant Measurements
2020 IEEE SENSORS, 2020This paper reports a detailed analysis of reflective-mode phase-variation sensors based on open-ended microstrip lines. These sensors are useful for measuring dielectric constants or other variables related to it (e.g., material or liquid composition).
Jonathan Muñoz-Enano +2 more
exaly +2 more sources
Effects of Losses on the Sensitivity of Reflective-Mode Phase-Variation Liquid Sensors
IEEE Transactions on Microwave Theory and TechniquesThis article is focused on the analysis of the effects of losses on the sensitivity of reflective-mode phase-variation liquid sensors implemented by means of an open-ended (either quarter-wavelength or half-wavelength) transmission line distributed resonator (the sensing element) cascaded to a set of high/low impedance inverters (implemented by means ...
Paris Velez +2 more
exaly +4 more sources
Highly-Sensitive Microwave Phase-Variation Permittivity Sensors
2023 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC), 2023Pau Casacuberta +2 more
exaly +2 more sources
Reflective-Mode Phase-Variation Permittivity Sensors Based on Coupled Resonators
2022 IEEE Sensors, 2022Pau Casacuberta +2 more
exaly +2 more sources
IEEE Transactions on Microwave Theory and Techniques
This article proposes a novel reflective-mode phase-variation sensor based on a movable step impedance resonator (SIR) implemented in coplanar waveguide (CPW) technology. The sensing principle is the variation of the phase of the reflection coefficient at a specific (operating) frequency generated by SIR motion.
Amirhossein Karami-Horestani +2 more
exaly +3 more sources
This article proposes a novel reflective-mode phase-variation sensor based on a movable step impedance resonator (SIR) implemented in coplanar waveguide (CPW) technology. The sensing principle is the variation of the phase of the reflection coefficient at a specific (operating) frequency generated by SIR motion.
Amirhossein Karami-Horestani +2 more
exaly +3 more sources
IEEE Transactions on Circuits and Systems I: Regular Papers, 2021
This paper presents a highly sensitive phase-variation sensor for dielectric constant measurements based on a capacitively-loaded periodic slow-wave transmission line. Such line is implemented in microstrip technology, and the loading capacitors are formed by closely spaced rectangular patches.
Amir Ebrahimi 0002 +6 more
openaire +1 more source
This paper presents a highly sensitive phase-variation sensor for dielectric constant measurements based on a capacitively-loaded periodic slow-wave transmission line. Such line is implemented in microstrip technology, and the loading capacitors are formed by closely spaced rectangular patches.
Amir Ebrahimi 0002 +6 more
openaire +1 more source
A Microwave Microfluidic Reflective-Mode Phase-Variation Sensor
2021 IEEE Sensors, 2021Paris Vélez +8 more
openaire +1 more source
IEEE Transactions on Microwave Theory and Techniques
This article presents a strategy for implementing highly sensitive planar microwave permittivity sensors operating in transmission and based on the measurement of the phase of the transmission coefficient at a single frequency. The idea is to shunt-connect a sensitive element to the host line exhibiting a zero (resonance) and a pole (antiresonance ...
Xavier Canalias +4 more
openaire +2 more sources
This article presents a strategy for implementing highly sensitive planar microwave permittivity sensors operating in transmission and based on the measurement of the phase of the transmission coefficient at a single frequency. The idea is to shunt-connect a sensitive element to the host line exhibiting a zero (resonance) and a pole (antiresonance ...
Xavier Canalias +4 more
openaire +2 more sources