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Highly Sensitive Coplanar Waveguide (CPW) reflective-mode phase-variation permittivity sensors based on weakly coupled Step-Impedance Resonators (SIRs)
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Casacuberta Orta, Pau (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Vélez Rasero, Paris (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Muñoz Enano, Jonathan (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Su, Lijuan (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Martín, Ferran (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
This article presents a small-sized and highly sensitive planar microwave permittivity sensor based on a pair of weakly coupled step-impedance resonators (SIRs), the sensing elements. The sensor, a one-port structure, is implemented in coplanar waveguide (CPW) technology, and it operates in the reflection mode. [...]
2024 - 10.1109/TMTT.2023.3308200
IEEE transactions on microwave theory and techniques, Vol. 72, no. 3 (March 2024) , p. 1739-1753
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10 p, 1.1 MB |
Phase-Variation Microwave Displacement Sensor With Good Linearity and Application to Breath Rate Monitoring
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Karami-Horestani, Amirhossein (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Paredes, Ferran (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Martín, Ferran (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
This article presents a novel highly linear reflective-mode displacement sensor based on planar microwave technology. The sensor consists of two parts: 1) the stator, or reader, a one-port transmission line terminated with a matched load and 2) the movable part, or tag, a dielectric slab with an electric LC (ELC) resonator etched on it. [...]
2023 - 10.1109/JSEN.2023.3307575
IEEE sensors journal, Vol. 23, Issue 19 (October 2023) , p. 22486-22495
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