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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 (Martín Antolín) (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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16 p, 3.8 MB |
Strategies to enhance the data density in synchronous electromagnetic encoders
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Paredes, Ferran (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Karami-Horestani, Amirhossein (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Martín, Ferran (Martín Antolín) (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
In this paper, we report two different strategies to enhance the data density in electromagnetic encoders with synchronous reading. One approach uses a periodic chain of rectangular metallic patches (clock chain) that determines the encoder velocity, and dictates the instants of time for retrieving the bits of the identification (ID) code. [...]
2022 - 10.3390/s22124356
Sensors (Basel, Switzerland), Vol. 22, Issue 12 (June 2022) , art. 4356
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3 p, 2.4 MB |
Compact coplanar waveguide bandpass filter based on coupled S-shaped split ring resonators
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Karami-Horestani, Ali (University of Adelaide (Adelaide, Austràlia). School of Electrical & Electronic Engineering) ;
Durán-Sindreu, Miguel (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Naqui Garolera, Jordi (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Fumeaux, Cristophe (University of Adelaide (Adelaide, Austràlia). School of Electrical & Electronic Engineering) ;
Martín, Ferran, (Martín Antolín) (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
This letter is focused on the application of coupled single-layer S-shaped split ring resonators (S-SRRs) to the design of highly compact bandpass filters in coplanar waveguide (CPW) technology. S-SRRs have been previously demonstrated as miniaturized resonators, particularly suited for applications in conjunction with coplanar line geometries. [...]
2015 - 10.1002/mop.29029
Microwave and optical technology letters, Vol. 57, No. 5 (May 2015) , p. 1113-1116
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3 p, 3.2 MB |
S-shaped complementary split ring resonators and their application to compact differential bandpass filters with common-mode suppression
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Karami-Horestani, Ali (University of Adelaide (Adelaide, Austràlia). School of Electrical & Electronic Engineering) ;
Durán-Sindreu, Miguel (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Naqui Garolera, Jordi (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Fumeaux, Cristophe (University of Adelaide (Adelaide, Austràlia). School of Electrical & Electronic Engineering) ;
Martín, Ferran, (Martín Antolín) (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
This letter presents an S-shaped complementary split ring resonator (S-CSRR) for application in compact differential filters. The working principle of the proposed S-CSRR is explained and a circuit model is developed and validated through electromagnetic simulations. [...]
2014 - 10.1109/LMWC.2013.2291853
IEEE microwave and wireless components letters, Vol. 24 No. 3 (March 2014) , p. 150-152
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17 p, 1.4 MB |
Two-dimensional alignment and displacement sensor based on movable broadside-coupled split ring resonators
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Karami-Horestani, Ali (University of Adelaide (Adelaide, Austràlia). School of Electrical & Electronic Engineering) ;
Naqui Garolera, Jordi (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Shaterian, Zahra (University of Adelaide (Adelaide, Austràlia). School of Electrical & Electronic Engineering) ;
Abbott, Derek (University of Adelaide (Adelaide, Austràlia). School of Electrical & Electronic Engineering) ;
Fumeaux, Cristophe (University of Adelaide (Adelaide, Austràlia). School of Electrical & Electronic Engineering) ;
Martín, Ferran, (Martín Antolín) (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
This paper proposes a two-dimensional alignment and displacement sensor based on movable broadside-coupled split ring resonators (BC-SRRs). As a basis for this sensor, a one-dimensional displacement sensor based on a microstrip line loaded with BC-SRRs is presented firstly. [...]
2014 - 10.1016/j.sna.2014.01.030
Sensors and actuators A, Vol. 210 (April 2014) , p. 18-24
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2 p, 248.0 KB |
Two-dimensional displacement and alignment sensor based on reflection coefficients of open microstrip lines loaded with split ring resonators
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Karami-Horestani, Ali (University of Adelaide (Adelaide, Austràlia). School of Electrical & Electronic Engineering) ;
Naqui Garolera, Jordi (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Abbott, Derek (University of Adelaide (Adelaide, Austràlia). School of Electrical & Electronic Engineering) ;
Fumeaux, Cristophe (University of Adelaide (Adelaide, Austràlia). School of Electrical & Electronic Engineering) ;
Martín, Ferran, (Martín Antolín) (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
A two-dimensional displacement and alignment sensor is proposed based on two open-ended transmission lines, each loaded with a split ring resonator (SRR). In this arrangement, the depth of resonance-induced notches in the reflection coefficients can be used to sense a displacement of the loading SRRs in two orthogonal directions. [...]
2014 - 10.1049/el.2014.0572
Electronics letters, Vol. 50, no. 8 (April 2014) , p. 620-622
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