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Submersible printed split-ring resonator -based sensor for thin-film detection and permittivity characterization

G. Galindo-Romera, F.J. Herraiz-Martínez, J.J. Martínez-Martínez, D. Segovia-Vargas

A split-ring resonator (SRR)-based sensor for the detection of solid thickness and relative permittivity characterization of solid and liquid materials is proposed. The structure is composed of two SRRs hosted in a microstrip transmission line. The sensing principle is based on the detection of the notch introduced by the resonators in the transmission coefficient. Hence, a frequency shift of the notch is related to a change in the effective permittivity of the structure when the sensor is covered with any solid or liquid material. A complete characterization of the sensor, for the three proposed applications, is performed through simulations. Finally, all simulated results are corroborated with measurements. The proposed sensor is implemented in single-layer printed technology, resulting in a low-cost and low-complexity solution. It presents real-time response and high sensitivity. Moreover, it is fully submersible and reusable.


Palabras clave: Effective permittivity, resonator, sensor, splitring resonator (SRR), submersible sensor.


IEEE Sensors Journal. Volumen: 16 Numero: 10 Páginas: 3587-3596

Índice de impacto JCR y cuartil Scopus: 2.512 - Q1 (2016); 2.617 - Q1 (2017).

Referencia DOI: DOI icon 10.1109/JSEN.2016.2538086    

Publicado en papel: Mayo 2016. Publicado on-line: Marzo 2016.



Cita:
G. Galindo-Romera, F.J. Herraiz-Martínez, J.J. Martínez-Martínez, D. Segovia-Vargas. Submersible printed split-ring resonator -based sensor for thin-film detection and permittivity characterization. IEEE Sensors Journal. vol. 16, no. 10, pp. 3587-3596, Mayo 2016. [Online: Marzo 2016]


    Líneas de investigación:
  • *Automatización y Comunicaciones Industriales
  • *Instrumentación Electrónica

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