Novel Sensors Based on the Symmetry Properties of Split Ring Resonators (SRRs)
Naqui Garolera, Jordi (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
Durán-Sindreu, Miguel (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
Martín, Ferran, (Martín Antolín) (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)

Date:	2011
Abstract:	The symmetry properties of split ring resonators (SRRs) are exploited for the implementation of novel sensing devices. The proposed structure consists of a coplanar waveguide (CPW) loaded with movable SRRs on the back substrate side. It is shown that if the SRRs are placed with the slits aligned with the symmetry plane of the CPW, the structure is transparent to signal propagation. However, if the symmetry is broken, a net axial magnetic field can be induced in the inner region of the SRRs, and signal propagation is inhibited at resonance. The proposed structures can be useful as alignment sensors, position sensors and angle sensors. This novel sensing principle is validated through experiment.
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Split ring resonators ; Metamaterials ; Coplanar waveguide ; Position sensors ; Angle sensors
Published in:	Sensors (Basel, Switzerland), Vol. 11 (2011) , p. 7545-7553, ISSN 1424-8220

DOI: 10.3390/s110807545
PMID: 22164031

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