Title :
A miniaturized near-field sensor based on a double-sided spiral split-ring resonator for dielectric characterization
Author :
Benkhaoua, L. ; Benhabiles, M.T. ; Riabi, M.L.
Author_Institution :
Lab. Electromagn. et Telecommun., Univ. Constantine 1, Constantine, Algeria
Abstract :
A new double-sided spiral split-ring resonator (DSS-SRR) is proposed and implemented as a near field sensor for measuring the relative permittivity εr of unknown materials. This sensor is based on the measurement of the resonance frequency shift of a tapered microstrip line fed DSS-SRR. In contrast to other sensors based on the use of conventional SRRs, the proposed sensor requires a very small amount of sample due to its miniature sensitive area, and it provides a high sensitivity with lower frequency due to the small electric size of the DSS-SRR. Examples of operation of the sensor with four dielectric samples are presented to reveal the potentiality of the DSS-SRR for biosensing applications.
Keywords :
biomedical engineering; electric sensing devices; microstrip lines; permittivity; resonators; sensitivity; DSS-SRR electric size; biosensing application; dielectric characterization; double-sided spiral split-ring resonator; miniaturized near-field sensor; permittivity; resonance frequency shift measurement; sensitivity; tapered microstrip line fed DSS-SRR; Decision support systems; Dielectrics; Microstrip; Microwave theory and techniques; Permittivity; Resonant frequency; Sensitivity; Dielectric Characterization; Metamaterial; Microwave Sensor; Split-Ring Resonator;
Conference_Titel :
RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-Bio), 2014 IEEE MTT-S International Microwave Workshop Series on
Conference_Location :
London
Print_ISBN :
978-1-4799-5445-2
DOI :
10.1109/IMWS-BIO.2014.7032399
