Title :
Tunable hairpin resonator based on liquid crystal
Author :
Mirfatah, A. ; Laurin, J.J.
Author_Institution :
Poly-Grames Res. Centre, Ecole Polytech., Montreal, QC
Abstract :
A novel tunable resonator with using liquid crystal as a dielectric is proposed. Due to the bias-dependent permittivity of an anisotropic nematic liquid crystal embedded in the resonator´s multilayer substrate, a differential phase shift of 180deg in the reflection coefficient is predicted in X band. The resonator was fabricated and the measured characteristics agree very well with the simulated data.
Keywords :
dielectric materials; dielectric resonators; liquid crystal devices; microwave devices; microwave photonics; nematic liquid crystals; optical resonators; permittivity; reflectivity; X band; anisotropic nematic liquid crystal; differential phase shift; multilayer substrate; permittivity; reflection coefficient; tunable hairpin resonator; Anisotropic magnetoresistance; Dielectric liquids; Dielectric resonator antennas; Dielectric substrates; Liquid crystals; Nonhomogeneous media; Permittivity; Radio frequency; Tunable circuits and devices; Voltage;
Conference_Titel :
Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting, 2009. ANTEM/URSI 2009. 13th International Symposium on
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4244-2979-0
Electronic_ISBN :
978-1-4244-2980-6
DOI :
10.1109/ANTEMURSI.2009.4805086
