A multi-layered tunable stepped-impedance resonator for liquid crystal characterization
Date
2012
Authors
Yaghmaee, P.
Karami Horestani, A.
Bates, B.
Fumeaux, C.
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Conference paper
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Proceedings of the 2012 Asia-Pacific Microwave Conference, held in Kaohsiung, Taiwan, 4-7 December, 2012: pp.776-778
Statement of Responsibility
Pouria Yaghmaee, Ali K. Horestani, Bevan Bates and Christophe Fumeaux
Conference Name
Asia-Pacific Microwave Conference (2012 : Kaohsiung, Taiwan)
Abstract
The characterization of a tunable band-pass filter based on stepped-impedance resonator (SIR) is presented in this work. The designed filter uses a half-wavelength resonator patch above a multi-layer substrate, with liquid crystal as its central layer, making it continuously tunable at frequencies around S-band. Two liquid crystal samples are considered for three different approaches: lumped-element circuit simulation, full-wave electromagnetic simulations and prototype measurements. The results demonstrate the possibility of using a simple lumped-element circuit simulation for rapid calculation of the performances of liquid crystal devices at microwave frequencies.
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© Copyright 2012 IEEE - All rights reserved.