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https://hdl.handle.net/2440/83778
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Type: | Conference paper |
Title: | Interlayer tuning of X-band frequency-selective surface using liquid crystal |
Author: | Ebrahimi, A. Yaghmaee, P. Withayachumnankul, W. Fumeaux, C. Al-Sarawi, S. Abbott, D. |
Citation: | 2013 Asia-Pacific Microwave Conference Proceedings (APMC): pp.1118-1120 |
Publisher: | IEEE |
Publisher Place: | USA |
Issue Date: | 2013 |
Series/Report no.: | Asia Pacific Microwave Conference-Proceedings |
ISBN: | 9781479914722 |
Conference Name: | Asia-Pacific Microwave Conference (2013 : Seoul, Korea) |
Statement of Responsibility: | Amir Ebrahimi, Pouria Yaghmaee, Withawat Withayachumnankul, Christophe Fumeaux, Said Al-Sarawi and Derek Abbott |
Abstract: | In this paper, a new concept of a voltage-controlled tunable frequency-selective surface (FSS) is introduced based on liquid crystal technology. The designed FSS consists of two periodically patterned metallic layers, separated by a thin dielectric substrate. Tunability is achieved by integrating liquid crystal cells within the substrate for each unit cell, producing interlayer capacitors. By applying a bias voltage between the front and back metallic arrays, the anisotropy axis of the liquid crystal molecules can be re-oriented, and thus the effective relative permittivity of the liquid crystals can be modified to cause a frequency shift in transmission response. Electromagnetic simulations predict 5.6% of continuous frequency tuning for this multi-layer FSS. |
Keywords: | Frequency-selective surface liquid crystal tunable reconfigurable. |
Rights: | ©2013 IEEE |
DOI: | 10.1109/APMC.2013.6695040 |
Published version: | http://dx.doi.org/10.1109/apmc.2013.6695040 |
Appears in Collections: | Aurora harvest 4 Electrical and Electronic Engineering publications |
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