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Accurate modelling for the analysis and design of liquid-crystal-based microwave devices

Seddon, L; James, R; Day, SE; Fernandez, FA; Deo, P; Mirshekar-Syahkal, D; (2017) Accurate modelling for the analysis and design of liquid-crystal-based microwave devices. In: Tong, K-F, (ed.) Proceedings of 2017 International Workshop on Electromagnetics (iWEM 2017): Applications and Student Innovation Competition. (pp. pp. 105-107). IEEE: London, United Kingdom. Green open access

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Abstract

Liquid crystal substrates have been shown to provide the means to develop low-cost, reconfigurable, adaptive and tuneable microwave and MM-wave devices for mobile and wireless communication systems. However, techniques for the characterisation of materials, device fabrication and design are necessary in order to take maximum advantage of the possibilities that these materials offer. This includes appropriate modelling methods to simulate accurately the switching behaviour of the liquid crystal and the characteristics of the wave propagation through the devices, taking full consideration of the point-by-point variation of the material tensor permittivity. We describe these techniques here and show their application in the design of a meander-line phase shifter.

Type: Proceedings paper
Title: Accurate modelling for the analysis and design of liquid-crystal-based microwave devices
Event: iWEM 2017, International workshop on electromagnetics: applications and student innovetion competition
Location: London
Dates: 30 May 2017 - 01 June 2017
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/iWEM.2017.7968813
Publisher version: http://doi.org/10.1109/iWEM.2017.7968813
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Liquid crystals; microwave devices; tuneable microwave devices; reconfigurable microwave devices
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10039351
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