Electrical characterisation of liquid crystals at millimetre wavelengths using frequency selective surfaces

R. Dickie; P. Baine; R. Cahill; E. Doumanis; G. Goussetis; S. Christie; N. Mitchell; V. Fusco; D. Linton; J. Encinar; R. Dudley; D. Hindley; M. Naftaly; M. Arrebola; G. Toso

doi:10.1049/el.2012.1061

Electrical characterisation of liquid crystals at millimetre wavelengths using frequency selective surfaces

R. Dickie^*, P. Baine, R. Cahill, E. Doumanis, G. Goussetis, S. Christie, N. Mitchell, V. Fusco, D. Linton, J. Encinar, R. Dudley, D. Hindley, M. Naftaly, M. Arrebola, G. Toso

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

42 Citations (Scopus)

Abstract

The accurate measurement of the permittivity, loss tangent and dielectric anisotropy DC bias dependence for two different liquid crystal (LC) materials in the frequency range 140-165 GHz is described. The electrical characteristics are obtained by curve fitting computed transmission coefficients to the experimental spectral response of a new class of electronically reconfigurable frequency selective surface. The periodic structure is designed to yield bandpass filter characteristics with and without an applied bias control voltage in order to measure the tunability of the LC material which is inserted in a 705 mu m-thick cavity.

Original language	English
Pages (from-to)	611-612
Number of pages	2
Journal	Electronics Letters
Volume	48
Issue number	11
DOIs	https://doi.org/10.1049/el.2012.1061
Publication status	Published - 24 May 2012

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Dickie, R., Baine, P., Cahill, R., Doumanis, E., Goussetis, G., Christie, S., Mitchell, N., Fusco, V., Linton, D., Encinar, J., Dudley, R., Hindley, D., Naftaly, M., Arrebola, M., & Toso, G. (2012). Electrical characterisation of liquid crystals at millimetre wavelengths using frequency selective surfaces. Electronics Letters, 48(11), 611-612. https://doi.org/10.1049/el.2012.1061

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abstract = "The accurate measurement of the permittivity, loss tangent and dielectric anisotropy DC bias dependence for two different liquid crystal (LC) materials in the frequency range 140-165 GHz is described. The electrical characteristics are obtained by curve fitting computed transmission coefficients to the experimental spectral response of a new class of electronically reconfigurable frequency selective surface. The periodic structure is designed to yield bandpass filter characteristics with and without an applied bias control voltage in order to measure the tunability of the LC material which is inserted in a 705 mu m-thick cavity.",

author = "R. Dickie and P. Baine and R. Cahill and E. Doumanis and G. Goussetis and S. Christie and N. Mitchell and V. Fusco and D. Linton and J. Encinar and R. Dudley and D. Hindley and M. Naftaly and M. Arrebola and G. Toso",

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Dickie, R, Baine, P, Cahill, R, Doumanis, E, Goussetis, G, Christie, S, Mitchell, N, Fusco, V, Linton, D, Encinar, J, Dudley, R, Hindley, D, Naftaly, M, Arrebola, M & Toso, G 2012, 'Electrical characterisation of liquid crystals at millimetre wavelengths using frequency selective surfaces', Electronics Letters, vol. 48, no. 11, pp. 611-612. https://doi.org/10.1049/el.2012.1061

TY - JOUR

T1 - Electrical characterisation of liquid crystals at millimetre wavelengths using frequency selective surfaces

AU - Dickie, R.

AU - Baine, P.

AU - Cahill, R.

AU - Doumanis, E.

AU - Goussetis, G.

AU - Christie, S.

AU - Mitchell, N.

AU - Fusco, V.

AU - Linton, D.

AU - Encinar, J.

AU - Dudley, R.

AU - Hindley, D.

AU - Naftaly, M.

AU - Arrebola, M.

AU - Toso, G.

PY - 2012/5/24

Y1 - 2012/5/24

N2 - The accurate measurement of the permittivity, loss tangent and dielectric anisotropy DC bias dependence for two different liquid crystal (LC) materials in the frequency range 140-165 GHz is described. The electrical characteristics are obtained by curve fitting computed transmission coefficients to the experimental spectral response of a new class of electronically reconfigurable frequency selective surface. The periodic structure is designed to yield bandpass filter characteristics with and without an applied bias control voltage in order to measure the tunability of the LC material which is inserted in a 705 mu m-thick cavity.

AB - The accurate measurement of the permittivity, loss tangent and dielectric anisotropy DC bias dependence for two different liquid crystal (LC) materials in the frequency range 140-165 GHz is described. The electrical characteristics are obtained by curve fitting computed transmission coefficients to the experimental spectral response of a new class of electronically reconfigurable frequency selective surface. The periodic structure is designed to yield bandpass filter characteristics with and without an applied bias control voltage in order to measure the tunability of the LC material which is inserted in a 705 mu m-thick cavity.

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DO - 10.1049/el.2012.1061

M3 - Article

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VL - 48

SP - 611

EP - 612

JO - Electronics Letters

JF - Electronics Letters

IS - 11

ER -

Electrical characterisation of liquid crystals at millimetre wavelengths using frequency selective surfaces

Abstract

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