Electronically reconfigurable liquid crystal based mm-wave polarization converter

E. Doumanis; G. Goussetis; R. Dickie; R. Cahill; P. Baine; M. Bain; V. Fusco; J. A. Encinar; G. Toso

doi:10.1109/TAP.2014.2302844

Electronically reconfigurable liquid crystal based mm-wave polarization converter

E. Doumanis^*
, G. Goussetis
, R. Dickie
, R. Cahill
, P. Baine
, M. Bain
, V. Fusco
, J. A. Encinar
, G. Toso

^*Corresponding author for this work

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

67 Citations (Scopus)

Abstract

An electronically tunable reflection polarizer which exploits the dielectric anisotropy of nematic liquid crystals (LC) has been designed, fabricated and measured in a frequency band centered at 130 GHz. The phase agile polarizing mirror converts an incident slant 45 degrees signal upon reflection to right hand circular (RHCP), orthogonal linear (-45 degrees) or left hand circular (LHCP) polarization depending on the value of the voltage biasing the LC mixture. In the experimental set-up this is achieved by applying a low frequency bias voltage of 0 V, 40 V and 89 V respectively, across the cavity containing the LC material.

Original language	English
Pages (from-to)	2302-2307
Number of pages	6
Journal	IEEE Transactions on Antennas and Propagation
Volume	62
Issue number	4
DOIs	https://doi.org/10.1109/TAP.2014.2302844
Publication status	Published - Apr 2014

Keywords

Earth observation
imaging
interferometry
liquid crystals
mm-wave
polarimetric systems
polarizer
remote sensing
space communications
submm-wave
tunable
FREQUENCY-SELECTIVE SURFACE
MILLIMETER
ANTENNA

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10.1109/TAP.2014.2302844

George Goussetis
- G.Goussetishw.acuk
- School of Engineering & Physical Sciences - Professor
- School of Engineering & Physical Sciences, Institute of Sensors, Signals & Systems - Professor
Person: Academic (Research & Teaching)

Cite this

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title = "Electronically reconfigurable liquid crystal based mm-wave polarization converter",

abstract = "An electronically tunable reflection polarizer which exploits the dielectric anisotropy of nematic liquid crystals (LC) has been designed, fabricated and measured in a frequency band centered at 130 GHz. The phase agile polarizing mirror converts an incident slant 45 degrees signal upon reflection to right hand circular (RHCP), orthogonal linear (-45 degrees) or left hand circular (LHCP) polarization depending on the value of the voltage biasing the LC mixture. In the experimental set-up this is achieved by applying a low frequency bias voltage of 0 V, 40 V and 89 V respectively, across the cavity containing the LC material.",

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author = "E. Doumanis and G. Goussetis and R. Dickie and R. Cahill and P. Baine and M. Bain and V. Fusco and Encinar, \{J. A.\} and G. Toso",

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doi = "10.1109/TAP.2014.2302844",

language = "English",

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T1 - Electronically reconfigurable liquid crystal based mm-wave polarization converter

AU - Doumanis, E.

AU - Goussetis, G.

AU - Dickie, R.

AU - Cahill, R.

AU - Baine, P.

AU - Bain, M.

AU - Fusco, V.

AU - Encinar, J. A.

AU - Toso, G.

PY - 2014/4

Y1 - 2014/4

N2 - An electronically tunable reflection polarizer which exploits the dielectric anisotropy of nematic liquid crystals (LC) has been designed, fabricated and measured in a frequency band centered at 130 GHz. The phase agile polarizing mirror converts an incident slant 45 degrees signal upon reflection to right hand circular (RHCP), orthogonal linear (-45 degrees) or left hand circular (LHCP) polarization depending on the value of the voltage biasing the LC mixture. In the experimental set-up this is achieved by applying a low frequency bias voltage of 0 V, 40 V and 89 V respectively, across the cavity containing the LC material.

AB - An electronically tunable reflection polarizer which exploits the dielectric anisotropy of nematic liquid crystals (LC) has been designed, fabricated and measured in a frequency band centered at 130 GHz. The phase agile polarizing mirror converts an incident slant 45 degrees signal upon reflection to right hand circular (RHCP), orthogonal linear (-45 degrees) or left hand circular (LHCP) polarization depending on the value of the voltage biasing the LC mixture. In the experimental set-up this is achieved by applying a low frequency bias voltage of 0 V, 40 V and 89 V respectively, across the cavity containing the LC material.

KW - Earth observation

KW - imaging

KW - interferometry

KW - liquid crystals

KW - mm-wave

KW - polarimetric systems

KW - polarizer

KW - remote sensing

KW - space communications

KW - submm-wave

KW - tunable

KW - FREQUENCY-SELECTIVE SURFACE

KW - MILLIMETER

KW - ANTENNA

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DO - 10.1109/TAP.2014.2302844

M3 - Article

SN - 0018-926X

VL - 62

SP - 2302

EP - 2307

JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

IS - 4

ER -

Electronically reconfigurable liquid crystal based mm-wave polarization converter

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Keywords

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George Goussetis

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