Dielectric properties of highly anisotropic nematic liquid crystals for tunable microwave components

R. Kowerdziej , Janusz Parka , Jerzy Krupka , M. Olifierczuk , E Nowinowski-Kruszelnicki , L. Jaroszewicz , O. Chojnowska

Abstract

In this Letter, we report on measurements of the complex permittivity of highly anisotropic nematic liquid crystals at microwave frequencies as a function of the AC bias voltage. Permittivity measurements have been performed by the split post dielectric resonator technique. The experiments have shown that when the AC bias voltage increases from 0 to 8 V, the real part of the permittivity of these liquid crystals changes by up to 28%. The tunability and the relatively low dielectric losses observed in these liquid crystal mixtures mean that they are ideal materials for the design of tunable microwave components.
Author R. Kowerdziej - [Wojskowa Akademia Techniczna]
R. Kowerdziej,,
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, Janusz Parka (FEIT / MO)
Janusz Parka,,
- The Institute of Microelectronics and Optoelectronics
, Jerzy Krupka (FEIT / MO)
Jerzy Krupka,,
- The Institute of Microelectronics and Optoelectronics
, M. Olifierczuk - [Wojskowa Akademia Techniczna]
M. Olifierczuk,,
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, E Nowinowski-Kruszelnicki - [Wojskowa Akademia Techniczna]
E Nowinowski-Kruszelnicki,,
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, L. Jaroszewicz - [Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego (WAT)]
L. Jaroszewicz,,
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- Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
, O. Chojnowska - [Wojskowa Akademia Techniczna]
O. Chojnowska,,
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Journal seriesApplied Physics Letters, ISSN 0003-6951
Issue year2013
Vol103
No172902
Pages1-5
Publication size in sheets0.5
ASJC Classification3101 Physics and Astronomy (miscellaneous)
DOIDOI:10.1063/1.4826504
URL http://scitation.aip.org/content/aip/journal/apl/103/17/10.1063/1.4826504
Languageen angielski
Score (nominal)40
Score sourcejournalList
ScoreMinisterial score = 40.0, 25-05-2020, ArticleFromJournal
Ministerial score (2013-2016) = 40.0, 25-05-2020, ArticleFromJournal
Publication indicators Scopus Citations = 17; WoS Citations = 17; GS Citations = 22.0; Scopus SNIP (Source Normalised Impact per Paper): 2013 = 1.634; WoS Impact Factor: 2013 = 3.515 (2) - 2013=3.739 (5)
Citation count*22 (2020-09-06)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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