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

被引：34

作者：

Kowerdziej, R. ^{[1
]}

Parka, J. ^{[1
,2
]}

Krupka, J. ^{[2
]}

Olifierczuk, M. ^{[1
]}

Nowinowski-Kruszelnicki, E. ^{[1
]}

Jaroszewicz, L. ^{[1
]}

Chojnowska, O. ^{[3
]}

机构：

[1] Mil Univ Technol, Inst Appl Phys, PL-00908 Warsaw, Poland

[2] Warsaw Univ Technol, Inst Microelect & Optoelect, PL-00665 Warsaw, Poland

[3] Mil Univ Technol, Inst Chem, PL-00908 Warsaw, Poland

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 17期

关键词：

COMPLEX PERMITTIVITY MEASUREMENTS; PHASE-SHIFTER; BAND;

D O I：

10.1063/1.4826504

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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. (C) 2013 AIP Publishing LLC.

引用

页数：4

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