Effective dielectric constant of top grounded coplanar waveguide on liquid crystal superstrate

Effective dielectric constant of top grounded coplanar waveguide on liquid crystal superstrate
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液晶基板上顶部接地共面波导的有效介电常数

DOI:
10.1002/mop.27564
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发表时间:
2013
影响因子:
1.5
通讯作者:
Bulja S
Bulja S
中科院分区:
工程技术4区
文献类型:
--
作者:
Bulja S

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在30-60 GHz频率范围内研究了具有液晶(LC)覆盖层的顶部接地共面波导的有效介电常数。使用两种双相液晶混合物,即E7和MDA-00 - 3506作为覆盖物。测量结果表明,MDA-00 - 3506的每毫米相移值高于其E7对应物。特别是,MDA-00 - 3506提供3.14°/mm,而E7在60 GHz时提供2.79°/mm。从测量和计算机模拟的介电常数的结果被发现同意在5%以内。对于建模,一个全面的有限元软件包预测在不同的偏置电压和频率的LC分子和有效的介电常数的局部排列。© 2013 Wiley Periodicals,Inc.微波光学技术快报55:1416-1418,2013;在wileyonlinelibrary.com在线查看这篇文章。DOI 10.1002/mop.27564
The effective dielectric constant of the top grounded coplanar waveguide with a liquid crystal (LC) superstrate for phase shifting applications is investigated in the frequency range of 30–60 GHz. Two nematic LC mixtures, namely E7 and MDA‐00‐3506, are used as the superstrate. The measurements show that MDA‐00‐3506 offers higher values of phase shift per millimeter than its E7 counterpart. In particular, the MDA‐00‐3506 provides 3.14°/mm, whereas E7 gives 2.79°/mm at 60 GHz. The results of the dielectric constants from measurement and computer modeling are found to agree to within 5%. For the modeling, a comprehensive finite element package predicting the local alignment of LC molecules and effective dielectric constant at different bias voltages and frequencies are used. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1416–1418, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27564
DOI: 10.1109/tmtt.2010.2054332
发表时间: 2010-12-01
影响因子: 4.3
作者:
Bulja, Senad;Mirshekar-Syahkal, Dariush;Fernandez, F. Anibal
通讯作者: Fernandez, F. Anibal
DOI: 10.1109/tmtt.2010.2050094
发表时间: 2010-07-01
影响因子: 4.3
作者:
Bulja, Senad;Mirshekar-Syahkal, Dariush
通讯作者: Mirshekar-Syahkal, Dariush
DOI: 10.1109/rws.2010.5434253
发表时间: 2010
期刊: --
影响因子: --
作者:
Bulja S
通讯作者: Bulja S