Accurate Modeling for Wideband Characterization of Nematic Liquid Crystals for Microwave Applications
Accurate Modeling for Wideband Characterization of Nematic Liquid Crystals for Microwave Applications
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DOI：
10.1109/tmtt.2009.2033864
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发表时间：
2009-12-01
影响因子：
4.3
通讯作者：
Mirshekar-Syahkal, Dariush
中科院分区：
文献类型：
--
作者：
James, Richard;Fernandez, F. Anibal;Mirshekar-Syahkal, Dariush
液晶由于其大的双折射和可重构性而成为用于毫米波段通信器件的有吸引力的材料。然而，在这些频率下表征这些材料具有挑战性。这项工作描述了建模工具，已开发的准确分析的液晶取向和波的传播通过不均匀和各向异性的液晶层。它还显示了如何建模已被用于与实验测量相结合，在很宽的频率范围内表征液晶材料。
Liquid crystals are attractive materials for use in millimeter-wave band communications devices due to their large birefringence and reconfigurability. However, characterizing these materials is challenging at these frequencies. This work describes the modeling tools that have been developed for the accurate analysis of the liquid crystal orientation and of the wave propagation through the inhomogeneous and anisotropic liquid crystal layer. It also shows how the modeling has been used in conjunction with experimental measurement to characterize liquid crystal materials over a wide frequency range.