Dual-band polarization angle independent 90 degrees polarization rotator using chiral metamaterial
Dual-band polarization angle independent 90 degrees polarization rotator using chiral metamaterial
复制标题
使用手性超材料的双波段偏振角独立 90 度偏振旋转器
DOI：
10.1587/elex.13.20160583
复制
发表时间：
2016
影响因子：
0.8
通讯作者：
Han Xian-Hua
中科院分区：
文献类型：
--
作者：
Cao Hailin;Chen Huan;Wu Xiaodong;Pi Yuwei;Liu Junjie;Xu Hang;Tan Xiaoheng;Lei Jianmei;Han Xian-Hua
本文提出的与偏振角度无关的双频 90 度偏振旋转器由双层手性超材料组成，该材料由 C4 对称的扭曲电容负载 I 形电场耦合谐振器组成。模拟和测量结果一致表明，该旋转器在双频段条件下表现出极低的损耗和高偏振比。我们还系统地研究了负载结构的电磁响应对几何参数的依赖性。所提出的简单、易于制造的手性超材料模型可用于进一步的偏振旋转器应用。
The polarization angle-independent, dual-band, 90 degrees polarization rotator presented in this paper consisted of a bilayered chiral metamaterial composed of twisted capacity-loaded I-shaped electric field-coupled resonators in C4 symmetry. Simulated and measured results consistently demonstrated that the rotator exhibited extremely low loss and high polarization ratio under dual-band conditions. We also systematically investigated the dependence of the electromagnetic response of the loaded structure on the geometric parameters. The proposed simple, easily fabricated model of a chiral metamaterial may be used in further polarization rotator applications.