Dual-band polarization angle independent 90° polarization rotator using twisted electric-field-coupled resonators

被引：106

作者：

Shi, Hongyu ^{[1
]}

Zhang, Anxue ^{[1
]}

Zheng, Shi ^{[1
]}

Li, Jianxing ^{[1
]}

Jiang, Yansheng ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Xian 710049, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 03期

基金：

中国国家自然科学基金;

关键词：

CHIRAL METAMATERIAL; CIRCULAR POLARIZER;

D O I：

10.1063/1.4863227

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A bilayered chiral metamaterial is proposed to realize a dual band polarization angle insensitive 90 degrees polarization rotator. The unit cell of the chiral metamaterial is composed by twisted electric field coupled resonators in four-fold rotation symmetry. The simulation and measured results show that this device can work in dual band with an extremely low loss and polarization conversion ratio of more than 99%. The study of the current and electric fields distribution indicates that the cross-polarization transmission is due to both the electric coupling and the magnetic coupling. (C) 2014 AIP Publishing LLC.

引用

页数：4

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