太赫兹区域超宽带偏振旋转器设计

2019 11th International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2019-10-01 DOI:10.1109/WCSP.2019.8928138

W. Hong, Xinlong Li, Jianfeng Zhu, Shufang Li, Tingxiao Cai, Huanhuan Lin, Hongjie Liu, Yanqing Wei

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引用次数: 0

摘要

提出并研究了一种具有极宽带宽和高转换率的三层超材料偏振旋转器。所设计的结构由上下两侧的两个电偶极子谐振极化选择器和中间填充两层介电硅作为间隔层的十字形极化变换器组成。所提出的结构形成级联的类法布里-珀罗谐振腔，导致两个正交线极化波之间的偏振转换增强。所设计的结构经过优化，在谐振频率下具有极宽的带宽、锐利的抑制阻带和99.9%的最大转换率。

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Ultra-broadband Polarization Rotator Design in Terahertz Region

A three layered metamaterial functions as polarization rotator with extremely broad bandwidth and high conversion ratio is proposed and investigated in this paper. The designed structure is composed of two electric dipole resonant polarization selectors on the top and bottom sides and a cross-shaped polarization converter in the middle filled with two dielectric layers of silica as spacers. The proposed structure forms a cascaded Fabry-Perot-like resonance cavity, leading to the enhancement of polarization conversion between two orthogonal linearly polarized waves. The designed structure is optimized to achieve an extremely broad bandwidth, sharp rejection stop-band, and maximum conversion ratio of 99.9% at the resonant frequency.

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来源期刊

2019 11th International Conference on Wireless Communications and Signal Processing (WCSP)

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