一种基于表面结构的高效超薄透射型圆偏振变换器

IF 1.5 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

EPJ Applied Metamaterials Pub Date : 2021-01-01 DOI:10.1051/EPJAM/2021002

Peng Xu, W. Jiang, Xiao Cai, Y. Gou, T. Cui

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引用次数: 0

摘要

本文提出、设计并制造了一种基于人工工程表面的超薄高效圆偏振变换器。该变换器由带交叉槽的双层周期表面结构组成。顶层和底层印刷在F4B基板的两侧，并通过金属通孔连接。该变换器可以在传输模式下以接近单位的效率将右手圆极化入射电磁波转换为左手圆极化入射电磁波，反之亦然。我们基于数值模拟和等效电路理论解释了转换机理。在工作频段内，实测结果与仿真结果吻合较好。这种超薄极化变换器可用于无线微波通信、遥感和电磁成像等需要圆极化分集的领域。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A high-efficiency and ultrathin transmission-type circular polarization converter based on surface structure

In this paper, we propose, design and fabricate a kind of ultrathin and high-efficiency circularly polarization converter based on artificially engineered surfaces in the transmission mode. The converter is composed of double-layer periodic surface structures with cross slots. The top and bottom layers are printed on both sides of the F4B substrate and connected by metallic via holes. The proposed converter can transform the right-handed circularly polarized incident electromagnetic (EM) wave to a left-handed circularly-polarized one with near-unity efficiency in the transmission mode, or vice versa. We explain the conversion mechanism based on numerical simulations and equivalent circuit (EC) theory. The measured result has a good agreement with the simulated one in the working frequency band. Such ultrathin polarization converters can be used in wireless microwave communication, remote sensing, and EM imaging where circularly polarization diversity is needed.

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来源期刊

EPJ Applied Metamaterials MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

3.10

自引率

6.20%

发文量

审稿时长

8 weeks