Ultra-wideband reflective polarization converter based on anisotropic metasurface

doi:10.1088/1674-1056/25/8/088101

中国物理B ›› 2016, Vol. 25 ›› Issue (8): 88101-088101.doi: 10.1088/1674-1056/25/8/088101

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇下一篇

Ultra-wideband reflective polarization converter based on anisotropic metasurface

Jia-Liang Wu(吴家梁), Bao-Qin Lin(林宝勤), Xin-Yu Da(达新宇)

Information and Navigation College, Air Force Engineering University, Xi'an 710077, China

收稿日期:2015-12-17 修回日期:2016-04-04 出版日期:2016-08-05 发布日期:2016-08-05
通讯作者: Jia-Liang Wu E-mail:wujia2538@126.com
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61471387, 61271250, and 61571460).

Ultra-wideband reflective polarization converter based on anisotropic metasurface

Jia-Liang Wu(吴家梁), Bao-Qin Lin(林宝勤), Xin-Yu Da(达新宇)

Information and Navigation College, Air Force Engineering University, Xi'an 710077, China

Received:2015-12-17 Revised:2016-04-04 Online:2016-08-05 Published:2016-08-05
Contact: Jia-Liang Wu E-mail:wujia2538@126.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61471387, 61271250, and 61571460).

摘要/Abstract

摘要： In this paper, we propose an ultra-wideband reflective linear cross-polarization converter based on anisotropic metasurface. Its unit cell is composed of a square-shaped resonator with intersectant diagonal and metallic ground sheet separated by dielectric substrate. Simulated results show that the converter can generate resonances at four frequencies under normal incident electromagnetic (EM) wave, leading to the bandwidth expansion of cross-polarization reflection. For verification, the designed polarization converter is fabricated and measured. The measured and simulated results agree well with each other, showing that the fabricated converter can convert x- or y-polarized incident wave into its cross polarized wave in a frequency range from 7.57 GHz to 20.46 GHz with a relative bandwidth of 91.2%, and the polarization conversion efficiency is greater than 90%. The proposed polarization converter has a simple geometry but an ultra wideband compared with the published designs, and hence possesses potential applications in novel polarization-control devices.

关键词: polarization converter, anisotropic metasurface, ultra-wideband

Abstract: In this paper, we propose an ultra-wideband reflective linear cross-polarization converter based on anisotropic metasurface. Its unit cell is composed of a square-shaped resonator with intersectant diagonal and metallic ground sheet separated by dielectric substrate. Simulated results show that the converter can generate resonances at four frequencies under normal incident electromagnetic (EM) wave, leading to the bandwidth expansion of cross-polarization reflection. For verification, the designed polarization converter is fabricated and measured. The measured and simulated results agree well with each other, showing that the fabricated converter can convert x- or y-polarized incident wave into its cross polarized wave in a frequency range from 7.57 GHz to 20.46 GHz with a relative bandwidth of 91.2%, and the polarization conversion efficiency is greater than 90%. The proposed polarization converter has a simple geometry but an ultra wideband compared with the published designs, and hence possesses potential applications in novel polarization-control devices.

Key words: polarization converter, anisotropic metasurface, ultra-wideband

中图分类号: (Metamaterials for chiral, bianisotropic and other complex media)

81.05.Xj

42.25.Bs (Wave propagation, transmission and absorption) 41.20.Jb (Electromagnetic wave propagation; radiowave propagation)

吴家梁, 林宝勤, 达新宇. Ultra-wideband reflective polarization converter based on anisotropic metasurface[J]. 中国物理B, 2016, 25(8): 88101-088101.

Jia-Liang Wu(吴家梁), Bao-Qin Lin(林宝勤), Xin-Yu Da(达新宇). Ultra-wideband reflective polarization converter based on anisotropic metasurface[J]. Chin. Phys. B, 2016, 25(8): 88101-088101.

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Ultra-wideband reflective polarization converter based on anisotropic metasurface

Ultra-wideband reflective polarization converter based on anisotropic metasurface

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