Multiband linear and circular polarization converting anisotropic metasurface for wide incidence angles

In this paper, a metasurface-based multi-band polarization converter is designed and demonstrated. The designed metasurface not only converts horizontal polarization into vertical and vice versa, but also exhibits linear-to-circular and circular-to-linear polarization conversion. The proposed design...

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Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 2020-02, Vol.53 (9), p.95005
Main Authors: Khan, M Ismail, Khalid, Zobaria, Tanoli, Shujat Ali Khan, Tahir, Farooq A, Hu, Bin
Format: Article
Language:English
Subjects:
anisotropic
magentic resoance
metasurface
polarization
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Summary:In this paper, a metasurface-based multi-band polarization converter is designed and demonstrated. The designed metasurface not only converts horizontal polarization into vertical and vice versa, but also exhibits linear-to-circular and circular-to-linear polarization conversion. The proposed design efficiently converts linearly polarized incident wave into cross-polarized wave within three frequency bands: 6.3-6.6 GHz, 9-10.8 GHz and 15.2-18.7 GHz. Similarly, linear-to-circular and circular-to-linear polarization conversion is achieved in six frequency bands: 6-6.1 GHz, 6.9-7 GHz, 7.1-7.2 GHz, 8-8.7 GHz, 11.3-13.4 GHz and 13.5-14.5 GHz. Moreover, both linear-cross and linear-to-circular polarization conversion maintain their conversion efficiencies against variations in the incidence angle. The physical mechanism is explained using surface current distribution. The proposed metasurface is validated by full wave simulation and experimental measurements.
ISSN:0022-3727
1361-6463
DOI:10.1088/1361-6463/ab5736