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High-efficiency polarization conversion phase gradient metasurface for wideband anomalous reflection.
- Source :
-
Journal of Applied Physics . 2017, Vol. 122 Issue 1, p1-5. 5p. 1 Illustration, 3 Charts, 4 Graphs. - Publication Year :
- 2017
-
Abstract
- An ultra-wideband polarization conversion metasurface based on S-shaped metallic structure is designed and prepared. The simulation results show that the polarization conversion bandwidth is 14GHz for linearly polarized normally incident electromagnetic waves and the cross-polarized reflectance is more than 99% in the range of 10.3GHz--20.5GHz. On the premise of high reflection efficiency, the reflective phase can be regulated by changing the geometrical parameter of the S-shaped metallic structure. A phase gradient metasurface composed of six periodically arrayed S-shaped unit cells is proposed and further demonstrated both numerically and experimentally. The specular cross-polarization reflection of the phase gradient metasurface is below -10 dB, which shows a good performance on manipulating the direction of the reflected electromagnetic waves. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 122
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 124005938
- Full Text :
- https://doi.org/10.1063/1.4991505