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Chin. Phys. B, 2016, Vol. 25(8): 084101    DOI: 10.1088/1674-1056/25/8/084101
ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS Prev   Next  

Utra-thin anisotropic transmitting metasurface for polarization beam splitter application

Wen-Long Guo(郭文龙), Guang-Ming Wang(王光明), Shan-Shan Ding(丁姗姗), Hai-Peng Li(李海鹏), Tong Cai(蔡通)
Air and Missile Defense College, Air Force Engineering University, Xi'an 710051, China
Abstract  We report a polarization beam splitter based on phase gradient metasurface for microwave frequency region. The metasurface is constructed by anisotropic cells with independent phase response for differently-polarized waves. Through putting different gradient phases for orthogonally-polarized waves on a focusing metasurface, the anisotropic sample has the ability to enhance gain and split orthogonally-polarized waves. The simulation results indicate that the incident spherical waves are converted into plane waves and split into an x-polarized wave with a refraction angle of -24° and a y-polarized wave with a refraction angle of 37.6° in the y direction. For verification, a metasurface sample with a size of 102.5 mm×102.5 mm is fabricated and measured. The consistence between numerical and experimental results validates the improved gain of 10.5-dB against the feed source and the splitting effect. Moreover, the thickness of the proposed metasurface is 3 mm which is ultra-thin against the wavelength at 15 GHz. The proposed prescription opens a new route to the applications of anisotropic metasurface in microwave band.
Keywords:  metasurface      polarization beam splitter     
Received:  02 December 2015      Published:  05 August 2016
PACS:  41.20.Jb (Electromagnetic wave propagation; radiowave propagation)  
  73.20.Mf (Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))  
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 61372034).
Corresponding Authors:  Guang-Ming Wang     E-mail:  wgming01@sina.com

Cite this article: 

Wen-Long Guo(郭文龙), Guang-Ming Wang(王光明), Shan-Shan Ding(丁姗姗), Hai-Peng Li(李海鹏), Tong Cai(蔡通) Utra-thin anisotropic transmitting metasurface for polarization beam splitter application 2016 Chin. Phys. B 25 084101

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