中国物理B ›› 2016, Vol. 25 ›› Issue (8): 84101-084101.doi: 10.1088/1674-1056/25/8/084101
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
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
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
摘要： 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.
中图分类号: (Electromagnetic wave propagation; radiowave propagation)
- 41.20.Jb