ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Ultra-thin two-dimensional transmissive anisotropic metasurfaces for polarization filter and beam steering application |
Wen-Long Guo(郭文龙), Guang-Ming Wang(王光明), Hai-Peng Li(李海鹏), Kun Zhang(张昆), Tong Cai(蔡通) |
Air and Missile Defense College, Air Force Engineering University, Xi'an 710051, China |
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Abstract We propose an anisotropic planar transmitting metasurface, which has the ability to manipulate orthogonally-polarized electromagnetic waves in the reflection and refraction modes respectively. The metasurface is composed of four layered rectangular patches spaced by three layered dielectric isolators each with a thickness of 0.15λ0 at 15 GHz. By tailoring the sizes of the patches, the metasurface functions as a band-stop filter for the y-polarzied wave and a band-pass filter for the x-polarized wave operating from 14 GHz to 16 GHz. Moreover the phases of the transmitting x-polarized wave can be modulated at about 15 GHz, which contributes to beam steering according to the general refraction law. Experimental results are in good accordance with the simulated ones, in which the reflection efficiency is almost 100% while the transmission efficiency of the x-polarized wave reaches 80% at 15 GHz. Besides, the transmitted x-polarized wave is effectively manipulated from 14 GHz to 16 GHz.
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Received: 29 February 2016
Revised: 20 April 2016
Accepted manuscript online:
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PACS:
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41.20.Jb
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(Electromagnetic wave propagation; radiowave propagation)
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73.20.Mf
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(Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 61372034). |
Corresponding Authors:
Guang-Ming Wang
E-mail: wgming01@sina.com
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Cite this article:
Wen-Long Guo(郭文龙), Guang-Ming Wang(王光明), Hai-Peng Li(李海鹏), Kun Zhang(张昆), Tong Cai(蔡通) Ultra-thin two-dimensional transmissive anisotropic metasurfaces for polarization filter and beam steering application 2016 Chin. Phys. B 25 104101
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