Manipulations of Dual Beams with Dual Polarizations by Full‐Tensor Metasurfaces. Issue 10 (30th June 2016)

• Record Type: Journal Article
• Authors: Wan, Xiang; Chen, Tian Yi; Zhang, Qian; Yin, Jia Yuan; Tao, Zui; Zhang, Lei; Chen, Xiao Qing; Li, Yun Bo; Cui, Tie Jun
• Is Part Of: Advanced optical materials. Volume 4:Issue 10(2016:Oct.)
• Page Start: 1567
• Page End: 1572
• Publication Date: 2016-06-30
• Subjects: dual beams -- dual polarizations -- leaky waves -- tensor metasurfaces; Optical materials -- Periodicals; Photonics -- Periodicals; 620.11295
• DOI: 10.1002/adom.201600111
• Languages: English
• ISSNs: 2195-1071

Abstract

Abstract : Recently, scalar (or isotropic) and vector (or uniaxially anisotropic) metasurfaces have been investigated intensively to control the propagations and/or polarizations of reflected, transmitted, and radiated electromagnetic waves. Here, an inhomogeneous tensor (or fully anisotropic) metasurface is proposed to manipulate two independent beams with independent polarizations. Direct holographic method is employed to modulate tensor surface impedance of a metasurface, which is designed and realized using anisotropic metamaterial particles. Both simulations and measurements prove the capabilities of the proposed tensor metasurface in controlling the directions of dual beams and their polarizations independently. The presented structure has very low profile, indicating potential applications in radar detections, satellite, and wireless communications. Abstract : An inhomogeneous tensor metasurface is proposed to manipulate the radiations of two independent beams with different polarizations. The direct holographic method is used to modulate the surface impedance matrix on the tensor metasurface. The aperture of the metasurface consists of two parts, and each part is independently modulated to generate a desired beam with specific direction and polarization state.