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.
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