Integrated metasurfaces with diversified functionalities have demonstrated promising prospects for comprehen-sive implementations in compact 5G/6G communication systems by flexibly manipulating electromagnetic(EM)waves.Increasingly emerged multifunctional metasurfaces have successfully revealed integrated wavefront manip-ulations via phase gradient arrays,coding apertures,independent polarization control,asymmetric transmission/reflection,etc.However,multifunctional metasurfaces with more degrees of freedom in terms of multi-band/broadband operation frequencies,full-space coverage,and computable array factors are still in dire demand.As a step forward in extending manipulation dimensions,we propose and corroborate a dual-band multifunc-tional coding metasurface for anomalous reflection,radar cross-section reduction,and vortex beam generation through full-wave analysis and experiment.Our tri-layer meta-device comprises a shared coding aperture of split-ring and cross-shaped resonators sandwiched between two layers of orthogonal wire gratings.With an approach of independent control of a reflection-transmission wavefront under orthogonal polarization states and Fabry-Perot-like constructive interference,the low-cross-talk shared coding aperture features a smooth phase shift and high efficiency for 3-bit coding in the K-band and 1-bit coding in the Ka-band.Both numerical and measured results verify that the proposed coding metasurface can effectively realize full-space EM control and improve the capacity of the information channel,which could be developed for potential applications in multifunctional devices and integrated systems.

YIBO PAN;FENG LAN;YAXIN ZHANG;HONGXIN ZENG;LUYANG WANG;TIANYANG SONG;GUIJU HE;ZIQIANG YANG

School of Electronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 610054,China;Yangtze Delta Region Institute(Huzhou),University of Electronic Science and Technology of China,Huzhou 313001,China

光子学研究（英文）

[1]YIBO PAN;FENG LAN;YAXIN ZHANG;HONGXIN ZENG;LUYANG WANG;TIANYANG SONG;GUIJU HE;ZIQIANG YANG-.Dual-band multifunctional coding metasurface with a mingled anisotropic aperture for polarized manipulation in full space)[J].光子学研究（英文）,2022(02):416-425

mingled

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