Reconfigurable compatible metasurfaces: tunable microwave orthogonal-synergized reflected phase and tailorable...

Reconfigurable metasurfaces hold great promise for on-demand reshaping of the next generation of intelligent wireless environment in a cost-effective manner. Despite the rapid growth, most of the existing metasurfaces still concentrate on single-spectrum controllable operations, urgently making further efforts towards enhanced compatibility across different spectra when they are used for complicated wireless relay systems. In this study, a reconfigurable compatible metasurface (RCM) that features electrically tunable reflected phase for orthogonal polarizations and customizable metal duty proportion to tailor the optical transmittance is proposed and fabricated by integrating optical transparent substrates with metallic meshes and patterned positive-intrinsic-negative (PIN) diodes. Dual-layer PIN diodes implement dynamic switching of electromagnetic (EM) multi-beam in two-dimensional(2D) space under orthogonal polarizations incidences, which can effectively permit quasi-three-dimensional(3D) dynamic beam steering when subjected to other polarization states. By collaborating with this metasurface and a sensor system, information resources can be meticulously distributed along different directions, meeting the needs of multiple-user communication scenarios. This study provides a feasible framework for compatible metasurfaces simultaneously with actively controllable microwave phase and passively adjustable optical transparency, opening up an avenue for its applications in fields such as intelligent EM windows, wireless collaborative transmission, and multi-spectrum EM shedding.