Recent Progress in Reconfigurable and Intelligent Metasurfaces: A Comprehensive Review of Tuning Mechanisms, Hardware Designs, and Applications (Adv. Sci. 33/2022)

Reconfigurable and Intelligent Metasurfaces In article number 2203747 the recent progress of intelligent metasurfaces, focusing on tuning mechanisms, hardware designs, and applications, is presented. Yejun He and co-workers discuss the reconfigurable and programmable metasurfaces, classified as space-gradient, time-modulated, and space-time modulated metasurfaces. In addition, the authors provide an overview of the emerging research direction of reconfigurable intelligent surfaces.