Space-time-coding metasurfaces for high-dimensional communications with OAM-, polarization-, and frequency-division multiplexing.

Abstract

Recent advances in high-dimensional multiplexing have enabled the concurrent operation of multiple independent communication channels through orbital angular momentum, polarization, and frequency division multiplexing, all implemented on a compact space-time-coding metasurface platform. These developments provide a streamlined and high-efficiency approach to optimizing multiplexing performance and enhancing channel capacity in wireless communication systems.