Metasurfaces aided signal processing for smart electromagnetic environments

In this contribution, we review our recent results on the concept ofmetasurface aided signal processing. The ability to control the properties of the metasurfaces and reconfigure their operation in real time allows enabling analog signal manipulation at the speed of light, avoiding frequency conversion, analog/digital conversion, and the execution of time-consuming digital signal processing numerical routines. The implementation of the metasurface aided signal processing concept in future smart electromagnetic environments will allow seamless ultra-high data rate communications boosted by a dramatic reduction of latency and jitter. Several examples of application of the metasurface aided signal processing concept are given to demonstrate its effectiveness in conceiving and implementing future wireless systems integrating communication and sensing capabilities.