Due to the possibility of blockage during communication, the communication quality may be poor. Therefore, Reconfigurable Intelligent Surface (RIS) technology can effectively solve this problem. In ...

(a) Unit optimization process with a hybrid continuous-discrete PSO algorithm. The particulars of the yellow and green boxes in the optimization are elaborated in (b) and (c), respectively. (b) The ...

Two-dimensional (2D) space-encoded metamaterials enable the progressive development of a multitude of functionalities for controlling electromagnetic (EM) waves. Recently, time-modulated phase-coded ...

Recently, a new technology named reconfigurable intelligent surface (RIS) is emerging as a potential candidate for 6G network. An RIS is usually designed as a reflective array equipped with a large ...