Single-Varactor Dual-Polarized Reconfigurable Intelligent Surface with Shared-Bias Analog Tuning
Reconfigurable intelligent surfaces (RISs) can modify a propagation environment using electronically controlled reflecting cells. This paper presents a 5.4-GHz dual-polarized RIS, characterized over 5.0–5.5 GHz, in which one shared-bias varactor per cell tunes two orthogonally oriented resonant layers. The simulated co...