In this paper, a metasurface design is proposed, which can be reconfigured to operate in two modes. In Mode 1, it functions as a polarization-selective transmitter/reflector in the 3.19 \(-\) 3.7 GHz range, transmitting x-polarized waves and reflecting y-polarized waves when the RF switch is OFF, while reflecting both when ON. In Mode 2, it functions as a polarization-selective absorber/reflector by integrating an absorber to the structure. It allows x-polarized waves to be either absorbed or reflected based on the switch state, while y-polarized waves are always reflected. The four-layer metallic structure integrates PIN diodes with a simplified embedded bias network, minimizing complexity and achieving 99.7% absorptivity. Theoretical validation is provided through surface current distribution and an equivalent circuit model, with experimental measurements confirming performance. It features a slimmer design, improved angular stability, and a simplified DC biasing network, demonstrating a multifunctional solution for advanced electromagnetic applications.
