Active Multifunctional Frequency Selective Surfaces: An Insight Into Design, Behavior Analysis, and Applications. - Harienthiran Maheswaran; Gulam Nabi Alsath Mohammed; Geethanjali Govindarajan; Kanagasabai Malathi; Kirubaveni Savarimuthu; Sandeep Kumar Palaniswamy; Sachin Kumar 003; Bhawna Goyal; Mousa I. Hussein (IEEE Access, 2025)