A Wideband and Ultra-Thin Metamaterial Absorber Based on Resistive FSS

A wideband, ultra-thin, wide-angle and polarization-insensitive metamaterial absorber with a single-layer resistive frequency selective surface (FSS) is proposed. The simulated results show that the absorption rate of greater than 90% in range 24.1–42.6 GHz, relative bandwidth up to 55.47%. thickness structure 1.2 mm, which 0.088 ? 0.156 for lowest highest frequencies, respectively. power loss density analyzed explore mechanism film layer important wideband absorption. Meanwhile, strong oblique incidence wide angle characteristics polarization insensitivity are achieved proposed design.