Near-Field Metallic Metasurfaces for Enhancing Antenna Capabilities

This paper reviews and highlights the potential of near-field metallic metasurfaces (MMs) in developing high-performance antenna systems. The proposed MMs are realized based on near-field phase translation and successfully employed to enhance the gain and steer the beam in a large 3D conical space. The dielectric-free, low-cost, and lightweight attributes of MMs can be leveraged for usage in strict operating conditions.