THz Nano-array antenna based on a monolayer reflector graphene surface

Nano antennas recently became popular due to their ability to localize incident electromagnetic fields in sub-wavelength volumes. In this paper, a beam antenna is proposed for THz application, which is based on a switchable high-impedance surface (HIS) using a single-layer graphene. The use of graphene as reflection surface to enhancement the reflection power of the Nano antennas' system due to its unique electronic and optical properties which lead to a complex surface conductivity at THz frequencies. We report the configuration of a graphene patch array antenna based on grapheme surface deposited by Sio2/Si substrate.