Back-gate bias of a graphene antenna via a smart background metallization

In this paper we present a new way of biasing the graphene radiator of a coplanar patch antenna by exploiting an ad-hoc designed backside metallization. Due to the intrinsic physical properties of graphene, this would represent the most effective way to tune antenna matching and radiation characteristics by tuning graphene surface impedance. Simulation results are provided, showing that the proposed background metal plane does not affect antenna performance, thus guaranteeing an effective back-gate biasing technique.