In this paper, the potential of graphene in the design of reconfigurable nanoantennas is investigated based on the
characteristic modes analysis approach. The characteristic modes (CMs) of a graphene plate are calculated by the
electrical field integral equation technique. The effects of the dimensions and chemical potential of the graphene
plate on the CMs are investigated. For achieving CMs, a novel formulation is introduced. The results of this analysis
can be useful in designing efficient nanoantennas for wireless communications in the terahertz band.