Graphene-silicon diode loaded patch antenna

In this paper, we proposed a graphene-silicon diode loaded patch antenna, which is fabricated on silicon wafer. The structure of patch antenna is perfectly compatible with the diode process. Its equivalent circuit and frequency-tunable characteristics are analyzed with an equivalent circuit model. The result is verified by 3-D full-wave simulation. This patch antenna, which is directly printed on silicon wafer, finds a potential application of graphene in GHz frequency band and can be easily integrated with other integrated circuits.