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Flexible graphene based films for microstrip array antennas

Graphene based antennas have attracted wide attention due to their low cost, high stability and well flexibility. However, the manufacturing process uses graphene based films to fabricate array antennas is few reports. In this paper, a unique process for fabricating microstrip 2×2 array antennas with flexible graphene based films is reported. The microstrip array antennas with the return loss of −40.28dB and the high gain of 6.78dB at 2.46GHz, which are as high as the identical copper antennas. Moreover, the graphene antennas have similar radiation patterns to the copper antennas, indicating that the graphene array antennas can be an ideal candidate for copper array antennas.