Filtering Antenna Array based to Graphene-Assembled Films for 5G Applications

$A$
filtering antenna array based on graphene assembled film (GAF) operating in 3.5 GHz is presented in this paper. The GAF has a conductivity of 10
⁶
S/m and a thickness of 25 μm with excellent ductility and flexibility. Split-Ring Resonator (SRR) is loaded on side of the feeder to provide filtering characteristics for the upper band of the GAF antenna. Meanwhile, a H-shaped slot is etched the ground below the feeder to suppress the lower band. The gain of the proposed 1 × 2 GAF antenna array can arrive at 5.36 dBi at the working frequency. In addition, the - 10dB impedance bandwidth of GAF antenna array covers the range of 3.45 GHz-3.6 GHz with the good sideband suppression of 20dB. All the results show that GAF filtering antenna array has the important application potential for 5G mobile communications.