Figure 5. Measured results of the printed graphene enabled antenna bended on cylinders with different radii, as shown in Fig. 4; Accordingly, curves (a–d) correspond to un-bend, bended with radius of 5.0 cm, 3.5 cm and 2.5 cm, respectively.

(a) Reflection coefficients and realized gains and (b) Radiation patterns at 1.97 GHz.