Microstrip monopole antenna with enhanced bandwidth for LTE applications

A dual frequency broadband planar monopole antenna with parasitic stub is proposed in this paper. It exhibits good 10 dB bandwidth for return loss from 2.22 to 3.32 GHz and from 3.32 to 3.83 GHz covering long term evolution (LTE) bands 7, 22, 38, 40, 41, and 42. The antenna occupies an overall dimension of 35 mm × 42 mm. Simulation results show good antenna performance in both frequency bands such as 2.12 dBi gain, 80.86 percentage efficiency at 2.6 GHz, and 2.64 dBi gain, 76 percentage efficiency at 3.5 GHz.