5G communication network has three distinct characteristics, although not limited to; enhanced network coverage, low latency and massive device connectivity. 5G mobile system has broad spectrum to support high data rates. Such device must deploy corresponding radiating structures to meet the changing technological advancement. In this paper therefore, a microstrip patch antenna operating at 3.6GHz frequency is designed and simulated for 5G application. The choice of frequency of operation is influenced by the broad prospects for 5G. The substrate is the flame resistant four (FR4) with a dielectric constant of 4.6 and a loss tangent of 0.023. The results include; plots of the voltage standing wave ratio, radiation pattern, return loss and radiation efficiency. The result further showed that, the parameters influencing the radiation characteristics of the patch antenna are the relative permittivity of the dielectric material, the position of the slot on the patch, the ground plane, substrate type as well as the dimensions of the feed and patch. The microstrip antenna thus can be effectively deployed for 5G application.