A P-shaped wearable antenna is proposed for the application of ISM (Industrial Scientific Medical) band at frequency 2.45 GHz. This proposed antenna is studied using different numerical techniques. Those techniques are Method of Moment (MoM) and Finite Element Method (FEM). This proposed structure is a high directive gain, low-cost, low weight base station antenna. The characteristic analysis such as return loss (RL), VSWR and radiation pattern of this antenna has been investigated numerically. Numerical study has been carried out by using Ansoft HFSS V13 simulating software.