There is a demand for more effective phased array calibration both in initial and in situ setups, including but not limited to airborne and spaceborne radars. Mutual coupling is a method of calibration which involves gathering amplitude and phase components. However, obtaining mutual coupling information from a phased array is complicated due to array geometry, patch modeling, nulls in coupling, edge effects, and changes in time and temperature. As such, simulating these phased arrays becomes difficult with larger array sizes in electromagnetic solvers as the demand for computational memory increases. This thesis introduces an array model meant to quickly provide mutual coupling data which can in turn be used to help in the implementation of future mutual coupling calibration algorithms. This accuracy of this model is verified using full wave simulations. Additionally, the parameters of this model are adjusted to the parameters of a real life patch array and observed for similar mutual coupling behavior.