 This paper presents two methods of analysis for a periodic wireless power transfer system, using numerical and circuit models. The numerical model was used to determine the maximum efficiency of the system by solving a three-dimensional FEM. The circuit model was used to calculate the load resistance values where the system has maximum efficiency. The results show that the proposed circuit model can achieve similar accuracy as the numerical model while reducing the complexity of the model and analysis. This allows for the proper selection of the load resistance, without the need for multiple tests, and they're resulting multiple measurements. This article was authored by Yasek Macha Stankovich.