Finite array analysis using iterative spatial Fourier windowing of the generalized periodic Green´s function

A flexible technique has been developed to analyze small size finite arrays by means of the finite array periodic Green´s function. It attempts to improve the accuracy of the results by iteratively re-defining a better window function. Using a relatively simple structure, these methods have demonstrated that the behavior of the active impedance of each element in a finite array can be approximated with limited success by the model. These methods may be useful for prototype modelling of more complicated microstrip structures in which the full analysis method would require prohibitively large computing resources.