Using embedded element patterns for the analysis of small arrays

The embedded element pattern of an infinite array is one approach used to model finite size arrays greater than 10 × 10. For smaller array sizes however, using a single embedded element pattern may not suffice since the coupling results in large variations in the currents across elements. In this paper we try to determine if using all nine embedded element patterns of a 3 × 3 rectangular array to form the array radiation pattern compares favorably with the results from full-wave analysis with Antenna Toolbox. The results indicate that such an approximation is indeed valid.