A study of phased arrays of rectangular stacked microstrip patch antennas is presented. Two theoretical methods are discussed, i. e., a finite array theory and an infinite array theory. Both theories give almost the same results for a 7 × 7 array, except for edge array elements and for large scan angles. Measured coupling coefficients of a 7 × 7 array are compared with calculations and agree fairly well.
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Arts et al. (1993) studied this question.
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