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Analysis of finite phased arrays of circular microstrip patches

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2 Author(s)
M. D. Deshpande ; Vigyan Inc., Hampton, VA, USA ; M. C. Bailey

A method is presented for analyzing a finite planar array of circular microstrip patches fed by coaxial probes. The self- and mutual impedances between array elements are calculated using the method of moments with the dyadic Green's function for a dielectric layer on a ground plane. The patch circuits are determined by using the reaction integral equation. The active input impedance as well as the active element pattern of the array are computed from a knowledge of the resultant patch currents. The calculated results for two-element and eight-element linear arrays are in good agreement with experimental data. The active reflection coefficient and element pattern for the center and edge elements of a two-dimensional array as a function of scan angle are also presented

Published in:

IEEE Transactions on Antennas and Propagation  (Volume:37 ,  Issue: 11 )