Title :
Analysis of finite phased arrays of circular microstrip patches
Author :
Deshpande, Manohar D. ; Bailey, Marion C.
Author_Institution :
Vigyan Inc., Hampton, VA, USA
fDate :
11/1/1989 12:00:00 AM
Abstract :
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
Keywords :
antenna phased arrays; antenna theory; microstrip antennas; microwave antenna arrays; active element pattern; active reflection coefficient; array elements; circular microstrip patches; coaxial probes; dielectric layer; dyadic Green´s function; element pattern; finite phased arrays; impedances; microwave antenna arrays; reaction integral equation; scan angle; Circuits; Coaxial components; Dielectrics; Green´s function methods; Impedance; Microstrip antenna arrays; Moment methods; Phased arrays; Planar arrays; Probes;
Journal_Title :
Antennas and Propagation, IEEE Transactions on