A method is described for calculating array mutual resistance from far-field radiation patterns. The relationship of mutual resistance to element gain and array gain is described and exploited. This calculation is often less difficult than near-field mutual impedance computations. Since only far-field performance is considered, results may be applied to broad classes of arrays without detailed analysis of specific element types. The mutual resistance value thus obtained is useful in determining the minimum achievable mutual coupling for a given array geometry. The general procedure is described in detail. It is illustrated for a Hertzian Dipole array, and results are shown to be mathematically equivalent to those obtained from traditional near-field analysis.
This article is from 'Proceedings of the Antenna Applications Symposium Held on 25-27 September 1991. Volume 1,' AD-A253 681, p132-154.