Measuring wide angle antenna performance using small planar scanners

A technique for the prediction far field antenna patterns from data obtained from non-coplanar partial scans is presented. The applicability of this technique in the measurement of antenna assemblies in planar facilities that would normally be considered too small to acquire suitable near field data, sufficiently free from truncation, is illustrated. The accuracy of the transformation technique is assessed via the application of a novel statistical measure of association. The derivation of this metric of association is accomplished through an unconventional analysis of the ordinal aspects of the predicted far field interval data. The limitations of the technique are explored and the directions to be followed in subsequent research are discussed.