Readily made comparison among the three near-field measurement geometries using a composite near-field range

The paper demonstrates how our current technology now very readily permits the realization of a standard of accuracy and utility in antenna metrology that was formerly available only in research laboratories. This is accomplished with standardly available positioning equipment and standardly available software. Accurate alignment of the range is enabled by a tracking laser interferometer. This composite near-field scanning antenna range has afforded us the opportunity readily to compare far-field results from the classic planar, cylindrical and spherical coordinate systems. Comparison data are presented.