The Impact Of Alignment Errors On Cylindrical Near-Field Antenna Measurements
Authors: Daniël Janse van Rensburg, Allen Newell, Mart Hagenbeek
Publication: AMTA 2000
Copyright Owner: NSI-MI Technologies
This paper addresses the sensitivity of the cylindrical near-field technique to some of the critical alignment parameters. Measured data is presented to demonstrate the effect of errors in the radial distance parameter and probe alignment errors. Far-field measurements taken on a planar near-field range are used as reference. The results presented here form the first qualitative data demonstrating the impact of alignment errors on a cylindrical near-field measurement. A preliminary conclusion is that the radial distance accuracy requirement may not be as crucial as was stated in the past. This paper also shows how the NSI data acquisition system allows one to conduct such parametric studies in an automated way.