Parametric Study of Angular and Radial Probe Positioning Errors In a Large Spherical Near-field Automotive Antenna Test System

Author:Daniël Janse van Rensburg

The testing of modern automotive antennas is often accomplished by using spherical near-field test facilities. This paper presents sensitivity analysis data for errors introduced in the probe position of such a test system. The purpose of this study is to establish mechanical design goals for the gantry structure required in the implementation of the probe positioning system. Far-field error levels are calculated to demonstrate the effect of the probe positioning anomalies.

 

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