Precision phase measurements of automotive antennas for localization in anechoic chambers

In some automotive antenna measurement ranges an exact placement of the test object is required but difficult. This paper presents a reliable method to determine the geometric position of an arbitrary antenna by application of a phase center localization technique to an accuracy of fractions of a wavelength. The performance of this method is examined with several test setups. Finally, the method is applied to determine the position of an automotive application antenna on a car body.