Measurement of the Radiation Pattern of a Horn Antenna in a Vibrating Intrinsic Reverberation Chamber

This paper outlines a novel method for determining the radiation pattern of an antenna within a fully stirred Vibrating Intrinsic Reverberation Chambers (VIRC), which is a reverberation chamber constructed from a metallic tent whose shape changes continuously as a function of time. Even if a VIRC is a challenging environment for measuring radiation patterns due to the presence of multiple indirect paths, the proposed method aims to separate the line-of-sight (LOS) path between the antenna under test and the measuring antenna from all the other indirect paths present in the VIRC. In the case of a perfectly stirred VIRC, the method requires only to average the S
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measurements between two antennas over a different number of sweeps for a given angle. The proposed method is compared to measurements obtained in an anechoic chamber (AC), which is the traditional reference facility for antenna radiation pattern measurement. This technique provides a cost-effective way to obtain accurate radiation pattern measurements while reducing the need for complex measurement setups.