Evaluation of e-field uniformity for radiated immunity testing in a reverberation chamber

In using a reverberation chamber for radiated immunity testing, it is important to determine the number of discrete steps through which the stirrer rotates and the number of probe locations for a given test volume in the chamber. This is because they affect the uniformity and calibration of the field in the test volume. The authors experimentally evaluated the effect of the numbers of stirrers and their steps on the field uniformity, and the effect of the number of probe locations on the field calibration.