Analysis of Uncertainty of Maximum of Electric Field in Reverberation Chamber

Electromagnetic compatibility test in reverberation chamber has unique superiority. However, the problem of uncertainty on reverberation chamber testing is focused all the time. In some immunity test, the maximum of electric field is concerned. The standard deviation relative to mean value, the width of the confidence interval and the ratio of maximum and minimum value are used to describe the uncertainty of maximum of electric field. The effects of the number of independent samples on the uncertainty are analyzed. The results show that the uncertainty decreases with the increase of the number of independent samples, but the velocity is slow when the number is big. The ratio of maximum and minimum value can also be used to describe the stirrer efficiency.