Investigtion of field uniformity validation in reveberation chamber using VNA

Field uniformity in a reverberation chamber is experimentally investigated by experiments based on a vector network analyzer. The traditional field uniformity, which is evaluated from the maximum field with samples of stirrer positions, could be extracted from amplitude spectrum of measured transporting function in the experiment. Additionally, density analysis of amplitude spectrum indicates that field uniformity could also be evaluated from field distribution. This distribution analysis method shows advantage in uncertainty, by avoiding effects of accidental samples. And the defect of distribution analysis method is also discussed in the end.