Verification of fields applied to an EUT in a reverberation chamber using statistical theory

Among the significant characteristics of the electromagnetic environment in a reverberation chamber are isotropy and homogeneity. These characteristics permit robust immunity testing without moving the equipment-under-test or the field generating antenna. However, the statistical nature of the electromagnetic environment gives rise to questions about the ability to predict the test fields at the equipment-under-test. The first issue is the ability to predict and/or establish the maximum test field. The second issue is the ability to predict the field at the equipment-undertest based on a measurement at the monitor antenna/probe location which is in the working volume but remote from the equipment-under-test. This paper extends the comparison of experimental data and the maximum to mean ratio predicted from statistical theory. The paper also compares measured data to theoretical predictions for the maximum field at arbitrary locations within a reverberation chamber based on a measurement of the mean field at the monitor location.