Comparison between Reflection S-Parameter Measurements in a Reverberating Chamber and in Free Space at Lower Frequencies

The aim of the work presented in this paper is to extract a significant signature of a mode stirred reverberating chamber in order to observe the impact of a new permanent installation within the chamber, on the electromagnetic properties of the chamber. This work analyzes information given by the comparison between the reflection S-parameter of an antenna measured in a reverberating chamber and in free space, in the lower frequency region of the reverberating chamber. We will primarily try to extract information about the efficiency of the stirring mode and the functioning limit of the chamber in the lower frequencies.