Reducing the Lowest Usable Frequency of a Reverberation Chamber: A Review

Reverberation chambers (RCs) are used to measure sensitive emissions and carry immunity tests at a lower cost compared to anechoic chambers. To use RC at low frequencies, the size of the RC increases, which becomes expensive and time-consuming to construct. This paper presents a review of methods to reduce the lowest operating frequency of the reverberation chamber so that RC can be used to test the devices below the lowest usable frequency without changing their dimensions.