Effects of Stirrer on the Field Uniformity at Low Frequency in a Reverberation Chamber and its Simulation

Stirrer is the key component of reverberation chamber and the shape, dimension and number of the stirrers are important parameters that affect the field uniformity property. In this paper, based on computer simulation technology, three kind of stirrers with different structure and dimension are designed, and the effects of stirrer on the field uniformity at low frequency in a reverberation chamber are studied in detail. The results show that field uniformity of the reverberation chamber could be improved remarkably through proper design of structure and dimension of the stirrer as well as increase the stirrer number. Besides, the effect of different stirrer positions design on the field uniformity is also investigated.