Estimation of Effective Working Volume Within Ideal Reverberation Chamber Using Plane Wave Integration Method

In a reverberation chamber, a random electromagnetic field is generated by mechanically rotating a metal stirrer. Although the spatial electric field distribution in an ideal reverberation chamber can be represented as a probability density function using a statistical approach, this method does not account for the size of the chamber. The electric field distribution in a well-stirred reverberation chamber can be approximated using the plane wave integration method, which is based on the vector sum of plane waves from multiple directions. In this study, the electric field distribution within the working volume of the reverberation chamber was calculated using the plane wave integration method. Then, by comparing the calculation results with the theoretical values obtained through the statistical method, the size of the working volume at which the electric field distribution could be considered ideal was estimated.