A finite element boundary integral formulation using cavity Green's function and spectral domain factorization for simulation of reverberation chambers

摘要

A finite element boundary integral approach with the Green's function of the rectangular cavity is introduced and applied to the simulation of reverberation chambers. In contrast to all other approaches that use the cavity Green's function, the computationally expensive part of the system matrix is factorized in the spectral domain yielding a significant acceleration of the algorithm. Numerical results demonstrating the performance and the accuracy of the approach are shown.