Numerical modeling of electromgantic interference (EMI) and radiation problems for large multiscale structures

The large multiscale problems are commonly faced in real-world applications such as analysis of electromagnetic interference for a printed circuit board installed on a large platform with connected cables and wires. Unfortunately, modeling the multiscale structures is the bottleneck of electromagnetic numerical solvers. This stems from the fact that to capture objects with different scales, disparate and nonuniform meshing is unavoidable. This disparate meshing leads into different physics coexistence and consequently results in slow convergence of iterative solvers. To remedy this problem, in here, we suggest using equivalence principle algorithm which is an efficient domain decomposition method to model electromagnetic interference/radiation in the large multiscale problems.