An efficient finite element solution using a congruent transformation based model order reduction for interconnect simulation

This paper presents an efficient method, which combine finite element method (FEM) and model order reduction (MOR) algorithm for the simulation and modeling of electromagnetic devices and systems over a broadband. In the application of this method, perfectly matched layer (PML) is applied with finite element method to solve unbounded region problem. A Krylov space based model order reduction method is used to reduce the order of model from FEM-PML. With the reduced model, it is available to achieve a fast frequency sweep result efficiently over broadband. By using the proposed method, the time consumption of simulation of interconnects over broadband can be reduced significantly without too much loss of accuracy.