A fast MGAWE method based on MORe

Microwave equipment often needs to get some electromagnetic parameters so that better designs and simulations. At present, transmission parameters of microwave tube can be obtained by fast frequency sweep technologies. Although the traditional multipoint Galerkin asymptotic waveform evaluation (MGAWE) is very popular, it exists some insufficient on the large frequency band and derivation. To remedy the above problems, this paper proposed a fast MGAWE method based on Model Order Reduction (MORe) technology and vector finite element method (FEM). For the global matrix function of FEM, we apply Chebyshev function approximation instead of Taylor expansion, which can avoid derivation. Then we define two error determinations so that can adaptively divide the whole frequency band. To verify the reliability and accuracy of the proposed method, numerical examples are simulated. The results show that this proposed method is in good agreement with HFSS software, which illustrate that the proposed method is effective and feasible.