2018 Volume 10 Issue 1 Pages 25-33
Along with the diffusion of electromagnetic field analysis using computers, a large-space including complex shapes also becomes an analysis target, and development of a high-accuracy analysis is required for these problems. Therefore, in this study, Berenger's PML, which is currently the most effective absorption boundary condition, is applied to the parallel finite element method based on the domain decomposition method and it is effective as an analysis method of the microwave band. As a basic study, we developed an analysis solver using parallel finite element method based on iterative domain decomposition method. As the accuracy verification of the analysis solver, we analyzed TEAM Workshop Problem 29 which is a benchmark problem, and confirmed that a highly accuracy solution is calculated. Next, a model with PML added to the dipole antenna is used as an analysis object, and the absorbing performance of PML is evaluated by using reflection coefficient based on S parameter. Moreover, by comparing the directivity of the dipole antenna with the theoretical solution, accuracy evaluation in the antenna analysis. As a result, we confirmed the effectiveness of this method for microwave analysis, so we report here.
