Accelerated analysis of resonators by a combined domain decomposition - model order reduction approach

The paper presents an approach to accelerate the analysis of resonators by means of decomposition of computational domain into smaller subspaces combined with the Model Order Reduction. Maxwell´s equations are discretized in each subspace separately and the number of variables in each subdomain is reduced using a Model Order Reduction algorithm. Reduced equations are then combined to form a new global operator of small size, which can be solved much faster than original problem. The algorithm was tested using numerical examples showing an excellent performance in computation times.