The implement of the hybrid meshes in US-FETD by using Domain decomposition method

In this paper, an efficient dual field domain decomposition method is applied to hybrid meshes in the explicit unconditionally stable finite element time domain (US-FETD) to exploit the advantages of the rectangle and triangle meshes. The proposed method implements the hybrid meshes in US-FETD with equivalent electromagnetic current, resulting in a high accuracy of multi-scale electromagnetic modeling. Since the fine structures are inside the subdomain and the US-FETD is used in each subdomain, the proposed method can allow a large time step in whole computational domain. The numerical results can verify the proposed method.