Electromagnetic Compatibility Analysis Using Embedded Domain Decomposition Method

A finite element based embedded domain decomposition method (DDM) is introduced herein for electromagnetic compatibility (EMC) analysis. In the method, we decompose a computational domain into a background subdomain and several embedded subdomains. Information exchange between the subdomains are addressed in their shared regions, including four ingredients: field continuity, material difference, perfect electrical conductor (PEC), and port. The proposed method allows for completely nonconformal sub domains, thus offering great flexibility for the modeling and design in EMC and signal integrity applications.