Nonorthogonal PEEC formulation for time and frequency domain modeling

Electromagnetic solvers based on the partial element equivalent circuit (PEEC) approach have proven to be well suited for the solution of combined circuit and EM problems. Most of these tools have been based on rectangular or Manhattan geometries. In this paper we extend the PEEC formulation to the case of nonorthogonal geometries since many practical EMC problems require a more general formulation. The approach in this paper adds geometrical flexibility to PEEC while maintaining the full wave and full spectrum properties.