Circuit models for 3D structures with incident fields

Results for a two-conductor transmission line model are compared with a new partial element equivalent model (PEEC) which has been formulated to solve the scattering problem. The PEEC model corresponds to a full-wave method-of-moments solution. Advantages of the PEEC model are numerous since it can be coupled with other circuit simulation tools. For the two-wire problem, the PEEC solution includes both the common and the differential mode currents. The transmission line model provides only the differential mode current. The new PEEC models can be solved with a conventional circuit solver like ASTAP or SPICE provided that either the retardation is very small or the solver can handle retarded sources.<<ETX>>