Application of the partial element equivalent circuit (PEEC) method to realistic printed circuit board problem

In this paper we give an example of the analysis of a printed circuit board problem which is quite complicated. The board is populated with three wires where two of them extend outside of the board to represent off board coupling. This problem is solved using the partial element equivalent circuit (PEEC) method which is a circuit based mixed potential integral equation (MPIE) solution technique. This technique is capable of solving heterogeneous circuits and fields problems in both the time and the frequency domains. We show that the time domain can be used to isolate some of the sources of radiation. Also, the example problem shows surprising results with respect to the coupling of signals on the printed circuit board.