A New SCN-based Frequency-domain TLM Node and Its Applications with the Diakoptic Method

This paper presents a new hybrid node that is used with the diakoptic method for the frequency-domain transmission line matrix (FD-TLM) modeling. The new node is derived directly from the conventional symmetrical condensed node but without stubs that account for medium permittivity and permeability. Therefore, it has the same numerical properties as those of the frequency-domain symmetrical condensed node (SCN) method but requires less memory. Together with the diakoptic method, it allows a structure to be decomposed into several sub-domains which can be simulated and stored separately. Preliminary numerical examples are presented to demonstrate the efficiency of the proposed node and the diakoptic method.