Dispersion analysis of a TLM mesh using a new scattering matrix formulation

An equivalent scattering matrix for the TLM symmetrical condensed node is derived by rearranging the order of node ports. The new matrix is given in a partitioned form with zero blocks on the main diagonal. It enables a transformation of the general dispersion relation from a 12th- to a 6th-order eigenvalue equation, thus significantly simplifying the problem of finding a closed algebraic form of the dispersion relation for the symmetrical condensed node.<
>