In order for the TLM algorithm to produce useful work, it must be incorporated into a program. A simple 3D symmetrical condensed node TLM program, written in Fortran (77) is presented here. The features have deliberately been kept to a minimum for clarity. Free-space regions can be modelled with cubic nodes and boundaries of arbitrary reflection coefficient can be inserted. Information on more advanced features and on other refinements can be found in the literature.
J. L. Herring, 10 December 1995.