Jl. Herring et C. Christopoulos, SOLVING ELECTROMAGNETIC-FIELD PROBLEMS USING A MULTIPLE GRID TRANSMISSION-LINE MODELING METHOD, IEEE transactions on antennas and propagation, 42(12), 1994, pp. 1654-1658
A multiple grid technique for solving electromagnetic field problems u
sing the transmission-line modeling (TLM) method is described. The ide
al conversion conditions across the interface between fine and coarse
mesh regions are described and the implications of making the approxim
ations needed for a practical implementation are discussed. Simulation
s are presented showing the accuracy of the method and its benefits in
terms of reduced storage and run-time.