Space-divided FDTD method [for electromagnetic problems]

A new numerical computation scheme that is used in the FDTD method is presented in this paper. This scheme divides the large calculation space that FDTD method needs into some sections and re-uses the computer's limited memory to load every section one by one and iterate in every section one by one. Using this method, a large scale electromagnetic problem can be handled. This method is used in some examples, the calculation data shows that this method is feasible and the results are correct compared with that obtained by normal FDTD method. This method can be used in the analysis and prediction of EMC/EMI problems.