Time-domain hybrid methods to solve complex electromagnetic problems

This communication describes the FDTD-FETD-MoMTD and the ADI-FDTD/MoMTD time-domain hybrid techniques. They are applied to analyze complex electromagnetic problems such as those involving thin-wire antennas radiating in the presence of arbitrary objects. The methods combines the ability of the FDTD to deal with arbitrary material properties, the versatility of the FETD to accurately model curved geometries, that of the MoMTD to analyze thin-wire structures, or that of the ADI-FDTD formulation of not imposing conditions on the duration of the temporal interval. Attention is paid to the algorithms that connects the different techniques., Representative numerical results are given and discussed.