A new hybrid method for analysing scattering problems

Abstract

A hybrid method that combines the Finite Difference Time Domain method (FDTD) and the Method of Moments in the Time Domain (MOM-TD) is presented. The use of equivalence theorem enables the calculation of interactions between these numerical methods. Some numerical techniques enhance the efficiency of calculations. The advantages of the hybrid method are a reduced computation time, memory efficiency and a smaller file size when applied to the problems with the sources distant from scatterers. Comparison between the hybrid method and the FDTD method is provided through numerical examples.