A hybrid method combining the TD-MoM with the TD-UTD to calculate the transient radiation of thin dipoles in presence of a perfectly conducting screen

摘要

A time domain Method of Moments algorithm (TD-MoM) is combinedwith the time domain version of the Uniform Theory of Diffraction(TD-UTD). By use of the TD-MoM the fields radiated from thin wirestructures positioned in free space are determined. The TD-UTD isapplied to calculate the fields scattered by a perfectlyconducting screen. Both techniques are hybridized by addingpossible reflected and diffracted fields in the TD-MoM algorithmand by using the TD-MoM solution to calculate the fields whichimpinge on to the screen. To show the accuracy of the developedhybrid method, numerical results are compared to results obtainedby established frequency domain numerical codes.