Hi all,
Please, I need some help about setting a Gaussian pulse as source of a 2D FDTD grid (At the middle of the grid). I´m using the Yee model to define the discretization and the Taflove's equations for analysing of wave propagation - TMz mode . My problem is: Even considering a lossless medium, the wave starts with attenuation/distortion of its shape, since the begining of propagation.
Reading some comments on the web, I suppose that this problems surges because of the source definition, but this issue is still a little confuse to me. I believe that some adjusts of the electric or magnetic field values near of the source point are needed... but I don´t know how. I appreciate if someone can give any help about that. Thanks in advance for your attention.