FDTD Plane Wave Simulation without TF/SF

[RezaJ.A.Z]

Hi all,

I've been simulating a TMz wave in free space. However, while updating Ez, Hx, and Hy I see no signs of a plane wave! The wave is sort of problematic. I mean I don't see the straigh wavefronts, but just some curved wavefronts. I wonder what TF/SF does which outputs a plane wave from the same simulation?

Bests,

 

[rrumpf]

Your problem could be many things. The fact that you see nothing suggests that you simply adding zeros to your grid. Check out Lectures 7, 8, and 15 here:

**broken link removed**

Hope this helps!

 

[RezaJ.A.Z]

Your problem could be many things. The fact that you see nothing suggests that you simply adding zeros to your grid. Check out Lectures 7, 8, and 15 here:

**broken link removed**

Hope this helps!

Actually I did see waves propagating, but the point is the waves weren't in plane shape!
I mean what do you expect from the waves propagating away from the source in free space? Obviously, to change to plane wavefronts. By the way It's better to add that I used an additive E-field on a single row in the solution domain as the source. In other words a sine function has been assigned to all of the nodes located on this row.

Thanks for the website rrumpf.