Separating local excitation and transmission of spin waves

[Ana]

Hi all, 

I am trying to study the spin wave propagation using Mumax. I have a rectangular region defining the antenna, where I excite an AC field with a sinc function.

In the post-processing stage, I would like to separate the local excitation effects in order to better analyze the propagation characteristics of the spin waves. Is there a method to achieve this?

If we talk experimentally, similar to how we extract reflection (S11) and transmission (S21) parameters using a VNA is there a way to separate these components in simulation? 

Thank you in advance, 

Ana

[Антон Луценко]

Hi Ana,

One of the methods is to consider the spin waves far enough from the excitation, another one is to utilize Fourier transform in time domain and then in space domain to locate periodic propagating processes. Can you give an example of your simulation script and the problems you observe in your postprocessing?