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Found 5 results

  1. Hi all, I wanted to understand how the far field from a near field response from another simulation works. I have a circular waveguide junction problem where I find the aperture field distribution and make it the input of the next simulation as a source to find the far field from it. I have put a PEC surface around the near field source (Not above or below) so that the near field acts as a slot (magnetic virtual current source). I expected to see radiation towards both half of the space but I see on one side like as if there is a PEC surface below that too. However, for some other configuration I do see some radiation towards the other half space. I wanted to understand what exactly happens. I am attaching both models. circular_2wg_10modes_FF_from_NF.cfx circular_5wg_10modes_FF_from_NF.cfx
  2. Hi all, I am getting an error which says "The following message from the server process (MYID= 15): ERROR 36100: Too many modes included at a circular waveguide port." I wanted to know why does that happen. Thanks!
  3. When I run my model with the default solver (I guess it is MOM), I get an error which says "ERROR 33238: Not enough memory available on the hard disk for an out-of-core file" though I already have 8 GB of RAM and more than 200 GB of free HDD space. However, when I switch to FDTD solver, it doesn't show up the error, but it takes a really really long time. I have attached the model to this post. Please help me what to do with this error as I haven't found any good solutions yet. 08262019_Feko_two_blades.fek
  4. Hello Everyone, I want to receive the RCS data of a propeller for both co and cross polarization. When I do a calculate field in the same direction on the far field as plane wave incidence, it gives me monostatic RCS. Therefore, I assume it depends on the plane wave incidence. However, in the plane wave incidence I can put one polarization for transmit and the result that I get is the co polarization (Either HH and VV). How can I receive monostatic HV and VH?
  5. I want to run my simulation with explicitly UTD or explicitly PO. However, I don't understand the solver settings in 2018. In default settings, I don't have the option to only select UTD as the PO/MoM has to be selected on top.
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