-
GPU and FEKO
Hello, I do not understand well to what extent FEKO supports the GPU with MoM (SEP). I can see on the official website it is supported, but trying to run FEKO with GPU warn me that parallel computation is not supported with GPU. So I've set the number of process to one, but now it is awfully slow. I see in the log that GPU…
-
license actevtion
I am using the student version of Altair FEKO. I previously activated my license on my old laptop. I recently switched to a new laptop, and when I try to activate the software using the same license key, I receive a message saying that the key has already been used. Unfortunately, I no longer have access to my old laptop,…
-
Compute current through a cross section of my metallic structure
Hello, I am trying to obtain the total current that goes through a plane in my structure, as shown below : I've found the .out and .os files where currents are saved, but I have them sorted by label (1, 2, 3, 4, 5, …), and not by geometry, even if I see that the coordinates are written. 1. What is the "good" method to…
-
Altair Student Edition license access
Hello, I have a problem with my Altair FEKO Student Edition license. Unfortunately, my previous PC has broken and I no longer have access to it. Because of this, I was not able to deactivate the license before the system became unusable. Now I cannot activate the license on my new machine. Could you please help me reset or…
-
SimLab - Cosite Interference Solution Not Working / Interface Not Matching Tutorial?
I'm using the student version of Altair SimLab and I'm trying to create a co-site interference simulation. So far I've followed along with the official Antenna Placement and Cosite Interference tutorials: Antenna Placement Co-site Interference The problem I have is that I'm stuck on creating a Cosite Interference solution.…
-
How can I perform a specific type of integration in POSTFEKO
Hello, My problem statement is that I have to input an f(t) at one end of the waveguide and obtain an integrated poynting power density that looks like where E(w,z) = F(w)* J(z)*g(|r-r'|); and g(|r-r'|) is the green's function, J(z) is the aperture current and F(w) is the frequency spectrum of f(t). Can this be possible in…
-
How to check active reflection coefficient for all ports individually for the array antenna?
Hi, I have a four-port array antenna, where I used the active port excitation method using the "Sparameter tab", now my confusion is what are the actual active reflection coefficients in POSTFEKO? Does it refer to voltage source 1,2,3,4? Or, the active reflection coefficient results should be found under the S parameter…
-
Issue generating .mct (Class Definitions) after GeoTIFF conversion in WallMan - Altair Feko 2026
I am seeking assistance regarding a bottleneck in my WinProp workflow. When setting up a new project in ProMan and selecting Rural and Suburban Scenarios (Pixel databases), the interface requires three mandatory files: Topography, Clutter (Pixel database), and Class Definitions (.mct). While I can successfully convert the…
-
FEKO v2026: Issue with Assigning Properties to an Imported Structure
I have imported a 3D structure from GMSH to FEKO to find its RCS(imported mesh, not geometry). In FEKO, only the surface of the structure is meshed. as a result, there is no 'region' option in construction tree for me to assign a permittivity to the whole structure. Instead, I chose the imported mesh from the tree, in the…
-
Using angular variables in postfeko
Is it possible to use angular variables Theta and Phi in postfeko and plot, as an exhample, sin(Theta) or cos(Theta)?
-
Error activiating License: This license was already activated using different HostIDs
actually fixed, never mind
-
February & March 2026 Community Event Lineup is Here!
Get ready to dive into an exciting lineup of events designed to help you get the most out of your Altair tools, connect with fellow users, and expand your knowledge! Whether you're looking to master new features, explore advanced applications, or simply connect with other enthusiasts, our upcoming events have something for…
-
Request for Manual Student License Reset - Error Code 9 (HostID Mismatch)
"Hello Altair Support Team, I am a student at PSG iTech using Feko v2025.1. I am unable to run the software due to a persistent license error. The Problem:My CADFEKO shows Error Code 9 (Feature not found) and Error Code 6 (Unable to read file). When I previously tried to reactivate using my key, I received the error: "This…
-
How to plot S-parameters for Coil Inductor - FEKO
In FEKO, I have created a wire helix with diameter of 4 inches and 5 turns (1 inch per turn). I want to plot the S-parameters for this simple inductor, but everytime I plot them, S1,1 is 0 dB or slightly positive at 1 dB. I have added straight lines to each end of the helix coil and made these lines each a port. This is…
-
Problems when applying media in CADFEKO
Hi, After importing a .step file into CADFeko, I am trying to change the material of my geometry. I tried following the online instructions to create a custom metallic medium (in my case, aluminium); however, when I try to apply it to the faces of my object in the face properties panel, my custom media does not appear in…
-
Edge meshing get too small
Hello, I am trying to simulate a thin plate whose thickness has to go smaller and smaller. I have a problem because FEKO keeps meshing the edge of my structure with thin triangles : I understand that since there is a lateral face of small thickness, FEKO tries to keep the ratio of my triangles reasonable. However, I really…
-
Near surface field values with FEKO
Hello, I have a question concerning the near surface field values in FEKO. I understand that FEKO is computing surface current and make them radiates with Green function to have field in space. When I ask the field value near a surface, I can see the field growing as 1/r. This is expected since this is the formula for a…
-
Probleme d4execution de WRAP
WRAP 26 won't open, what's the solution? I previously installed Altair Feko 2026 before WRAP; It runs on Windows 10/64-bit in a Dell Altitude 7480.
-
Regarding feko's weighting function
I have a question regarding the specifications of feko's moment method. There are several types of weighting functions for the moment method. Which function does feko use?
-
How do i calculate the phase center of an antenna using FEKO?
For what i understood from the documentation, by default phase center calculation is not available in FEKO. I found an script provided by FEKO to do such calculation. However, when i try to execute it, i got an error because i don't have a library called : "phase_centre_utility" Where can i get that library? Or is there…
-
How to set PMC as the medium of a face/rectangle?
Description: In my FEKO simulation, I am trying to set a certain rectangle's face medium as a perfect magnetic conductor. Even though PMC is listed as a medium in the definitions (picture 1), it is not available as a medium in the face medium dropdown options (picture 2). Is there any other way to do this? Product/Topic…
-
Using FEM in feko
Hello, I am trying to use the FEM of feko to solve part of my problem and have some troubles with meshing and material representation. I try to simulate some copper plate : top face : 20mm x 4mm thickness : 500nm frequency : 1GHz < - > wavelength : 300mm excitation : plane wave incident to the face Since the skin depth of…
-
FEKO : wave through a really thin plate (thickness around skin depth)
Hello, I am trying to use FEKO to solve a problem where I basically have a plate whose thickness is less than the skin depth of my metal at the frequency of interest : freq : 1GHz skin depth : 2um material : copper thickness of plate : 500nm I used the 3d MoM method since the 2d method cannot converge here (I have an other…
-
feko licence error
After repeatedly reinstalling and activating Feko to fix an error, it seems I exceeded the activation limit, and now I can no longer deactivate it as shown below. I want to reset the activation limit count. How can I do this?
-
Exciting Update! New Sessions added to the Community Electromagnetic Chat Series
Hi All, Happy New Year! We have an exciting update for you. The Community electromagnetic chat series will continue this year and we already have the schedule ready for January 2026. This monthly series is designed to empower industry experts by providing them with insights into the latest features, workflows, and…
