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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…
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Upcoming Altair Community Events & Your Feedback Needed
Hi Everyone, As we look ahead to the final months of 2025, we're thrilled to announce that we have added few more sessions to our ongoing community series. We want to hear from You! Your ideas and feedback helps us create the experiences our community truly wants. Drop a comment below and let us know what events or…
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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…
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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…
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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…
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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.
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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?
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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…
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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…
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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…
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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…
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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?
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Only 50% CPU usage : normal or not ?
Hello, I am running simulation with FEKO and was wondering if the 50% CPU print by my task monitor was normal or not I have TWO cpus on my machine, both with 32 cores (AMD EPYC 9374F 32-Core Processor, 3850 MHz) —> My simulations are set up as to use 64 processes, which they do. However, I wonder if this 50% percent is…
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Combined SEP and VEP in MoM
Hello, I would like to perform a simulation of a rectangular piece of metal with half of it being solved with the Surface Equivalent Principle method, and the other half being solved by th Volume Equivalent Principle method. Would this be possible ? I wonder how to tell FEKO that the two blocks actually form one big block.…
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How to calculate the total phase of the surface current?
How to calculate the total phase of the surface current? In the .os file of feko, there are amplitude and phase information of the current in different directions presented in the form of real and imaginary parts. Then how to calculate the phase of the current in one direction in total? How can I view the phase of the…
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How to custom mesh size in LUA script of CADFEKO in FEKO 2025?
My script is as follows. MeshSettings = project.Mesher.Settings properties = MeshSettings:GetProperties() properties.MeshSizeOption = cf.Enums.MeshSizeOptionEnum.Custom properties.TriangleEdgeLength = '0.1' MeshSettings:SetProperties(properties) project.Mesher:Mesh() but it's throwing an error. attempt to index field…
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The ground reflection of winprop
Ground reflections in WinProp are very confusing to me. How can ground-reflected paths be obtained in Indoor and Urban scenarios? For example, when I define a horizontal plane, only the direct path appears. Horizontal planes seem to behave differently from the vertical faces of buildings—do they not participate in the…
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Exporting Stored Data
I am trying to compare simulation results from parameter sweeps of antenna geometries that I cannot fully parameterize using the parameter sweep macro as the parameter sweep includes making different numbers of copies of various structures. The PostFeko macro that combines data puts the results in "Stored Data", but when I…
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A problem in using multi-machine parallel for a feko(v2023) model
Hello everyone, I'm following the steps in the article https://community.altair.com/discussion/37216/how-to-run-feko-in-parallel-across-multiple-more-than-one-windows-hosts And have successfully finished remote launching from a windows host to another. However,problem occur when I follow next step,information box seem hung…
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NFS data incompatibility with other EM Tools
FEKO can open near-field data in DAT+XML format exported from CST, but it cannot open data obtained from SAVANT or HFSS. I kindly request the assistance of the relevant parties in providing support for this capability. Alternatively, if there is a different import option available, I would appreciate your guidance.
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Procedure Entry Point Cannot Be Located in DLL
Hi, I have been attempting to run the network_planning WinProp API example as part of Altair Feko v2025.1. At runtime, I have been getting a "The procedure entry point could not be located in the dynamic link library C:\ProgramFiles\Altair\2025.1\feko\bin\EngineNet.dll" error. I have added…
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FDTD Analysis in FEKO: Receiving Antenna Current Not Output Due to Warning
Hello, I am currently performing an FDTD analysis in FEKO. In my simulation model, I have a transmitting antenna, a receiving antenna, and a target placed in the scene. I would like to obtain the current on the center segment of the receiving antenna, but I receive the following warning and the receiving current is not…
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About the details of the Create Rough Surface feature
I am currently using the Create Rough Surface feature in FEKO to generate a surface that represents waves. I would like to understand this feature in more detail. Is the waveform generated by this function based on a regular mathematical shape such as a sine wave, or does it simply generate a surface randomly? I would…
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How to integrate surface current to have total current
Hello, I am wondering how in FEKO we obtain the total current that goes through an element. I can see the surface current very well, but is there an option somewhere to ask for the current through let say a surface ? Or do I have to integrate manually over my surface ? Thank you
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How can add wire probe at the center of the patch transmission line here?[Feko v 2023.1]
https://us.v-cdn.net/6038102/uploads/QMM8F2O5M9IK/mide-project-feko-wire-probe-try-bend.cfx Here in this model, I have two problems How to add a wire probe along the vertical line center of the patch? I can't create the line above the patch due to a coordinate problem. How to remove the air gap coming inside the patch when…
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Cosite Interference Analysis in SimLab 2026.0
Cosite interference is a critical challenge in modern communication platforms, where multiple antennas and radios must coexist in a shared environment without degrading each other’s performance. Altair SimLab offers a streamlined workflow to evaluate, visualize, and mitigate cosite interference, combining full-wave antenna…
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How to set the thickness parameter for metallic structure
Hello, I have trouble selecting the right thickness parameter when applying copper to my structure : I understand the thickness parameter is supposed to be the thickness of my structure. I so have four questions : 1. In the case of a mettalic cube of side 5mm, should i set it to 5mm ? 2. I can read on the tutorial that "It…
