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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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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…
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Error message after updating FEKO to 2025.1.1
Hello, I've just update FEKO from 2025.1 to 2025.1.1. Chan launching a cadfeko file, I got the message : "Your application macro library is corrupted, please contact support" The soft works well however. Any idea how to solve this ? And by the way, do i have compatibility of files between the two versions ? Thanks a lot,…
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Broadband V/UHF Wire Monopole Antenna 30-512 MHz
Hi, I am currently working on the design of a broadband V/UHF wire monopole antenna covering the 30–512 MHz frequency range in Altair FEKO. Although I can model a basic wire monopole structure, the antenna exhibits a narrowband response, and I am looking for methods to increase the operational bandwidth. Could you please…
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Error: Feko solver hangs / stops when running simple dipole simulation on new PC
Hello everyone, I am using Altair Feko (version 2025.1) on Windows (64-bit).Recently I moved my simulation to a more powerful PC. I’m trying to run a simple dipole-antenna simulation (just a basic dipole), but the solver halts at startup: the GUI shows the “runfeko” command and then nothing proceeds — the simulation never…
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CADFEKOv2025.1.1 Optimization Mask Import Points Crash
Hello! When I try to import points to create an optimization mask in CADFEKO v2025.1.1, CADFEKO crashes with two error messages the moment I hit "Ok" on the "Import Points" dialog with a file selected; the first error says: The application has terminated in an unexpected way. Please contact support with a description of…
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Simulation of a RG316 with EditFeko
Hello, I am still working on this issue and would like to know how to replace one of my two wires on the outer side with a coaxial cable such as an RG316. Is it possible to simulate this in EditFeko without using CadFeko? Thank you for your response. Here is my current code. ** PARAMETRES DU CALCUL ** BANDE DE FREQUENCES…
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Curvilinear Higher-Order Basis Functions (HOBFs) in Feko
Feko solver settings offer several options to choose different simulation approaches and sometimes it can be tricky to pick the best option for a simulation problem. In this article we discuss use cases where curvilinear higher order basis functions have advantages. The default option in Feko for MoM simulation are the…
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Are vias needed with GCPW and clip SMA port?
In this AA Feko writeup the vias appear to connect CPW ground tracks to the lower ground plane, meaning the actual signal ground from feed is on the ground plane. If we use PCB SMA edge port (coaxial connector) where the connector ground lugs are soldered to both the top CPW ground tracks and the lower ground plane,…
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Why we can set frequency 0HZ for DC in solenoid model in CADFEKO ?
Hi, I want to know is there any way to set zero frequency in CADFEKO .
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A DLL problem of PostFeko
Hi, I encountered a problem of DLL when using PostFeko in Feko 2025.1. The CadFeko could function perfectly, but the PostFeko can't be started by any means. I tried to uninstall and reinstall the program but that doesn't work. Please take a look at this problem. Here are some information about the environment: The program…
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Solenoid model in FEKO 2024.1
Hi. My name is Mohsin Jamil and I am a graduate student at the College of William & Mary. I am working on a project in which I have to compute the magnetic field inside a solenoid carrying a current 100 mA. The number of turns are 139, and solenoid length is 60mm. The two ends(free ends) of the solenoid should be connected…
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Lua code to select number of processes in CADFEKO
Hello all, Does somebody know the command in LUA to specify the number of cores to use during simulation ? I tried the "record macro" option and then selecting the number of cores but it does not record this particular action (maybe a feature to add ?) I've looked at documentation and did not found the command to set it…
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How can I remove the hole in ground plane and add the wire probe in this step file ? [v 2023.1]
Here I am attaching the Step file of a probe fed microstrip patch. This step file already have a cylindrical probe attached with the patch. Also there is a hole in the ground plane of the antenna. How can I remove the cylindrical probe from this file and can add wire probe? How can I fill up this ground plane hole in this…
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POWER CALCULATION FOR array antenna(V 2023.1)
Hello I am using an "active port" simulation for a 4x1 conformal probe-fed antenna array. My question is: when we select the voltage source for each port (see the screenshot), it is 1 V for each port in my array. Then what is actually the input power of my total array ? For doing the active port simulation, see my other…
