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How to simulate for a series of antenna.azimuth angles in api
Hello, I was trying to simulate with the api of WinPro. When it comes to define the antenna, I wonder if there is a way to input a vector so that multiple angles can be simulated at once. I noticed the variable WinPropAntenna.Azimuth is defined as a double and there's no exmple of it being a vector in the handbook. Thanks…
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ERROR 31061: ADAPTFEKO run will terminate now due to error in RUNFEKO
I am trying to generate a 15x15 rectangular patch array. I have started by using the component library and specifying a frequency for a single element. This single element runs. when I create a 4 x 4 array and change the properties of the substrate, change the Cuboid1 width (W) so that elements do not overlap, and run the…
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FEKO-Transition matrix (T-matrix) of a metalic cylinder scatterer
How can we compute Transition matrix (T-matrix) of a metalic cylinder scatterer in FEKO ? Are there any tutorial available for Transition matrix computation for an arbitrary scatterer ?
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FEKO-Generalized scattering matrix
How can we compute the generalized scattering matrix out of the spherical mode expansion (exported to the *.sph file) following the formulations in the book J. E. Hansen: Spherical Near-Field Antenna Measurements, 1988.
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unable to obtain the near field data after applying time signal.
I have applied a time signal(Gaussian pulse) on an aperture and I am to obtain the near field behavior. I am unsure if there is an error with the sampling or anything else. I am attaching my postfeko file here.
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Error: transmission line requires valid port
I am new here. i tried to simulate a LPDA Antenna. there is a step where I need to create a transmission line. But I alwys get the same error.: transmission line requires a valid port. I dont know how to set the port. It has been tree days that i am trying with every tools that I have but nothing.
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Scattering in RL-GO
As I was using the RL-GO solver in a radar application, I noticed that it casts rays from the source that do not end at the "receiver" (the near field sampler). Instead, the end of a ray is denoted with an "S," which the documentation describes as an "observation point." Here is a picture of one ray: My source is the…
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Unable to mesh port 'WirePort1'. Wires may not be embedded in PEC regions.
I am practicing through Feko_Example_Guide 2023.1. This is the error I am facing : Unable to mesh port 'WirePort1'. Wires may not be embedded in PEC regions. It is appears as I practice example A.8.2 Pin-Fed, FDTD Model, page 59. I have tried several ways to solve but I am not able. Kindly help me out. Find attached…
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parametric sweep of feed position
Dear Altruist, I hope my message will find you well. Could you please let me know how can I do parametric sweep of my feed position and extract the result in CADFEKO v2022.3.For the time being I am using simple wire feed with 50 ohm voltage source. It would be better if anyone could give me a link of video tutorial for…
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Recreating far field pattern from datasheets
Hello everyone, I was wondering if it is somehow possible to recreate the far field of a specific patch Antenna using its technical datasheet. I managed to recreate the 3D radiation pattern using AMAN by recreating the 2D horizontal and vertical radiation patterns from the datasheet and then converting both to a 3D…
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Yaki Design
Hello everyone, I am designing a yagi antenna with 3 magnets with S11<-10dB requirement at 1700-1900MHz but I can only meet the requirement at 1700MHz and not at 1900Mhz, can you help me? Can you help me how to adjust?Thanks.
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Request for Assistance with Feko Simulation Errors: ERROR 33052 & ERROR 39518
I am encountering issues while running simulations for dipole antennas at 100 MHz using Feko, and I would appreciate your assistance in resolving them. 1. Basic Cylinder Dipole Antenna The 100 MHz calculation for this antenna is performed using MLFMM (Multilevel Fast Multipole Method) to reduce computation time. However,…
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Inquiry Regarding Impedance Calculation for Dipole Antenna Model
I am experiencing difficulties calculating the impedance across frequencies for a 50 cm dipole antenna model, which is covered with pure water and PVC. Despite attempting to modify the radius and mesh size of the model, I have been unable to resolve the issue. Additionally, the following error messages appear: The…
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Ferrite Ring Coil macro
Overview This macro will create a ring coil with ferrite core based on user input. Once the ring coil has been created, only a wire port and a voltage source need to be created. A near field request already exists. VEP is used for the ferrite core. A video to demonstrate the workflow is attached. Usage/Installation…
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Can the beams of an antenna at a fixed position be modified during time variant simulation in Winprop?
Hi, I'm trying to do a time variant simulation in WinProp but I only found an example of moving the antenna through a trajactory. I think it's more practical that the antanna site is at a fixed position while the pattern is changing, or rotating. I wonder if there is a method to do so in Proman? Or actually Aman? I also…
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FEKO 2024.1 Student Bundle License Error
Hello everyone, I have recently uninstalled Feko Student Bundle 2023.1 and installed 2024.1 version. When I try to run, for example, CADFEKO, I am getting a License Error, see screenshot below. I deactivated and reactivated the student license but it didn't work. When I looked into the PATHs, I noted that the .lic was…
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FEK Student Edition V2024.1 Release and Student License key used for previous 2023.1, and need WRAP 2024.1
Technical Support, First, I would like to thank you for the release/update to the FEKO Student Edition from 2023.1 to 2024.1. I checked the marketplace today and saw that the FEKO Student Edition V2024.1 is now available. I have removed V2023.1, downloaded V2024.1, and installed it successfully. Note, the WRAP 2024.1 is…
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How to view higher order modes propagation in waveguides using Feko?
Hello Altair Community, I have a questions regarding a waveguide simulation. I have designed a WR-1800 waveguide in Cadfeko and would like to view which modes can propagate in my given frequency range and if, how the field lines look like. I have tried setting up a CMA but I see some issues with the results. When I plot…
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Could you please explain how to add a port at the interface where two cylindrical surfaces overlap when creating a dipole antenna?
Parameter Value (m) a 0.0１ l1 0.5 I am trying to create a dipole antenna model where I need to place a port at the interface where two cylindrical surfaces overlap. I aim to calculate the S-parameters in both underwater and air environments, as shown in the attached figure. When I attempt to create the dipole using a…
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How to select a suitable Feko solver
Considerations for solver selection Altair Feko is a powerful tool featuring a variety of solvers for a vast range of problems. As a result, it could be difficult to decide which solver is the most suitable. In an ideal world, the choice of the solver should automatically be made by Feko - this objective is currently under…
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generalized scattering matrix of an antenna
How can we determine the generalized scattering matrix (with network and radiation ports) of a single antenna using spherical wave expansion in FEKO ? Generalized scattering matrix contains input reflection coefficient (Γ), antenna receiving coefficients (R), antenna transmission coefficients (T) and antenna scattering…
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Equivalent near field source using Cartesian boundary definition method
The use of equivalent sources in Feko is helpful in many cases to significantly reduce the runtime and memory required for simulations. In principle, a model (classically an antenna/array etc.) is replaced by the radiated field (near field or far field), which is then used instead of the antenna/array in other models.…
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Technical Question about Altair Feko API Source Code
Dear Ladies and Gentlemen, I have a technical question regarding the ALtair Feko API source code. Currently, I am investigating the output values of Field Strength when running the API of outdoorpropagation_runms. The output values are being printed in the result1.txt file, which corresponds to the first antenna I created.…
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SAR and Power Density Modelling in FEKO
hi Community i am currently trying to module SAR and Power Density on 5g Radio Frequency EMF on FEKO, but following this video below i cant find the Mesh Phantom Head https://www.youtube.com/watch?v=TVur8zifttE Appreciate the community of experts in helping me module the SAR and Power Density of 5g on the Human phantom…
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How to run Feko in parallel across multiple (more than one) Windows hosts
Background For parallel running Feko uses Intel MPI to manage communication between parallel processes. Recent versions of Intel MPI have removed support for some authentication approaches and rather support the usage of Powershell to manage shell commands. This necessitates a few minor settings changes in Feko…