Feko is a comprehensive electromagnetic solver with multiple solution methods that is used for electromagnetic field analyses
involving 3D objects of arbitrary shapes.
The terms, dataset, slice, trace and 3D result, are used extensively in the documentation. Review the definitions
to get a better concept of these definitions.
Display result data on a graph to allow visual interpretation of the data in a human-readable format, as well as to
communicate the results in reports and presentations.
View the simulation data in a 3D view to allow visual interpretation of the data in a human-readable format, as well as to communicate the results
in reports and presentations. The 3D view can also be used to verify that the CADFEKO or EDITFEKO model is correct.
Add up to four legends to a predefined location on the 3D view. Bind the legend to a specific entity (for example, far field data or mesh display), based on the results
displayed in the 3D view.
Store a local copy of the underlying data that is represented by the 3D simulation result. By storing a local copy,
you can modify the existing model and compare the old results to new results.
Show or hide the display of symmetry, the finite difference time domain (FDTD) boundary, the periodic boundary condition (PBC) boundary and the array base element for finite arrays.
A number of mesh display settings are available to give you full control of the mesh rendering in the 3D view. These settings are useful if you want to verify the model (simulation mesh).
View the visibility settings for segments, triangles, apertures, windscreens, tetrahedra, voxels, cuboids and uniform theory of diffraction (UTD) polygons and cylinders.
The Solver contains a number of frequency domain solution methods, as well as a time domain solution method. By default, all
simulation results are obtained in the frequency domain, unless explicitly using the time analysis tool in
POSTFEKO to convert the results to the time domain.
With the time analysis tool in POSTFEKO, electromagnetic scattering problems can be analysed in the time domain. The time domain results are obtained
by applying an inverse fast Fourier transformation (IFFT) on the frequency domain simulation results.
POSTFEKO is a useful tool to help analyse and present data in a useful format. It is often required to use the processed results
in a report or presentation. To help make it easier to generate these reports, several tools are available
in POSTFEKO.
POSTFEKO has a collection of tools that allow you to quickly validate the model, for example, measure distances, measure
angles and finding specific mesh elements.
EDITFEKO is used to construct advanced models (both the geometry and solution requirements) using a high-level scripting language
which includes loops and conditional statements.
One of the key features in Feko is that it includes a broad set of unique and hybridised solution methods. Effective use of Feko features requires an understanding of the available methods.
Feko offers state-of-the-art optimisation engines based on generic algorithm (GA) and other methods, which can be used
to automatically optimise the design and determine the optimum solution.
Feko writes all the results to an ASCII output file .out as well as a binary output file .bof for usage by POSTFEKO. Use the .out file to obtain additional information about the solution.
CADFEKO and POSTFEKO have a powerful, fast, lightweight scripting language integrated into the application allowing you to create
models, get hold of simulation results and model configuration information as well as manipulation of data and automate
repetitive tasks.
View the simulation data in a 3D view to allow visual interpretation of the data in a human-readable format, as well as to communicate the results
in reports and presentations. The 3D view can also be used to verify that the CADFEKO or EDITFEKO model is correct.
A number of mesh display settings are available to give you full control of the mesh rendering in the 3D view. These settings are useful if you want to verify the model (simulation mesh).
Specify the mesh opacity as well as the opacity of windscreens triangles and aperture
triangles.
The mesh opacity settings are available on the 3D View contextual tabs set, on the
Mesh tab in the Opacity group.
Note: Only the opacity settings relevant are available. For example, if the model does not
contain any windscreens the Windscreen icon is disabled.
Table 1. Display options for mesh opacity, windscreens triangles and aperture triangles.
Icon
Icon text
Description
Mesh opacity
Specify the opacity for mesh elements.
Windscreen
Specify the opacity for windscreen elements.
Aperture
Specify the opacity for aperture elements.
Note: For all the opacity settings, a drop-down list is available to specify a
custom opacity level. A level of 100% is equivalent to setting no opacity, and 0% is equivalent
to full transparency.