The example is intended for users with no or little experience with CADFEKO. It makes use of a completed rectangular horn model to familiarise yourself with model creation in CADFEKO and viewing the simulated results in POSTFEKO.
This example shows a completed rectangular horn model to familiarise yourself with the Feko components and workflow. The main elements and terminology in the CADFEKO and POSTFEKOgraphical user interface are discussed.
The example is intended for users with no or little experience with CADFEKO. This example is not an example intended for simulation, but rather to familiarise yourself with model creation in
CADFEKO.
The example considers the reflection coefficient and impedance of a microstrip patch antenna on a substrate modelled
on an infinite substrate and then on a finite substrate.
Feko is a comprehensive electromagnetic solver with multiple solution methods that is used for electromagnetic field analyses
involving 3D objects of arbitrary shapes.
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.
The example is intended for users with no or little experience with CADFEKO. It makes use of a completed rectangular horn model to familiarise yourself with model creation in CADFEKO and viewing the simulated results in POSTFEKO.
View the model using visualisation tools in POSTFEKO
to ensure the model was created as intended.
Ensure the horn model is open in the 3D view.
By default the mesh edges of the model is not displayed in the 3D view.
Enable the mesh edges.
On the 3D View
contextual tabs set, on the Mesh tab, in the
Visibility group, click the Metal icon. From the drop-down list, select the
Edges check box.
Disable the display of the symmetry planes.
On the 3D View
contextual tabs set, on the Display tab, in the
Method display group, click the Symmetry icon.
Sources in the model are displayed by default.
Disable the display of sources in the model.
On the 3D View
contextual tabs set, on the Display tab, in the
Entities group, click the Sources icon.
To view the full-length horn in the 3D view, zoom the
horn to the extents of the window.
Zoom to extents of the 3D view using one of the following
workflows:
On the View tab, in the
Zooming group, click the Zoom to extents icon.
Press F5 to use the keyboard
shortcut.
Enable the tick marks on the axes.
On the 3D View
contextual tabs set, on the Display tab, in the
Axes group, click the Tick marks icon.
Use the distance measurement tool to validate the dimensions of the horn.
On the 3D View
contextual tabs set, on the Mesh tab, in the
Tools group, click the Measure distance icon.
On the Measure distance dialog, ensure the
Point1 field is active.
Note:An active field allowing point-entry is indicated by a
yellow background.
In the 3D view, press Ctrl+Shift+left click on the first point.