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Get Started
The Feko Getting Started Guide contains step-by-step instructions on how to get started with Feko.
Optimisation of Bent Dipole and Plate
The example considers the optimisation of the gain of a bent dipole in front of a plate.
Reviewing POSTFEKO and Launching OPTFEKO
Open POSTFEKO from within CADFEKO.
Launching OPTFEKO
Run OPTFEKO and view the output of the optimisation progress.

Welcome
Release Notes
See what's new in the latest release.
Get Started
The Feko Getting Started Guide contains step-by-step instructions on how to get started with Feko.
- Creating a Rectangular Horn
  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.
- Creating CADFEKO Models
  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.
- GPS Patch Antenna
  The example considers a left-handed circular polarised GPS patch antenna on a finite substrate.
- GPS Patch on Quadcopter
  The example considers the antenna placement of a GPS patch antenna on a quadcopter.
- EMC Coupling
  The example considers the coupling between a typical monopole antenna and a loaded transmission line above a ground plane.
- Waveguide Power Divider
  The example considers the transmission and reflection coefficients of a waveguide power divider.
- Optimisation of Bent Dipole and Plate
  The example considers the optimisation of the gain of a bent dipole in front of a plate.
  - Example Overview
    Calculate and maximise the gain of a bent dipole in front of a plate. Optimise the dipole-plate separation distance and the dipole bend-angle.
  - Topics Discussed in this Example
    Before starting this example, check if the topics discussed in this example are relevant to the intended application and experience level.
  - Example Prerequisites
    Before starting this example, ensure that the system satisfies the minimum requirements.
  - Creating the Model in CADFEKO
    Create the model geometry using the CAD component, CADFEKO.
  - Launching the Solver
    Launch the Solver to calculate the results. No requests were added to this model since impedance and current information are calculated automatically for all voltage and current sources in the model.
  - Reviewing POSTFEKO and Launching OPTFEKO
    Open POSTFEKO from within CADFEKO.
    - Setting Up POSTFEKO to View Optimisation Progress
      Create a 3D view with the far field results as well as two Cartesian graph to view the distance parameter and far field goal.
    - Launching OPTFEKO
      Run OPTFEKO and view the output of the optimisation progress.
    - Viewing the Optimisation Results
      View the optimisation results obtained by OPTFEKO.
  - Closing Remarks
    This example showed the construction and optimisation of a bent dipole in front of a plate.
Examples
The Feko Example Guide contains a collection of examples that teaches you Feko concepts and essentials.
Introduction to Feko
Feko is a comprehensive electromagnetic solver with multiple solution methods that is used for electromagnetic field analyses involving 3D objects of arbitrary shapes.
CADFEKO
CADFEKO is used to create and mesh the geometry or model mesh, specify the solution settings and calculation requests in a graphical environment.
POSTFEKO
POSTFEKO, the Feko post processor, is used to display the model (configuration and mesh), results on graphs and 3D views.
EDITFEKO
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.
Feko Solution Methods
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.
Optimisation in Feko
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 Utilities
The Feko utilities consist of PREFEKO, OPTFEKO, ADAPTFEKO, the Launcher utility, Updater and the crash reporter.
Description of the Output File of Feko
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.
Feko Application Macros
A large collection of application macros are available for CADFEKO and POSTFEKO.
Scripts and Application Programming Interface (API)
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.
Appendix
Reference information is provided in the appendix.

Launching OPTFEKO

Run OPTFEKO and view the output of the optimisation progress.

The following steps are performed in POSTFEKO, but the optimiser can also be launched from CADFEKO

On the Home tab, in the Run/Launch group, click the OPTFEKO icon.

Note: The Executing optfeko dialog is displayed in a condensed format.
Click Details to view any problems encountered during the optimisation process.

Figure 1. The Executing optfeko dialog in condensed format.
Scroll to the bottom of the Executing optfeko window output to view the onvergence information, as well as the optimal parameters.

Note: Sensitivity information is included if sufficient data is available for the analysis.

Figure 2. The Executing optfeko dialog with details.
The Executing optfeko window displays the optimum values as follows:
- alpha: 81.416°
- d: 0.786 meters