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Feko Utilities
The Feko utilities consist of PREFEKO, OPTFEKO, ADAPTFEKO, the Launcher utility, Updater and the crash reporter.
Updater
The feko_update_gui utility and the feko_update utility allows you the flexibility to install an update containing features, minor software enhancements and bug fixes on top of an existing base installation for Altair Feko (which includes Feko, newFASANT and WinProp).
Version Numbers
Each major release, upgrade or update is assigned a version number. A version number contains a unique set of numbers assigned to a specific software release for identification purposes. You can determine from the version number if its an initial release, update or upgrade.

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.
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.
- The Preprocessor PREFEKO
  Use PREFEKO to perform meshing and to prepare the input files for the Feko solver.
- Running PREFEKO
  Use PREFEKO with the correct syntax and optional parameters for advanced control.
- The Solver
  The Solver is the electromagnetic solver component that calculates the specified output requests.
- OPTFEKO
  OPTFEKO is the component that controls the optimisation process. The optimisation parameters are usually associated with geometric dimensions, material properties, excitations and loadings. For example, the gain of a horn antenna is maximised by varying the size of the horn aperture.
- ADAPTFEKO
  ADAPTFEKO is the adaptive frequency utility used to automatically select smaller frequency steps near narrow resonances and larger steps where the results are relatively smooth.
- AMRFEKO
  AMRFEKO is the adaptive mesh refinement utility used to automatically refine the mesh.
- Environment Initialisation Script - initfeko
  The initfeko.bat (batch file on Windows) and initfeko (bash shell script on Unix / Linux) scripts are executed from a terminal to configure the Feko environment. From this environment, the Feko applications can be launched without using their full path.
- Launcher Utility
  The Launcher utility is a single application that allows you quick access to the shortcuts for the Feko components, WinProp components (Microsoft Windows only), newFASANT, WRAP components (Microsoft Windows only), documentation, Altair license utility and updating parallel credentials. Pin the application to the taskbar for quick launching.
- Updater
  The feko_update_gui utility and the feko_update utility allows you the flexibility to install an update containing features, minor software enhancements and bug fixes on top of an existing base installation for Altair Feko (which includes Feko, newFASANT and WinProp).
  - Version Numbers
    Each major release, upgrade or update is assigned a version number. A version number contains a unique set of numbers assigned to a specific software release for identification purposes. You can determine from the version number if its an initial release, update or upgrade.
  - GUI Update Utility
    Use the feko_update_gui to check for new versions of the software and install an update using a graphical user interface (GUI).
  - Command Line Update Utility
    Use the feko_update utility for scripted updates or updates from a Feko terminal.
  - Proxy Settings Overview
    The feko_update_gui utility and feko_update utility (GUI and command line) use the system proxy by default, although it may be changed or the use of a proxy suppressed.
  - Creating a Local Update Repository
    Create a local Feko update repository to allow users to update without internet access or to limit the list of update versions that users can use. Local update repositories can also be used to reduce the amount of data being downloaded by downloading a repository once and making it available to many local machines or compute clusters.
- The Multiport Processor
  The multiport processor allows you to calculate results for changes in the port excitations and loading without rerunning the Solver.
- S-Parameter Port De-embedding Calculator
  The command line utility accepts an augmented S-parameter network definition, de-embeds the specified ports using 2-port calibration definitions and exports the result to an S-parameter Touchstone file.
- Crash Report Utility
  In the event of a crash occurring in CADFEKO, POSTFEKO or EDITFEKO, the crash report utility generates a crash report.
- QUEUEFEKO
  QUEUEFEKO is a graphical user interface (GUI) application that can create a package which you can transport to a remote queuing system. Created packages can be extracted once the simulation on the queuing system has been completed.
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.

Version Numbers

Each major release, upgrade or update is assigned a version number. A version number contains a unique set of numbers assigned to a specific software release for identification purposes. You can determine from the version number if its an initial release, update or upgrade.

The following terminology is used to define a version number:

Feko <Major>.<Minor>.<Patch>

for example:

Feko 2019.1.2

2019

Indicates the major release version. A major release is made available roughly once a year and has a minor and patch version of 0.

Note:

The update utility does not support upgrades between major versions.
A major release requires a new installer.

1: Indicates the minor release version and is referred to as an upgrade. Large feature enhancements and bug fixes are included in the upgrade. Minor upgrades are released quarterly, for example 1 indicates the first minor upgrade after the initial release. Use the update utility to upgrade to a newer minor version (when available).

2: Indicates the patch version and is referred to as an update or hot fix. Minor feature enhancements and bug fixes are included in the update. Patch updates are released between minor upgrades, for example 2 indicates the second patch update after an upgrade.