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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.
Geometric Data
Geometric data consist of mesh data for triangles, segments, connections between triangles and segments, dielectric cuboids as well tetrahedra for the FEM and VEP methods.
Connections Between Triangles and Segments
Data for connections between triangles and segments are given for triangles and segments that share connection points.

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.
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.
- Geometric Data
  Geometric data consist of mesh data for triangles, segments, connections between triangles and segments, dielectric cuboids as well tetrahedra for the FEM and VEP methods.
  - Data For Triangles
    Data for triangles consist of metallic triangles, edges, symmetry, dielectric triangles as well as advanced information for corner and end points.
  - Data for Wire Segments
    Data for wire segments consist of data for segments and data for nodes between segments.
  - Connections Between Triangles and Segments
    Data for connections between triangles and segments are given for triangles and segments that share connection points.
  - Dielectric Cuboids
    Data for dielectric cuboids consist of the geometry information such as the medium, label and corner points as well as the basis functions.
  - Tetrahedra
    Data for tetrahedra solved with the FEM or VEP methods consist of the label, medium, coordinates and solution method.
  - Data for Memory Usage
    The data for the memory usage shows the number of mesh elements and basis functions which can be an indication of the memory usage.
- Excitation
  Excitation data consist of voltage sources, plane waves, waveguide sources, equivalent sources and Hertzian dipoles.
- Currents and Charges
  Currents and charges data are supported for triangles and wire segments and can be requested from CADFEKO or with the OS card.
- Finite Conductivity
  Finite conductivity data consists of the material parameters and associated data such as skin effect penetration depth, conductor impedance as well as the power losses per label.
- Near Fields and SAR
  Near fields and SAR data consist of values for the electric and magnetic field strength as well as specific absorbtion rate (SAR) data.
- Far Fields and Receiving Antennas
  Far fields and receiving antennas data consist of the electric far field data, RCS, gain, directivity and radiated power.
- S-parameters
  S-parameters data consist of the S-parameters for all active ports as well as a table of reference impedances used at each port.
- Computation Time and Peak Memory
  Computation time and memory data consist of the computation time for the different stages of the solution such as checking the geometry and matrix calculation time. The peak memory and memory per process is also provided.
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.

Connections Between Triangles and Segments

Data for connections between triangles and segments are given for triangles and segments that share connection points.

Note: The below data is only given if there are connections between triangles and segments.

             GEOMETRIC DATA OF CONNECTIONS SEGMENTS - TRIANGLES

      Data of triang.data of segm.                 info of symmetry    
 no.   DRENUM DREPOI  SEGNUM SEGPOI    angle        yz     xz     xy  status
     1                    11      1  360.0000        0      0      0  unknown
           15      1                  45.0000
           33      1                  45.0000
           55      1                  45.0000

Each connection point is assigned a consecutive number which is given in the first column. The column DRENUM gives the number of the triangle at the connection point, while the connecting vertex (1 to 3) is listed in the column DREPOI. Likewise the column SEGNUM gives the connecting segment’s number and the connecting end in the SEGPOI column. If the start point of the segment is connected, SEGPOI=1, else the end point is connected and SEGPOI=2. The column angle gives the angle that is formed by the triangle at the connection point (in degrees). The meaning of the symmetry information in the last four columns is the same as that of the metallic triangles.