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.

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.

When performing a time analysis where lower frequencies are not simulated and need to be estimated, different options
are available to extrapolate the spectral component of the simulation result to 0 Hz.

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.

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.

The total length of the signal in the specified units.

Amplitude (${u}_{0}$)

The amplitude of the time signal.

Pulse delay (${t}_{0}$)

The pulse delay is the time until the peak of the time signal envelope.

Pulse width (${p}_{w}$)

This is the half-amplitude pulse width of the signal. The pulse width is the
total length of time that the signal is above 50% of its peak value (${u}_{0}$).

Rise time (${\tau}_{1}$)

The time required for the pulse to reach its peak value (${u}_{0}$) from rest.

Fall time (${\tau}_{2}$)

The time required for the pulse to reach the rest value from its peak (${u}_{0}$).

Note: The discharge time will be
determined by the pulse width (${p}_{w}$).

Number of samples

The number of samples taken from the signal’s analytical equation.