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Feko Application Macros
A large collection of application macros are available for CADFEKO and POSTFEKO.
CADFEKO Application Macros
A collection of Lua application macros are available to automate repetitive tasks in CADFEKO.
Create Coaxial Feed Macro
The Create Coaxial Connector Feed application macro creates a coaxial connector on a finite substrate.
Using the Application Macro
Run the Create Coaxial Connector Feed application macro to create a coaxial connector on a finite substrate.

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.
Feko Application Macros
A large collection of application macros are available for CADFEKO and POSTFEKO.
- Application Macros
  An application macro is a reference to an automation script, an icon file and associated metadata.
- Application Macro Library
  The application macro library allows commonly used application macros to be stored in a repository.
- CADFEKO Application Macros
  A collection of Lua application macros are available to automate repetitive tasks in CADFEKO.
  - Transfer User Configurations
    This application macro transfers settings and application macros between different versions of Feko. This may be useful if you have customised one installation of Feko and want to use the same settings in a concurrent installation.
  - Generate Antenna Array
    The application macro allows you to create an array of elements. Specify the number of elements and offset between the elements, or import the coordinates from file to create an irregular-spaced array. For the array amplitude distribution, select a mathematical distribution (such as cosine) or import the magnitude and phase for each element from file.
  - Compare CADFEKO Models
    The application macro allows you to compare two CADFEKO models to find the differences between the two models.
  - Create Edge Port on Finite Substrate Macro
    The Create Edge Port application macro creates an edge port on a finite substrate.
  - Create Coaxial Feed Macro
    The Create Coaxial Connector Feed application macro creates a coaxial connector on a finite substrate.
    - Using the Application Macro
      Run the Create Coaxial Connector Feed application macro to create a coaxial connector on a finite substrate.
  - Other CADFEKO Application Macros
    A collection of smaller CADFEKO application macros are available, but these macros do not include step-by-step instructions.
- POSTFEKO Application Macros
  A collection of Lua application macros are available to automate repetitive tasks in POSTFEKO.
- Shared Application Macros
  A collection of Lua macros are available to automate repetitive tasks where the workflow span both 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.

Using the Application Macro

Run the Create Coaxial Connector Feed application macro to create a coaxial connector on a finite substrate.

Open a CADFEKO model where you would like to add a coaxial connector.
Run the Create Coaxial Connector Feed application macro from the application macro library in CADFEKO.

Figure 1. The Create Coaxial Connector Feed dialog.
In the Specify coaxial dielectric drop-down list, select the insulating connector dielectric.
In the Specify points group, specify the named points to define the location of the coaxial connector.

Note: Point C can be any point on the surface of the substrate (it is not required to be on the edge of the substrate).
In the Specify diameter using variable or value group, specify the following:
1. In the Outer diameter (d_od) field, specify either a defined variable or a value for the outer diameter of the connector.
2. In the Inner diameter (d_id) field, specify either a defined variable or a value for the inner diameter of the connector.
  
  Note: The unit for the diameter (outer and inner) and the length is taken as the model unit and indicated in brackets next to the relevant input fields.
In the Specify coaxial length using variable or value group, specify the coaxial length of the connector.
In the Excite coaxial feed group, select one of the following options:
- None: No port or excitation is added to the coaxial connector.
- Edge port: The coaxial connector is fed using an edge port with a voltage source. The construction takes into account the limitation that a port cannot be placed on the boundary of a finite dielectric substrate when using the method of moments (MoM).
- Waveguide port: The coaxial connector is fed using a waveguide port with a waveguide source.
In the Select part to union with connector drop-down list, select the model part that will be unioned with the coaxial connector.
In the Select configuration drop-down list, select a configuration. The specified configuration determines if a global or local source should be added. The frequency of the configuration is also used to determine the edge mesh refinement.
Click Create to run the script and to create the coaxial connector.