Altair Feko 2021.1 Documentation
Altair Feko 2021.1 Documentation

  1. Home
  2. Examples

    The Feko Example Guide contains a collection of examples that teaches you Feko concepts and essentials.

  3. Waveguide and Microwave Circuits

    Simple examples demonstrating using waveguides and microwave circuits.

  4. S-Parameter Coupling in a Stepped Waveguide Section

    Calculate the transmission and reflection for a stepped waveguide transition from the Ku- to X-band. Use two solver methods, the method of moments (utilising waveguide ports) and the finite element method (utilising FEM modal ports).

  5. S-Parameter Coupling in a Stepped Waveguide Section (FEM)

    Calculate the transmission and reflection through the waveguide with the finite element method. Use FEM modal ports for the source. Modify the model from topics/feko/example_guide/waveguide_microwave_circuits/waveguide_section_mom_intro_feko_t.html.

  • Release Notes
  • Get Started
  • Examples
  • Introduction to Feko
  • CADFEKO
  • POSTFEKO
  • EDITFEKO
  • Feko Solution Methods
  • Optimisation in Feko
  • Feko Utilities
  • Description of the Output File of Feko
  • Feko Application Macros
  • Scripts and Application Programming Interface (API)
  • Appendix
Index
Altair Feko 2021.1 Documentation

Altair Feko 2021.1 Documentation
  • 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.

    • Antenna Synthesis and Analysis

      Simple examples demonstrating antenna synthesis and analysis.

    • Antenna Placement

      Simple examples demonstrating antenna placement.

    • Radar Cross Section (RCS)

      Simple examples demonstrating radar cross section (RCS) calculations of objects.

    • EMC Analysis and Cable Coupling

      Simple examples demonstrating electromagnetic compatibility (EMC) analysis and cable coupling.

    • Waveguide and Microwave Circuits

      Simple examples demonstrating using waveguides and microwave circuits.

      • Microstrip Filter

        Calculate the S-parameters of a simple microstrip notch filter. Use different solvers and compare the results.

      • S-Parameter Coupling in a Stepped Waveguide Section

        Calculate the transmission and reflection for a stepped waveguide transition from the Ku- to X-band. Use two solver methods, the method of moments (utilising waveguide ports) and the finite element method (utilising FEM modal ports).

        • S-Parameter Coupling in a Stepped Waveguide Section (MoM)

          Calculate the transmission and reflection for the waveguide with the method of moments. Use waveguide ports for the sources.

        • S-Parameter Coupling in a Stepped Waveguide Section (FEM)

          Calculate the transmission and reflection through the waveguide with the finite element method. Use FEM modal ports for the source. Modify the model from topics/feko/example_guide/waveguide_microwave_circuits/waveguide_section_mom_intro_feko_t.html.

          • Creating the Model

            Create the model in CADFEKO. Define any ports and sources required for the model. Specify the operating frequency or frequency range for the model.

          • Defining Calculation Requests

            Define the calculation requests in CADFEKO.

          • Meshing the Model

            Create the model mesh in CADFEKO using the correct settings. A mesh is a discretised representation of a geometry model or mesh model used for simulation in the Solver.

          • Validating the Model

            Run the computational electromagnetic (CEM) validate tool to perform basic validation on the CADFEKO model.

          • Running the Feko Solver

            Run the Solver to compute the calculation requests.

        • Viewing the Results

          View and post-process the results in POSTFEKO.

      • Using a Non-radiating Network to Match a Dipole Antenna

        Match a short dipole for resonance at 1.4 GHz with an LC matching section. The matched network is modelled using a Spice circuit and S-parameters.

      • Subdividing a Model Using Non-Radiating Networks

        Calculate the input impedance of a circularly polarised patch antenna fed through a microstrip branch coupler. Replace the branch coupler with a non-radiating network and compare with a full solution.

      • Microstrip Coupler

        Calculate the S-parameters (coupling) of a four port microstrip coupler. Use the finite difference time domain method.

    • Bio Electromagnetics

      Simple examples demonstrating phantom and tissue exposure analsysis.

    • Time Domain

      A simple example demonstrating the time analysis of an incident plane wave on an obstacle.

    • Special Solution Methods

      Simple examples demonstrating using continuous frequency range, using the MLFMM for large models, using the LE-PO (large element physical optics) on subparts of the model and optimising the waveguide pin feed location.

    • User Interface Tools

      Simple examples demonstrating using Feko application automation, matching circuit generation with Optenni Lab and optimising a bandpass filter with HyperStudy.

  • 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.

Altair Feko 2021.1 Documentation
Altair Feko 2021.1 Documentation

  1. Home
  2. Examples

    The Feko Example Guide contains a collection of examples that teaches you Feko concepts and essentials.

  3. Waveguide and Microwave Circuits

    Simple examples demonstrating using waveguides and microwave circuits.

  4. S-Parameter Coupling in a Stepped Waveguide Section

    Calculate the transmission and reflection for a stepped waveguide transition from the Ku- to X-band. Use two solver methods, the method of moments (utilising waveguide ports) and the finite element method (utilising FEM modal ports).

  5. S-Parameter Coupling in a Stepped Waveguide Section (FEM)

    Calculate the transmission and reflection through the waveguide with the finite element method. Use FEM modal ports for the source. Modify the model from topics/feko/example_guide/waveguide_microwave_circuits/waveguide_section_mom_intro_feko_t.html.

  • Release Notes
  • Get Started
  • Examples
  • Introduction to Feko
  • CADFEKO
  • POSTFEKO
  • EDITFEKO
  • Feko Solution Methods
  • Optimisation in Feko
  • Feko Utilities
  • Description of the Output File of Feko
  • Feko Application Macros
  • Scripts and Application Programming Interface (API)
  • Appendix
Index

S-Parameter Coupling in a Stepped Waveguide Section (FEM)

Calculate the transmission and reflection through the waveguide with the finite element method. Use FEM modal ports for the source. Modify the model from S-Parameter Coupling in a Stepped Waveguide Section (MoM).

  • Creating the Model
    Create the model in CADFEKO. Define any ports and sources required for the model. Specify the operating frequency or frequency range for the model.
  • Defining Calculation Requests
    Define the calculation requests in CADFEKO.
  • Meshing the Model
    Create the model mesh in CADFEKO using the correct settings. A mesh is a discretised representation of a geometry model or mesh model used for simulation in the Solver.
  • Validating the Model
    Run the computational electromagnetic (CEM) validate tool to perform basic validation on the CADFEKO model.
  • Running the Feko Solver
    Run the Solver to compute the calculation requests.

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