Calculate the radiation pattern of a dipole in front of an electrically large plate. Several techniques available
in Feko are considered and the results and resource requirements compared.
Calculate the radiation pattern for a horizontally polarised Yagi-Uda antenna consisting of a dipole, a reflector and three directors at 400 MHz. The antenna is located 3 m above a real
ground which is modelled with the Green’s function formulation.
Optimise a Yagi-Uda antenna design to achieve a specific radiation pattern and gain at 1 GHz. The Yagi-Uda antenna consists of a dipole, reflector and two directors.
Calculate the radiation pattern and input impedance for a log periodic dipole array (LPDA) antenna. Non-radiating
transmission lines are used to model the boom of the LPDA antenna.
Model a microstrip patch antenna using two feed methods (pin feed, microstrip edge feed). The dielectric substrate
is considered as a finite substrate and an infinite planar multilayer substrate.
Calculate the input reflection coefficient of an aperture coupled patch antenna. Use continuous frequency sampling
to minimise runtime. Compare results for a finite and infinite dielectric.
Calculate the radiation pattern of a dielectric lens antenna. The lens is illuminated by an equivalent far field source
with an ideal cosine pattern. The lens structure is modelled using the ray launching geometrical optics (RL-GO). Compare
the RL-GO solution with a hybrid FEM/MoM solution.
Calculate the current distribution and far fields for a MIMO elliptical ring antenna. Use characteristic mode analysis
to calculate the results for different modes.
Calculate the far field pattern for a single element in an infinite two-dimensional array of pin-fed patch elements.
The infinite patch array is modelled using periodic boundary condition. Calculate the approximated far field pattern
for a 10x10 element array.
Calculate the radiation pattern for an array of arbitrarily placed pin-fed patch antennas. Use the finite array tool
to construct the array and the numerical Green's function method (DGFM) to minimize computational resources.
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.
Simple examples demonstrating using Feko application automation, matching circuit generation with Optenni Lab and optimising a bandpass filter with HyperStudy.
Feko is a comprehensive electromagnetic solver with multiple solution methods that is used for electromagnetic field analyses
involving 3D objects of arbitrary shapes.
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.
Simple examples demonstrating antenna synthesis and analysis.
Dipole
Calculate the radiation pattern and input impedance for a half-wavelength dipole at 74.9 MHz. The dipole length is 2 m with a wire radius of 2 mm.
Dipole in Front of a Cube
Calculate the radiation pattern for a half-wavelength dipole in front of a cuboid. View the effect of the cuboid on the radiation pattern.
Dipole in Front of a Plate
Calculate the radiation pattern of a dipole in front of an electrically large plate. Several techniques available in Feko are considered and the results and resource requirements compared.
Monopole Antenna on a Finite Ground Plane
Calculate the radiation pattern for a wire monopole antenna on a finite ground plane. The ground plane is modelled as a circular PEC ground plane.
Yagi-Uda Antenna Above a Real Ground
Calculate the radiation pattern for a horizontally polarised Yagi-Uda antenna consisting of a dipole, a reflector and three directors at 400 MHz. The antenna is located 3 m above a real ground which is modelled with the Green’s function formulation.
Pattern Optimisation of a Yagi-Uda Antenna
Optimise a Yagi-Uda antenna design to achieve a specific radiation pattern and gain at 1 GHz. The Yagi-Uda antenna consists of a dipole, reflector and two directors.
Log Periodic Dipole Array Antenna
Calculate the radiation pattern and input impedance for a log periodic dipole array (LPDA) antenna. Non-radiating transmission lines are used to model the boom of the LPDA antenna.
Microstrip Patch Antenna
Model a microstrip patch antenna using two feed methods (pin feed, microstrip edge feed). The dielectric substrate is considered as a finite substrate and an infinite planar multilayer substrate.
Aperture Coupled Patch Antenna
Calculate the input reflection coefficient of an aperture coupled patch antenna. Use continuous frequency sampling to minimise runtime. Compare results for a finite and infinite dielectric.
Dielectric Resonator Antenna on Finite Ground
Calculate the input impedance and radiation pattern of a dielectric resonator antenna (DRA) with a coaxial pin feed on a finite ground.
Dielectric Lens Antenna
Calculate the radiation pattern of a dielectric lens antenna. The lens is illuminated by an equivalent far field source with an ideal cosine pattern. The lens structure is modelled using the ray launching geometrical optics (RL-GO). Compare the RL-GO solution with a hybrid FEM/MoM solution.
Windscreen Antenna on an Automobile
Calculate the input impedance of a windscreen antenna constructed from wires. The windscreen consists of a layer of glass and a layer of foil.
MIMO Elliptical Ring Antenna (Characteristic Modes)
Calculate the current distribution and far fields for a MIMO elliptical ring antenna. Use characteristic mode analysis to calculate the results for different modes.
Periodic Boundary Conditions for Array Analysis
Calculate the far field pattern for a single element in an infinite two-dimensional array of pin-fed patch elements. The infinite patch array is modelled using periodic boundary condition. Calculate the approximated far field pattern for a 10x10 element array.
Finite Antenna Array with Non-Linear Spacing
Calculate the radiation pattern for an array of arbitrarily placed pin-fed patch antennas. Use the finite array tool to construct the array and the numerical Green's function method (DGFM) to minimize computational resources.