Numerical Methods
- Numerical Methods
-
Hybridisation expands the range of applications, allowing the solution of problems which would be intractable with any individual method. All together, these methods allow the user to solve a diverse set of problems. Below, the EM simulation map is shown. It is a graphic illustration of the relative ranges of applicability of the various methods.
- Method of
Moments (MoM)
Ideal for radiation and coupling analysis
- Physical Optics
(PO)
Ideal for electrically very large radiation and scattering analysis
- Multi-level
Fast Multipole Method (MLFMM)
Ideal for electrically large, full-wave analysis
- Geometrical
Optics (GO)
Ideal for dielectric or metal, electrically very large scattering analysis
- Finite Element
Method (FEM)
Ideal for problems with several dielectrics and waveguides
- Uniform Theory
of Diffraction (UTD)
Ideal for electrically extremely large, PEC structures
- Method of
Moments (MoM)
- Applications and Solution Method Selection Table
-
Applications and Solution Method Selection Table
This table is a guide to the suitability of different electromagnetic solution methods, available in FEKO for different applications. Choosing an appropriate method is dictated by various considerations such as electrical size of the problem, geometrical complexity, available computational resources, etc.
Applicability scale:
Technique
is ideally suited to the problem.
Technique could be used but there is normally a better alternative,
depending on the specific problem.Geometrically complex Electrically large MoM FEM,
FEM-MoMMLFMM FEM-MLFMM PO, GO,
MoM-PO, MoM-GOUTD,
MoM-UTDWire antennas Microstrip antennas Aperture antennas Reflector antennas Windscreen antennas Conformal antennas Broadband antennas Array antennas Lens antennas Antenna placement (radiation pattern) Antenna placement (coupling) SAR (Bio-EM) RADHAZ zones Periodic structures: FSS, metamaterials Scattering with plane wave source (RCS) Scattering with localised source EMC/EMI shielding and coupling Propagation environment Cable bundle coupling Waveguide components Connectors Radomes Microstrip circuits
