There are a lot of techniques for simulation of antennas in free-space. However, in practice, antennas are mounted on physical structures that subsequently may significantly change radiation characteristics. Measurements of an antenna which is installed on a large platform (in means of wavelength), such as a ship or aircraft or inside a small structure, such as a mobile phone, could be difficult to perform. Therefore, exists a task to accurately simulate the interaction of an antenna with surround environment.
EM Infinity provides analysis of the optimal antenna placement:
- Near field
- Far field installed radiation patterns
- Mutual coupling
- Induced voltage
- Optimization of antenna installation on different platforms, such as vehicles, ships and aircrafts
For antennas placement analysis, we are using ANSYS HFSS and ANSYS HFSS SBR+ (Savant). The simulation methods which are used:
- For small/medium problems (in means of wavelengths) we use accurate numerical methods
- Finite Element Method (FEM), including the domain decomposition method, done in HFSS
- Method of Moments (MoM), done in HFSS-IE
- Finite Element Boundary Integral (FEBI) approach, done in HFSS
- For large problems, we use high-frequency approximation methods, such as
- Physical Optics (PO), for metals and dielectric materials, done in HFSS
- Shooting and Bouncing Rays (SBR) with simultaneously consistent implementations of Physical Theory of Diffraction (PTD), Uniform Theory of Diffraction (UTD), and Creeping Waves, done in SAVANT / HFSS SBR+