Nowadays 3D electromagnetic (EM) simulators based on different numerical techniques such as the finite element method (FEM), the method of moments (MOM), the finite-difference time-domain technique (FDTD), the transmission-line matrix method (TLM), or the finite integration technique (FIT) are available for the analysis of a wide variety of electromagnetic problems. In this project, in accordance with the IEEE Recommended Practice for Validation of Computational Electromagnetics Computer Modeling and Simulations canonical problems such as a thin dipole antenna, a circular loop antenna, and a rectangular cavity with two apertures are considered using two commercial programs (based on FEM and FIT) and the code CONCEPT-II developed by the Institut für Theoretische Elektrotechnik using MOM. In addition a fourth example, which is not mentioned in the standard yet, has been created including a thick monopole antenna on a finite conducting plate. The key point is to find out how different method perform when applied to the example structures. This page provides the necessary information, i.e., geometrical data, meshes in STL format and results, for example input impedance or return loss (S11) as a function of frequency, far-field and near field data which may serve as a reference. Readers which are interested in numerical techniques and want to validate there own code or test codes that are available to them, find a useful source of information here. All reference results were computed with CONCEPT-II.
Benchmark 1: Thin Dipole Antenna
The dipole antenna is a simple antenna, see Fig. 1, and well-known and described in the literature. Two different models are considered here. The first one is a triangulated patch model comprising two long cylinders of small radii connected by a short wire forming the feed region. For comparison a pure thin-wire model has been investigated leading to a much smaller number of unknowns but providing quite the same results as can be observed in Fig. 2.