Abstract
A recommended practice for computational electromagnetics (CEM) applied to the modeling and simulation of antennas (IEEE P2816) is currently being developed by the IEEE Antennas and Propagation Standards Committee (APS/SC). Four commonly adopted CEM solvers to simulate antenna problems are considered in this document: integral equations and method of moments (MoM), finite element method (FEM), finite difference time domain (FDTD) method and transmission line matrix (TLM) method. A broadband biconical antenna was also proposed and included as a benchmark problem that was tackled as an international interlaboratory comparison with twenty sets of results obtained using the different solvers. Overall a good agreement was observed with some deviating results, especially at the lower end of the frequency band. Herein this biconical antenna is numerically analyzed and the results compared with the analytical solution in an aim to explain the deviating results.
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