CAD of axisymmetric antennas through finite element and global optimiser

This paper addresses the analysis and design of axisymmetric horn antennas with arbitrary shape. The horns can be empty or loaded with one or more dielectric materials. These materials can even be uniaxially anisotropic ones. Corrugated horns can also be studied. The analysis method based on a Segmentation technique, the Finite-Element and a Matrix Lanczos-Padÿ algorithm (SFELP) efficiently finds the radiation patterns, the directivity and the return losses. This efficiency allows the use of this technique in connection with a Simulated Annealing algorithm adapted to electromagnetic problems.