Generalized-Multipole-Technique - Mode-Matching-Technique Hybrid Method for Elliptical Stepped Horn Antennas Analysis

Analysis of elliptical structures with constant axial ratio by Body-of-Revolution Finite Element Method and Transformation Optics

“…In particular, horns are still rather demanding in terms of computer resources, because of the rather large size in terms of wavelength and because of the need to account for the outer boundaries. Various methods have been used for the analysis of elliptical horns, but they are all fully 3D [15,16]. In these structures, the advantage of BoR-FEM, i.e.…”

Generalized multipole technique without redundant multipoles

“…The two approaches have been compared in this work by considering the case of elliptical aperture horn antennas [10]. The paper is organized as follows: in Section 2 we briefly recall the hybrid modal-GMT technique used for the analysis of horn antennas.…”

“…When using GMT, approximations like infinitely extended conducting ground plane or absorbing boundaries are not required for the characterization of the radiating apertures. When considering also the internal part of the horn, the modal scattering matrix can be computed by combining a modal expansion for the aperture field and a multiple multipole expansion for the external field along with a point matching technique [9,10].…”