Title :
Efficient Design of Horn Antennas by Hybridizing Mode Matching/FEM with MoM
Author :
Bertini, Stefano ; Monorchio, Agostino ; Bandinelli, Mauro
Author_Institution :
Pisa Univ., Pisa
Abstract :
A full wave hybrid numerical technique is presented for the analysis of horn antennas with general cross section interior taper and arbitrarily shaped outer surface. A mode matching (MM)/ edge based two-dimensional finite element (FE) method is employed for the generalized scattering matrix (GSM) of the stepped-waveguide model of the inner horn taper. The exterior problem is solved by employing a Method of Moments (MoM) procedure with Rao-Wilton-Glisson (RWG) basis functions, to evaluate the Generalized Scattering Matrix (GSM) of the radiating aperture. Inner and outer GSMs are therefore connected to obtain a full wave solution for the overall radiating structure.
Keywords :
S-matrix theory; finite element analysis; horn antennas; method of moments; mode matching; FEM; MoM; Rao-Wilton-Glisson basis functions; arbitrarily shaped outer surface; finite element method; general cross section interior taper; generalized scattering matrix; horn antennas; method of moments; mode matching; radiating structure; stepped-waveguide model; Apertures; Current density; Electromagnetic waveguides; Finite element methods; GSM; Horn antennas; Magnetic separation; Scattering; Surface waves; Transmission line matrix methods;
Conference_Titel :
Electromagnetics in Advanced Applications, 2007. ICEAA 2007. International Conference on
Conference_Location :
Torino
Print_ISBN :
978-1-4244-0767-5
Electronic_ISBN :
978-1-4244-0767-5
DOI :
10.1109/ICEAA.2007.4387442
