Title :
Antennas Analysis using Edge Elements and Spherical Modes Expansion
Author :
Richalot, E. ; Wong, M.F. ; Fouad-Hanna, V. ; Baudrand, H.
Author_Institution :
France Télécom CNET DMR/RMC, 38-40 rue du général Leclerc, 92794 Issy-les- Moulineaux cedex 9, France. Tel. :+33 01 45 29 47 71 Fax :+33 01 45 29 41 94, richalot@issy.cnet.fr
Abstract :
We present here a rigorous method for analysing antennas, using the finite element method inside a sphere and an expansion of fields in spherical harmonics in the exterior domain. The studied structure, represented as a multipole, can be entirely deternined by its scattering matrix at the interfaces. The radiating pattern and input impedances obtained for an axisymmetric feedhorn and for a microstrip antenna are presented and compared to those obtained with other methods.
Keywords :
Antenna feeds; Dielectric losses; Finite element methods; Geometry; Harmonic analysis; Impedance; Matrix converters; Scattering; Sparse matrices; Transmission line matrix methods;
Conference_Titel :
Microwave Conference, 1997. 27th European
Conference_Location :
Jerusalem, Israel
DOI :
10.1109/EUMA.1997.337851
