Title :
Finite-element approximation of electromagnetic diffraction by arbitrarily shaped surfaces
Author :
Bendali, A. ; Clair, D. ; Tourneur, J.
Author_Institution :
Ecole Polytechnique, Centre de Mathématiques Appliquées, Palaiseau, France
Abstract :
A general finite-element method is applied to compute the skin current of a perfectly conducting surface illuminated by an incident electromagnetic wave. Surface charges over any element and currents flowing through any edge are approximated by polynomials of degree m. Some radiation patterns of two horns are calculated and compared with those obtained from experiment.
Keywords :
antenna radiation patterns; antenna theory; electromagnetic wave diffraction; finite element analysis; EM wave diffraction; arbitrarily shaped surfaces; electromagnetic diffraction; finite-element method; horn antenna; horns; perfectly conducting surface; radiation patterns; skin current;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19820437
