Title :
An iterative solution to scattering from cavity-backed apertures in a perfectly conducting wedge
Author :
Alfonzetti, S. ; Borzi, G. ; Salerno, N.
Author_Institution :
Dipt. di Elettrico Elettronico e Sistemistico, Catania Univ., Italy
fDate :
9/1/1998 12:00:00 AM
Abstract :
In this paper it is shown how the Robin iteration procedure, already proposed by the authors for the solution of electromagnetic scattering problems, can be easily adapted to scattering from cavities embedded in a perfectly-conducting wedge. The procedure couples a differential equation for the interior problem with an integral equation for the exterior one. A suitable choice of the Robin (mixed) boundary condition on the fictitious boundary dividing the interior and exterior domains avoids resonances
Keywords :
Green´s function methods; convergence of numerical methods; electromagnetic wave scattering; finite element analysis; iterative methods; Robin iteration procedure; cavity-backed aperture; differential equation; electromagnetic scattering; finite element method; integral equation; mixed boundary condition; perfectly conducting wedge; Apertures; Boundary conditions; Dielectrics; Differential equations; Electromagnetic scattering; Finite element methods; Integral equations; Permeability; Permittivity; Symmetric matrices;
Journal_Title :
Magnetics, IEEE Transactions on
