Title :
The wave-envelope method and absorbing boundary conditions
Author :
Choi, C.T.M. ; Webb, J.P.
Author_Institution :
Dept. of Electr. Eng., McGill Univ., Montreal, Que., Canada
fDate :
3/1/1997 12:00:00 AM
Abstract :
An absorbing boundary condition (ABC) is an effective way to truncate the domain of an unbounded electromagnetic scattering problem, to allow it to be solved by the finite element method. However, the boundary on which the ABC is imposed must be separated from the scatterer by a thick layer of space, which can be expensive to model with conventional finite elements. The wave-envelope (WE) method is used to model the layer of space much more cheaply. The results demonstrate the accuracy and efficiency of this approach
Keywords :
electromagnetic wave scattering; finite element analysis; EM radiation; absorbing boundary conditions; accuracy; efficiency; finite element method; free space region model; unbounded electromagnetic scattering problem; wave-envelope method; Acoustic scattering; Boundary conditions; Electromagnetic analysis; Electromagnetic radiation; Electromagnetic scattering; Equations; Finite element methods; Laboratories; Radar cross section; Radar scattering;
Journal_Title :
Magnetics, IEEE Transactions on
