Title :
Conformal absorbing boundary conditions for 3-D problems: derivation and applications
Author :
Chatterjee, Arindam ; Volakis, John L.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
fDate :
8/1/1995 12:00:00 AM
Abstract :
Vector absorbing boundary conditions (ABCs) for doubly curved surfaces are presented, and their applicability to finite elements for scattering calculations are discussed. A performance study of these ABCs is carried out in terms of accuracy and computational requirement, and scattering patterns for several targets are included for validation purposes. It is found that accurate far-field results can be obtained by terminating the finite element mesh a fraction of a wavelength from the scattering structure
Keywords :
electromagnetic wave absorption; electromagnetic wave scattering; mesh generation; 3D problems; accuracy; computational requirement; conformal absorbing boundary conditions; doubly curved surfaces; far-field results; finite element mesh; finite elements; performance study; scattering; scattering pattern; vector absorbing boundary conditions; Boundary conditions; Costs; Electromagnetic scattering; Finite element methods; Geometrical optics; Geometry; Optical scattering; Optical surface waves; Senior members; Shape;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
