Title :
The modal expansion ABC and its comparison with the Bayliss-Turkel ABC [EM scattering]
Author :
Li, Y. ; Cendes, Z.J.
Author_Institution :
Dept. of Electr. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA
fDate :
June 28 1993-July 2 1993
Abstract :
A new local ABC (absorbing boundary condition) is derived using modal expansion basis functions. These basis functions are the heart of the transfinite element method. They provide better results than the Bayliss-Turkel ABC when the boundary is close to the scatterer. Also, the final matrices that they generate are symmetric and the boundary conditions may be applied to both circular and noncircular boundaries. Numerical results are presented.<>
Keywords :
boundary-value problems; electromagnetic wave scattering; finite element analysis; Bayliss-Turkel ABC; absorbing boundary condition; electromagnetic scattering; matrices; modal expansion basis functions; transfinite element method; Boundary conditions; Conductors; Finite difference methods; Finite element methods; Frequency; Heart; Partial differential equations; Reflection; Scattering; Symmetric matrices;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
Conference_Location :
Ann Arbor, MI, USA
Print_ISBN :
0-7803-1246-5
DOI :
10.1109/APS.1993.385345
