Title :
The prolate and oblate spheroid perfectly matched layers
Author :
Xiao, Ying ; Lu, Yilong
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
fDate :
3/1/2002 12:00:00 AM
Abstract :
A set of flexible prolate and oblate spheroid perfectly matched layers (PMLs) is presented for more effective finite element solution of three-dimensional unbounded problems of certain geometries. The main advantage of the spheroid PMLs is that they can be easily adjusted to adapt to long or flat geometries and reduce the buffer region between a scatterer and the PML so as to increase the computational efficiency. In addition, the spheroid PMLs avoid the corner problem encountered by planar PMLs. The proposed spheroid PMLs are very suitable for FEM-PML analysis of long or flat objects
Keywords :
electromagnetic field theory; electromagnetic wave scattering; finite element analysis; 3D unbounded problems; FEM-PML analysis; PMLs; buffer region; computational efficiency; corner problem; finite element solution; flat geometries; flat objects; flexible oblate spheroid perfectly matched layers; flexible prolate spheroid perfectly matched layers; long geometries; long objects; oblate spheroid perfectly matched layers; planar PMLs; prolate spheroid perfectly matched layers; scatterer; scattering; spheroid PMLs; Boundary conditions; Finite difference methods; Finite element methods; Frequency; Geometry; Maxwell equations; Perfectly matched layers; Reflection; Scattering; Time domain analysis;
Journal_Title :
Magnetics, IEEE Transactions on
