Title :
Combination of PML and ABC for scattering problem
Author :
Xiao, Ying ; Lu, Yilong
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
fDate :
9/1/2001 12:00:00 AM
Abstract :
Being artificial boundary conditions, perfectly matched layer (PML) and absorbing boundary condition (ABC) have their own advantages and disadvantages, respectively. In this paper, we present a general formulation of combining curvilinear PMLs and conformal ABCs for the finite element analysis of electromagnetic scattering problems. The combination of PMLs and ABCs exploits their advantages and eliminates their disadvantages so as to decrease the number of unknowns and increase the computational efficiency without sacrificing the accuracy of solutions. Numerical examples are given to demonstrate the effectiveness of the proposed approach
Keywords :
circuit complexity; electrical engineering computing; electromagnetic wave scattering; finite element analysis; ABC; PML; artificial boundary conditions; computational efficiency; conformal absorbing boundary condition; curvilinear perfectly matched layer; effectiveness; electromagnetic scattering; finite element analysis; scattering; Boundary conditions; Computational efficiency; Electromagnetic analysis; Electromagnetic propagation; Electromagnetic radiation; Electromagnetic scattering; Finite difference methods; Finite element methods; Perfectly matched layers; Reflection;
Journal_Title :
Magnetics, IEEE Transactions on
