Title :
On the development of a higher-order PML
Author :
Correia, Davi ; Jin, Jian-Ming
Author_Institution :
Dept. of Comput. & Electr. Eng., Univ. of Illinois, Urbana, IL, USA
Abstract :
A higher-order perfectly matched layer (PML) is proposed based on stretched coordinates to effectively attenuate both propagating and evanescent waves. The new PML has multiple poles in contrast to the regular PML with a single pole. The implementation is also derived and results are shown to be better than those of the regular PML and the recently proposed complex-frequency shifted (CFS) PML with an insignificant increase in the computational cost.
Keywords :
computational electromagnetics; electromagnetic wave absorption; electromagnetic wave propagation; electromagnetic wave scattering; finite difference time-domain analysis; higher order statistics; CFS; FDTD; PML; attenuation; complex-frequency shift; computational electromagnetics; evanescent wave; finite difference time domain method; higher-order perfectly matched layer; numerical analysis; stretched coordinate; wave propagation; Absorption; Computational efficiency; Electromagnetics; Equations; Finite difference methods; Helium; Numerical analysis; Perfectly matched layers; Reflection; Time domain analysis; Computational electromagnetics; finite difference time domain (FDTD) method; numerical analysis; perfectly matched layers (PMLs);
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2005.859901
