|
|
Article: Reports from University of Tsukuba describe recent advances in computational electromagnetics.
- Article from:
- Electronics Newsweekly
- Article date:
- November 11, 2009
CopyrightCOPYRIGHT 2009 NewsRX. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
|
According to recent research published in the Applied Computational Electromagnetics Society Journal, "It is often necessary to terminate the computational domain of an FDTD calculation with an absorbing boundary condition (ABC). The Perfectly Matched Layer (PML) is an excellent ABC, but it is complicated and costly."
"Typically at least 8 layers are needed to give satisfactory absorption. Thus in a 100(3) domain less than 84(3) or 59% of the grid points are usable. The second-order Mur ABC requires just 2 layers, but its absorption is inadequate for many problems," wrote J.B. Cole and colleagues, University of Tsukuba.
The researchers concluded: "In ...