conference paper
Equivalence and optimization of absorbing boundary conditions
Weiliang Yuana b, Qinxi Chua c, Changhong Lianga c
- aDepartment of Microwave Communication Engn, Xidian University, Xi'an, Shaanxi, China
- bDept. of Microwave Commun. Eng., Xidian Univ., Xi'an, China
- c[Department of Microwave Communication Engn, Xidian University, Xi'an, Shaanxi, China]
International Conference on Mathematical Methods in Electromagnetic Theory2002-11-27 0 citations7 references
Looking for the full paper…
Papers open inside SciRah from the original publisher or repository; SciRah never hosts them.
Abstract
Four types of absorbing boundary conditions (ABC) widely used in finite-difference time-domain (FDTD) simulations are discussed from the point of view of their equivalence. They include Mur's (1981) ABC, dispersive ABC, Liao's (1986) ABC and Higdon's (1986) operator, and an analytical expression of Liao's ABC is given. These ABCs are essentially equivalent and can be embodied by an analytical equation with variable factors. The absorbing performance of this equation is optimized through the appropriate choice of those factors.