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http://dx.doi.org/10.6109/jkiice.2007.11.6.1054

Comparisons between UPML and Liao's ABC in the FDTD method for 2D Cylindrical Coordinates  

Hong, Ic-Pyo (공주대학교 정보통신공학부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.11, no.6, 2007 , pp. 1054-1061 More about this Journal
Abstract
In this paper, the comparison between UPML and Liao's absorbing boundary condition in the FDTD(Finite-Difference Time-Domain) method was performed for the analysis of the 2D cylindrical coordinate system. Generally, it is known as the absorbing characteristics of the UPML is bro than Liao's absorbing boundary condition in the 2D rectangular coordinate. The simulation results in this paper showed that Liao's original absorbing boundary condition is better than other two absorbing boundary conditions, Liao's modified condition and UPML. We concluded that more numerical, theoretical studies, simulations and verifications for various absorbing boundary conditions will be needed to get more accurate results for the design of useful 2D cylindrical microwave circuits.
Keywords
UPML;
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