Title :
Unconditionally stable FDTD formulation with UPML-ABC
Author :
Ding, Ping-Ping ; Wang, Gaofeng ; Lin, Hai ; Wang, Bing-Zhong
Author_Institution :
Acad. of Microelectron. & Inf. Technol., Wuhan Univ., China
fDate :
4/1/2006 12:00:00 AM
Abstract :
A new unconditionally stable finite-difference time-domain (US-FDTD) formulation is established in combination with the uniaxial anisotropic perfectly matched layer absorbing boundary condition. This approach exhibits improved absorbing performance yet maintains unconditional stability. Numerical results show that the reflection error of this scheme is limited even when the time-step size is beyond the Courantndash;Friedrichndash;Levy stability bound, and the absorbing performance is better than that of the US-FDTD with the dispersive boundary condition.
Keywords :
Maxwell equations; absorbing media; electromagnetic wave absorption; finite difference time-domain analysis; method of moments; numerical stability; Courant-Friedrich-Levy stability bound; MOM; UPML; UPML-ABC; US-FDTD; dispersive boundary condition; method of moments; numerical analysis; reflection error; unconditional stability; unconditionally stable finite-difference time-domain method; uniaxial anisotropic perfectly matched layer; Anisotropic magnetoresistance; Boundary conditions; Dispersion; Finite difference methods; Message-oriented middleware; Perfectly matched layers; Physics; Reflection; Stability; Time domain analysis; Method of moments (MOM); unconditionally stable finite-difference time-domain (US-FDTD); uniaxial anisotropic perfectly matched layer (UPML);
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2006.872147
