Title :
A comparison of incorporation of dissipation in the FDTD analysis of transmission lines using stability analysis
Author :
Fukatsu, Satoshi ; Sekine, Toshikazu ; Takahashi, Yasuhiro
Author_Institution :
Grad. Sch. of Eng., Gifu Univ., Gifu, Japan
Abstract :
A comparison of incorporation schemes of dissipation in the FDTD analysis of transmission lines using stability analysis is described. In the leapfrog type FDTD method, the calculation points of the voltage and the current are different in the time space. Therefore, how dissipation is included in the update equation becomes a problem. We find that incorporation of dissipation by using average value is more stable and lower numerical dispersion than that of Yee when discretization interval is large. Oppositely, Yee´s scheme is more accurate in case of discretization interval is small. This is confirmed from the accuracy in numerical analysis of pulse responses.
Keywords :
finite difference time-domain analysis; numerical stability; transmission lines; FDTD analysis; incorporation of dissipation; numerical dispersion; stability analysis; transmission lines; Circuit synthesis; Distributed parameter circuits; Equations; Finite difference methods; Integrated circuit interconnections; Numerical analysis; Stability analysis; Time domain analysis; Transmission lines; Voltage;
Conference_Titel :
Environmental Electromagnetics, 2009. CEEM 2009. 5th Asia-Pacific Conference on
Conference_Location :
Xian
Print_ISBN :
978-1-4244-4344-4
DOI :
10.1109/CEEM.2009.5304442
