Title :
Numerical errors in the computation of impedances by the FDTD method and ways to eliminate them
Author :
Fang, Jiayuan ; Xeu, Danwei
Author_Institution :
Dept. of Electr. Eng., State Univ. of New York, Binghamton, NY, USA
fDate :
1/1/1995 12:00:00 AM
Abstract :
This paper presents numerical errors in the computation of impedances by the FDTD method. As shown by examples in the paper, substantial numerical errors can be introduced due to the spatial and time offsets of voltages and currents calculated from corresponding field variables in FDTD computations. An impedance calculation formula that completely eliminates such errors is also presented
Keywords :
electric impedance; error analysis; finite difference time-domain analysis; FDTD computations; currents; field variables; impedance calculation; numerical errors; spatial offsets; time offsets; voltages; Coaxial components; Conductors; Finite difference methods; Frequency domain analysis; Helium; Impedance; Integrated circuit modeling; Magnetic fields; Time domain analysis; Voltage;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
