NUMERICAL ERRORS IN THE COMPUTATION OF IMPEDANCES BY FDTD METHOD AND WAYS TO ELIMINATE THEM - COMMENT Academic Article

abstract

• For original paper, see Fang and Xue, ibid., vol. 5, no. 1, pp. 6-8 (Jan. 1995). The original paper presents a new formula for the calculation of the characteristic impedance of transmission lines, Z/sub 0/, using the FDTD method. This formula eliminates the numerical errors due to the offset of voltages and currents in space and time. The commenters recalculate the two examples given and confirm the presented results. However, they point out that using the exact formula for the characteristic impedance yields a value of Z/sub 0/ = 50.2 /spl Omega/ for the stripline investigated. In response to the comments, the original authors analyze the variation of the numerical error with respect to the space step.<>

authors

• Katehi, Linda

published proceedings

• IEEE MICROWAVE AND GUIDED WAVE LETTERS

author list (cited authors)

• DIB, N., KRUMPHOLZ, M., TENTZERIS, E., & KATEHI, L.

citation count

• 3

complete list of authors

• DIB, N||KRUMPHOLZ, M||TENTZERIS, E||KATEHI, LPB

publication date

• October 1995

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• IEEE Microwave and Wireless Components Letters  Journal

keywords

• Characteristic Impedance
• Distributed Parameter Circuits
• Electric Impedance
• Error Analysis
• Fdtd Method
• Finite Difference Methods
• Finite Difference Time-domain Analysis
• Fourier Transforms
• Frequency
• Impedance
• Microwave Integrated Circuits
• Numerical Errors
• Space Step
• Strip Lines
• Stripline
• Transmission Line Theory
• Transmission Lines
• Virtual Colonoscopy
• Voltage

Digital Object Identifier (DOI)

• 10.1109/75.465038

start page

• 354

end page

• 355

volume

• 5

issue

• 10

URL

• http://dx.doi.org/10.1109/75.465038