A Digital Filtering Method to Process the Convolution in FDTD Analysis of Transmission Line Equations

Author

Zhou, Ying-Hui ; Shi, Li-Hua ; Gao, Cheng ; Zhou, Bi-Hua ; Chen, Bin

Author_Institution

Lab. of Electromagn., Nanjing Eng. Inst.

fYear

2006

fDate

1-4 Aug. 2006

Firstpage

732

Lastpage

735

Abstract

Aimed to solve the time-domain convolution in the analysis of transmission line coupling problems, a digital filtering method is proposed to be used in the one-dimensional FDTD computations. Discrete transfer function that represents features of ground impedance is applied to simplify the convolution. Examples demonstrate that the method is effective when the conductivity of the soil is between 10^-2S/m and 10_-4S/m . Algorithms for the combination of digital filtering with FDTD are presented. This digital filtering method can save both the computation time and reduce the memory cost in calculation

Keywords

coupled transmission lines; digital filters; finite difference time-domain analysis; transmission line theory; FDTD analysis; digital filtering method; discrete transfer function; ground impedance; time-domain convolution; transmission line coupling problems; transmission line equations; Convolution; Couplings; Digital filters; Equations; Filtering; Finite difference methods; Impedance; Time domain analysis; Transfer functions; Transmission lines; FDTD; coupling analysis; digital filter; transmission line equations;

fLanguage

English

Publisher

ieee

Conference_Titel

Environmental Electromagnetics, The 2006 4th Asia-Pacific Conference on

Conference_Location

Dalian

Print_ISBN

1-4244-0183-6

Type

conf

DOI

10.1109/CEEM.2006.258058

Filename

4027390