Innovative absorbing-boundary conditions for the efficient FDTD analysis of transient EMP interaction problems

Author

Hongxing, ZHENG

Author_Institution

Dept. of Telecommun. Eng., Civil Aviation Univ. of China, Tianjin, China

fYear

2002

fDate

21-24 May 2002

Firstpage

238

Lastpage

241

Abstract

The paper deals with a modified version of the Fang-Mei´s super-absorption algorithm for the truncation of three-dimensional finite-difference time-domain (FDTD) meshes combined with an innovative low pass filtered algorithm to assure numerical stability of the FDTD procedure for late time. The proposed method is usually applied to analysis of slow-decaying transient problems, such as the lightning or nuclear electromagnetic pulse interaction with a cable or complex structures. Numerical results demonstrate the efficiency of the proposed method.

Keywords

FIR filters; electromagnetic pulse; filtering theory; finite difference time-domain analysis; numerical stability; transient analysis; FDTD mesh truncation; FDTD procedure; FIR filter; NEMP; absorbing-boundary conditions; cables; complex structures; digital filtering technique; low pass filtered algorithm; nuclear electromagnetic pulse; numerical stability; slow-decaying transient problems; super-absorption algorithm; transient EMP interaction problems; transient analysis; Boundary conditions; EMP radiation effects; Electromagnetic analysis; Electromagnetic transients; Finite difference methods; Finite impulse response filter; Lightning; Numerical stability; Time domain analysis; Transient analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2002 3rd International Symposium on

Print_ISBN

0-7803-7277-8

Type

conf

DOI

10.1109/ELMAGC.2002.1177414

Filename

1177414