Title :
Time domain analysis to scattering field of large EMC chamber
Author :
Baodong, Bai ; Dexin, Xie ; Yingying, Yao ; Linsuo, Zeng
Author_Institution :
Shenyang Univ. of Technol., China
Abstract :
This paper presents a time domain analysis of the finite difference time domain method (FDTD) on the scattering characteristic of a large chamber which has 36 m×26 m×17 m dimensions with Fourier and wavelet transforms. In order to predict the time-frequency characteristics of the EMC chamber designed, a modified FDTD method including the lossy materials has been used to compute the scattering field of the chamber. Based on the mathematic transform techniques, a new FDTD formula has been obtained for the frequency dependent materials, the absorbers in chamber. With the computer code in this paper, the time domain characteristics of an EMC chamber have been researched for different excitation sources. The research in this paper shows the advantages of the FDTD in electromagnetic field computation, especially in EMC problems
Keywords :
Fourier transforms; anechoic chambers (electromagnetic); electromagnetic compatibility; electromagnetic fields; electromagnetic wave scattering; finite difference time-domain analysis; wavelet transforms; 17 m; 26 m; 36 m; Fourier transforms; absorbers; computer code; electromagnetic field computation; finite difference time domain method; frequency dependent materials; large EMC chamber; lossy materials; scattering field time domain analysis; time-frequency characteristics; wavelet transforms; Electromagnetic compatibility; Electromagnetic scattering; Finite difference methods; Fourier transforms; Mathematics; Time domain analysis; Time frequency analysis; Wavelet analysis; Wavelet domain; Wavelet transforms;
Conference_Titel :
Electrical Machines and Systems, 2001. ICEMS 2001. Proceedings of the Fifth International Conference on
Conference_Location :
Shenyang
Print_ISBN :
7-5062-5115-9
DOI :
10.1109/ICEMS.2001.971892
