Analysis for shielding effect of metal plate with apertures with FDTD

Author

Feiyan, Lv ; Fei, Sha

Author_Institution

Electromagn. Compatibility Lab., Northern Jiaotong Univ., Beijing, China

fYear

2002

fDate

21-24 May 2002

Firstpage

739

Lastpage

743

Abstract

Aperture arrays for airflow in an enclosure can become the coupling path of electromagnetic interference (EMI) from the interior to the external environment. The FDTD (finite-difference time-domain) is a versatile computation technique for simulation of electromagnetic radiation in EMC analysis. Herein, the FDTD is applied to investigate the shielding effect (SE) of a metal plate with aperture arrays. The factors such as the size and shape of aperture, sum of apertures, the thickness of the metal plate are studied to see how they act on the SE. The numerical results and the measurement agree well. Some of the empirical conclusion will benefit the practical design.

Keywords

electromagnetic interference; electromagnetic shielding; finite difference time-domain analysis; EMC analysis; EMI coupling path; FDTD; airflow; aperture arrays; aperture shape; aperture size; apertures; electromagnetic interference; electromagnetic radiation simulation; enclosure; finite-difference time-domain; metal plate thickness; shielding effect; simulation results; Analytical models; Apertures; Computational modeling; Electromagnetic compatibility; Electromagnetic coupling; Electromagnetic interference; Electromagnetic radiation; Finite difference methods; Shape measurement; Time domain 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.2002.1177536

Filename

1177536