TRANSIENT RESPONSES OF COAXIAL CABLES IN AN ELECTRICALLY LARGE CABIN WITH SLOTS AND WINDOWS ILLUMINATED BY AN ELECTROMAGNETIC PULSE
Author(s) -
Jian Wang,
WenYan Yin,
Jinpeng Fang,
Qifeng Liu
Publication year - 2010
Publication title -
electromagnetic waves
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 89
eISSN - 1559-8985
pISSN - 1070-4698
DOI - 10.2528/pier10060708
Subject(s) - transient (computer programming) , electromagnetic pulse , coaxial , pulse (music) , coaxial cable , acoustics , electrical engineering , optics , physics , materials science , engineering , computer science , voltage , operating system , cable gland
An improved flnite-difierence time-domain (FDTD) method is proposed for predicting transient responses of coaxial cables which are placed in an electrically large metallic cabin with arbitrary slots and circular windows on its wall. By integrating nodal analysis, multi-conductor transmission line (MTL) equation and FDTD method, we are able to accurately capture electromagnetic interference (EMI) efiects on the cables. Our developed algorithm is verifled by calculat- ing frequency-dependent transfer impedance of coaxial cables together with induced currents. Numerical calculations are further performed to show the near-end coupled current responses of braided and tubular cables, respectively, and the efiects of incident directions and polar- izations of the illuminated electromagnetic pulse are both taken into account.
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