Transient Responses of Coaxial Cables in an Electrically Large Cabin with Slots and Windows Illuminated by an Electromagnetic Pulse

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.

[1]  G. T. Hawley,et al.  A Model for Currents and Voltages Induced Within Long Transmission Cables by an Electromagnetic Wave , 1971 .

[2]  P. J. Papakanellos,et al.  Probabilistic Response of a Transmission Line in a Dissipative Medium Excited By an Oblique Plane Wave - Abstract , 2001 .

[3]  D. J. Riley,et al.  Hybrid thin-slot algorithm for the analysis of narrow apertures in finite-difference time-domain calculations , 1990 .

[4]  X. Ferrieres,et al.  Application of a hybrid finite difference/finite volume method to solve an automotive EMC problem , 2004, IEEE Transactions on Electromagnetic Compatibility.

[5]  Xiao-Juan Hu,et al.  STUDY ON CONFORMAL FDTD FOR ELECTROMAGNETIC SCATTERING BY TARGETS WITH THIN COATING , 2008 .

[6]  Edward Vance,et al.  Shielding Effectiveness of Braided-Wire Shields , 1975, IEEE Transactions on Electromagnetic Compatibility.

[7]  M. Camp,et al.  Predicting the breakdown behavior of microcontrollers under EMP/UWB impact using a statistical analysis , 2004, IEEE Transactions on Electromagnetic Compatibility.

[8]  R. Mittra,et al.  A locally conformal finite-difference time-domain (FDTD) algorithm for modeling three-dimensional perfectly conducting objects , 1997 .

[9]  Ming-Feng Xue,et al.  Shielding Characterization of Metallic Enclosures With Multiple Slots and a Thin-Wire Antenna Loaded: Multiple Oblique EMP Incidences With Arbitrary Polarizations , 2009, IEEE Transactions on Electromagnetic Compatibility.

[10]  Christos N. Capsalis,et al.  Validation of a Modified FDTD Method on Non-Uniform Transmission Lines , 2001 .

[11]  Jian-Ming Jin,et al.  Fast and Rigorous Analysis of EMC/EMI Phenomena on Electrically Large and Complex Cable-Loaded Structures , 2007, IEEE Transactions on Electromagnetic Compatibility.

[12]  Qing Huo Liu,et al.  Time-Domain Investigation on Cable-Induced Transient Coupling Into Metallic Enclosures , 2009, IEEE Transactions on Electromagnetic Compatibility.

[13]  S. Sali,et al.  An improved model for the transfer impedance calculations of braided coaxial cables , 1991 .

[14]  Haiyan Xie,et al.  STUDY OF LOSS EFFECT OF TRANSMISSION LINES AND VALIDITY OF A SPICE MODEL IN ELECTROMAGNETIC TOPOLOGY , 2009 .

[15]  S. Helmers,et al.  On the contribution of transfer admittance to external field coupling into shielded cables , 1999, 1999 IEEE International Symposium on Electromagnetic Compatability. Symposium Record (Cat. No.99CH36261).

[16]  ELECTROMAGNETIC COUPLING TO CIRCULANT SYMMETRIC MULTI-CONDUCTOR MICROSTRIP LINE , 2004 .

[17]  S. Yokoyama,et al.  Thin Wire Representation in Finite Difference Time Domain Surge Simulation , 2002, IEEE Power Engineering Review.

[18]  Ilja Belov,et al.  Electromagnetic Coupling to a Wearable Application Based on Coaxial Cable Architecture , 2006 .

[19]  Mohammad Khalaj-Amirhosseini.  Analysis of Nonuniform Transmission Lines Using the Equivalent Sources , 2007 .

[20]  R.G. Jobava,et al.  Complex approaches for the calculation of EMC problems of large systems , 2004, 2004 International Symposium on Electromagnetic Compatibility (IEEE Cat. No.04CH37559).

[21]  J.L. Volakis,et al.  A generalized MoM-SPICE iterative technique for field coupling to multiconductor transmission lines in presence of complex structures , 2005, IEEE Transactions on Electromagnetic Compatibility.