Accurate Evaluation of Field Interactions Between Cable Harness and Vehicle Body by a Multiple Scattering Method

Interactions between cable harness and vehicle body can be calculated using the full-wave method-of-moments (MoM) formulation. Although the full-wave MoM formulation can help us to calculate these interactions with great accuracy, it can be fairly time consuming when dealing with complex wire structures. On the other hand, the conventional multiconductor transmission-line theory can be used to obtain a simple model of the interactions, but only the effect of the transmission-line (TL)-mode current can be accounted for in this method. Starting with the complete electrical field integral equations, the current on a two-conductor thin wire structure due to incident field illumination can be decomposed into TL and antenna modes. Both modes can be solved using a SPICE solver in the form of Telegrapher's equations. A proposed multiple scattering (MS) method based on a hybrid of TL and surface MoM can then be used to calculate interactions between thin wire structures, such as cable harness, and conductive surfaces, such as vehicle body. A test case shows that wire current computation using the proposed MS method takes less time but reaches the same accuracy compared to the full-wave MoM.

[1]  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.

[2]  M. Ianoz,et al.  Electromagnetic field coupling to a line of finite length: theory and fast iterative solutions in frequency and time domains , 1995 .

[3]  W. Marsden.  I and J , 2012 .

[4]  A. Orlandi,et al.  Feature selective validation (FSV) for validation of computational electromagnetics (CEM). part II- assessment of FSV performance , 2006, IEEE Transactions on Electromagnetic Compatibility.

[5]  Heyno Garbe,et al.  Radiation analysis of PCB layout using a hybrid MoM-MTL method , 2003 .

[6]  A. Orlandi,et al.  Feature selective validation (FSV) for validation of computational electromagnetics (CEM). part I-the FSV method , 2006, IEEE Transactions on Electromagnetic Compatibility.

[7]  T. Sarkar,et al.  Analysis of Multiconductor Transmission Lines , 1988, 31st ARFTG Conference Digest.

[8]  F. Rachidi,et al.  On the Evaluation of Antenna-Mode Currents Along Transmission Lines , 2006, IEEE Transactions on Electromagnetic Compatibility.

[9]  H.-D. Bruns,et al.  Computation of interference in cables close to metal surfaces , 1998, 1998 IEEE EMC Symposium. International Symposium on Electromagnetic Compatibility. Symposium Record (Cat. No.98CH36253).

[10]  J.B. Nitsch,et al.  Complex-valued transmission-line parameters and their relation to the radiation resistance , 2004, IEEE Transactions on Electromagnetic Compatibility.

[11]  Nevin Altunyurt,et al.  An equivalent circuit model for the wire-to-surface junction based on method of moments , 2016, 2016 IEEE/ACES International Conference on Wireless Information Technology and Systems (ICWITS) and Applied Computational Electromagnetics (ACES).

[12]  Farhad Rachidi,et al.  A Review of Field-to-Transmission Line Coupling Models With Special Emphasis to Lightning-Induced Voltages on Overhead Lines , 2012, IEEE Transactions on Electromagnetic Compatibility.

[13]  Clayton R. Paul,et al.  A SPICE model for multiconductor transmission lines excited by an incident electromagnetic field , 1994 .

[14]  A. Gheonjian,et al.  Application of hybrid MOM/MTL method to simulation of interaction between cable harness and antennas , 2009, 2009 International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory.

[15]  L. Paletta,et al.  Susceptibility analysis of wiring in a complex system combining a 3-D solver and a transmission-line network simulation , 2002 .

[16]  Antonio Orlandi,et al.  Modeling DC power-bus structures with vertical discontinuities using a circuit extraction approach based on a mixed-potential integral equation , 2001, ECTC 2001.

[17]  I. Oganezova,et al.  Effective computational techniques for EMC analysis of cable harness , 2010, 2010 XVth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED).

[18]  Jürgen Nitsch,et al.  High-Frequency Multiconductor Transmission-Line Theory , 2010 .

[19]  A. Maffucci,et al.  An enhanced transmission line model for conducting wires , 2004, IEEE Transactions on Electromagnetic Compatibility.

[20]  R. Jobava,et al.  A hybrid MTL/MoM approach for investigation of radiation problems in EMC , 2004, Proceedings of the 9th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory, 2004. DIPED 2004..

[21]  M. Ianoz,et al.  EMC Analysis Methods and Computational Models , 1996 .

[22]  W. Zamboni,et al.  A Transmission-Line Model for Full-Wave Analysis of Mixed-Mode Propagation , 2008, IEEE Transactions on Advanced Packaging.

[23]  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.

[24]  Ashok K. Agrawal,et al.  Transient Response of Multiconductor Transmission Lines Excited by a Nonuniform Electromagnetic Field , 1980 .

[25]  G. Miano,et al.  An enhanced transmission line model for conductors with arbitrary cross sections , 2005, IEEE Transactions on Advanced Packaging.

[26]  C. Taylor,et al.  The response of a terminated two-wire transmission line excited by a nonuniform electromagnetic field , 1965 .

[27]  Farhad Rachidi,et al.  On the contribution of the electromagnetic field components in field-to-transmission line interaction , 1995 .

[28]  Hiroshi Toki,et al.  Electrodynamics of Multiconductor Transmission-line Theory with Antenna Mode , 2011 .

[29]  Farhad Rachidi,et al.  Formulation of the field-to-transmission line coupling equations in terms of magnetic excitation field , 1993 .