This paper presents a hybrid method consisting of thin wire FDTD method and transmission line (TL) equations to be used for the coupling analysis of multiconductor transmission lines (MTLs) excited by a dipole antenna. In this method, the thin wire FDTD method is used to build the structure of the dipole antenna and obtain the radiation electromagnetic fields surrounding the MTLs, which are introduced into the TL equations as the distribution sources. The TL equations are utilized to model the coupling of the radiation electromagnetic fields to the MTLs, which are discrete by the scheme of the FDTD method to obtain the transient voltage and current responses on the lines and terminal loads. The accuracy and efficiency of this method have been verified by comparing with the commercial simulation software CST via one case. Moreover, the influences of the frequencies and polarization of the dipole antenna and the heights of the MTLs on the coupling of MTLs are analyzed.
2. Tesche, F. M. and C. M. Butler, "On the addition of EM field propagation and coupling effects in the BLT equation," Interaction Notes, No. 588, 1-43, 2003.
3. Xu, Q. X. and Y. Z. Xie, "The transient response of discontinuous MTL based on BLT equation," 7th Asia-Pacific Conference on Environmental Electromagnetics (CEEM), 411-413, 2015.
4. Du, J. K., S. M. Hwang, J. W. Ahn, and J. G. Yook, "Analysis of coupling effects to PCBs inside waveguide using the modified BLT equation and full-wave analysis," IEEE Transactions on Microwave Theory and Techniques, Vol. 61, No. 10, 3514-3523, 2013.
doi:10.1109/TMTT.2013.2277994
5. Paul, C. R., "A SPICE model for multiconductor transmission lines excited by an incident electromagnetic field," IEEE Transactions on Electromagnetic Compatibility, Vol. 36, No. 4, 342-354, 1994.
doi:10.1109/15.328864
6. Erdin, I., A. Dounavis, and R. Achar, "A SPICE model for incident field coupling to lossy multiconductor transmission lines," IEEE Transactions on Electromagnetic Compatibility, Vol. 43, No. 4, 485-494, 2001.
doi:10.1109/15.974627
7. Xie, H. Y., J. G.Wang, R. Y. Fan, and Y. N. Liu, "A hybrid FDTD-SPICE method for transmission lines excited by a nonuniform incident wave," IEEE Transactions on Electromagnetic Compatibility, Vol. 51, No. 3, 811-817, 2009.
doi:10.1109/TEMC.2009.2020913
8. Paul, C. R., "A SPICE model for multiconductor transmission lines excited by an incident electromagnetic field," IEEE Transactions on Electromagnetic Compatibility, Vol. 36, No. 4, 342-354, 2009.
doi:10.1109/15.328864
9. Xie, H. Y., J. G.Wang, R. Y. Fan, and Y. N. Liu, "SPICE models to analyze radiated and conducted susceptibilities of shielded coaxial cables," IEEE Transactions on Electromagnetic Compatibility, Vol. 52, No. 1, 215-222, 2010.
doi:10.1109/TEMC.2009.2036929
10. Xie, H. Y., J. G. Wang, Y. Li, and H. F. Xia, "Efficient evaluation of multiconductor transmission lines with random translation over ground under a plane wave," IEEE Transactions on Electromagnetic Compatibility, Vol. 56, No. 6, 1623-1629, 2014.
doi:10.1109/TEMC.2014.2330823
11. Xie, H. Y., J. G. Wang, R. Y. Fan, and Y. N. Liu, "SPICE models for prediction of disturbances induced by nonuniform fields on shielded cables," IEEE Transactions on Electromagnetic Compatibility, Vol. 53, No. 1, 185-192, 2011.
doi:10.1109/TEMC.2010.2045895
12. Ye, Z. H., C. Liao, X. Z. Xiong, and M. Zhang, "The research and application of a novel time domain hybrid method for EMI analysis of a shielded device with lumped circuit," IEEE Transactions on Electromagnetic Compatibility, Vol. 58, No. 4, 964-970, 2016.
doi:10.1109/TEMC.2016.2551982
13. Ye, Z. H., X.-Z. Xiong, C. Liao, and Y. Li, "A hybrid method for electromagnetic coupling problems of transmission lines in cavity based on FDTD method and transmission line equation," Progress In Electromagnetic Research M, Vol. 42, 85-93, 2015.
doi:10.2528/PIERM15032605
14. Ye, Z. H., C. Liao, X. Z. Xiong, and M. Zhang, "A hybrid method combining the novel TDSC technique and FDTD method for the EMI analysis of transmission line network," IEEE Transactions on Electromagnetic Compatibility, Vol. 58, No. 4, 1211-1217, 2017.
doi:10.1109/TEMC.2017.2651884
15. Boonzaaier, J. J. and C. W. I. Pistonius, "Finite-difference time-domain approximations for thin wire with a lossy coating," IEE Proceedings Microwaves, Antennas and Propagation, Vol. 141, No. 2, 107113, 1994.
doi:10.1049/ip-map:19949903
Submit
