T型微带线间串扰问题的FDTD分析与抑制

严冬; 孙力; 孙亚秀; 姜保军

doi:10.3724/SP.J.1146.2006.01773

T型微带线间串扰问题的FDTD分析与抑制

doi: 10.3724/SP.J.1146.2006.01773

基金项目:

国家自然科学基金(50477009)和黑龙江省自然科学基金(E200625)资助课题

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出版历程
- 收稿日期: 2006-11-13
- 修回日期: 2007-05-08
- 刊出日期: 2007-09-19

Analysis and Suppression of Crosstalk for T-shaped Microstrip by Using FDTD

摘要

摘要: T型微带线的串扰是高速电路信号完整性问题中的重要组成部分。采用PML(Perfectly Matched Layer)-FDTD方法首次对T型微带线间的串扰问题进行全波分析，并给出抑制串扰的具体措施。PML-FDTD仿真结果表明，不同的改进结构参数对串扰的影响不同：(1)开口距离S越大线间串扰越小，最多减小10dB；(2)开口角度越小线间串扰越小，减小幅度最多达14dB。由此得出，在T型微带线上开三角形口，通过改变开口距离S和开口角度可实现对邻近微带线串扰的有效抑制。
- 时域有限差分法;微带线;串扰;完全匹配层
Abstract: The crosstalk of T-shaped microstrip is the important component in signal integrity of a high-speed circuit. In this paper, the fullwave analysis of the crosstalk is carried out by adopting the Perfectly Matched Layer Finite-Difference Time-Domain (PML-FDTD) method, and then the measures of reducing crosstalk are proposed in detail. The different structure parameters of improved T-shaped microstrip have different influence on the crosstalk. That is, (1) the crosstalk between microstrips is smaller as the orifice distance S is becoming bigger, and the amplitude of crosstalk is reduced to 10dB; (2) The value of is smaller as the crosstalk between microstrip is becoming smaller correspondingly, and the amplitude of crosstalk is reduced to 14dB. Thus opening an orifice on the T-shaped microstrip can reduce the crosstalk between one T-shaped microstrip and another adjacent one remarkably by changing orifice distance S and angle .

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参考文献(1)

李丽平，李玉山，王崇剑. 防护线减小微带线间串扰的FDTD分析[J].电子与信息学报.2006, 28(3):574-576浏览[2]黎淑兰，刘元安，宋占海, 等. 耦合微带线间串扰问题的FDTD法分析. 微波学报, 2006, 22(2): 17-20. Li Shu-lan, Liu Yuan-an, and Song Zhan-hai, et al.. Analysis of crosstalk of couple microstrip lines by FDTD. Journal of Microwaves, 2006, 22(2): 17-20.[3]Xiao F C, Murano K, and Kami Y. The use of via holes for controlling the crosstalk of non-parallel microstrip lines on PCBs. IEEE International Symposium on Electromagnetic Compatibility, Montreal, Canada, 2002, 2: 633-638.[4]刘博，陈如山. 降低耦合微带线间串扰问题..FDTD分析. 微波学报, 2003, 19(3): 7-9. Liu Bo and Chen Ru-shan. Crosstalk reduction on coupled microstrip lines structures: An FDTD approach. Journal of Microwaves, 2003, 19(3): 7-9.[5]Berenger J P. A perfectly matched layer for the absorption of electromagnetic wave[J].Journal of Computational Physics.1994, 114:185-200[6]Sheen D M, Ali S M, Abouzahra M D, and Kong J A. Application of the three-dimensional finite-difference time-domain method to the analysis of planar microstrip circuits[J].IEEE Trans. on Microwave Theory and Techniques.1990, 38(7):849-857[7]Yee K S. Numerical solution of initial boundary value problems involving Maxwells equations in isotropic media. IEEE Trans. on Antennas and Propagation, 1966, AP-14(3): 302-307.[8]Berenger J P. Three-dimensional perfectly matched layer for the absorption of electromagnetic waves[J].Journal of Computational Physics.1996, 127:363-379[9]李征帆，曹毅. 微波与高速电路中的电磁场理论及其数值方法. 北京: 科学出版社, 2002: 290-301. Li Zheng-fan and Chao Yi. Electromagnetic field theory and numerical methods in microwave and high-speed circuits. Beijing: Science press, 2002: 290-301.[10]梁昌洪. 计算微波. 西安: 西北电讯工程学院出版社, 1984: 116-127.[11]Okoniewski M, Okoniewska E, and Stuchly M A. Three-dimensional subgridding algorithm for FDTD[J].IEEE Trans. on Antennas and Propagation.1997, 45(3):422-429

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