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浙江大学学报(工学版)
J4  2013, Vol. 47 Issue (7): 1238-1245    DOI: 10.3785/j.issn.1008-973X.2013.07.016
通信工程、自动化技术     
高速电子系统非均匀传输线辐射问题　
许雪梅,张键洋,倪 兰,刘丽娟,邓联文,杜作娟
中南大学 物理与电子学院,湖南 长沙 410083　
Radiation problem of non-uniform transmission line in high-speed
electronic integrated circuits system
XU Xue-mei, ZHANG Jian-yang, NI Lan, LIU Li-juan, DENG Lian-wen, DU Zuo-juan
School of Physics and Electronics, Central South University, Changsha 410083, China
 全文: PDF 
摘要：

建立非均匀传输线简化后的阶跃型均匀传输线的散射参数模型,提出计算阶跃型非均匀传输线的散射参数和电压分布的方法.根据天线电流的假设理论,计算阶跃型非均匀传输线的远场辐射电场强度以及辐射方向分布情况,对天线电流的假设理论进行辐射方向修正.将计算结果与ANSYS公司高频电磁场数值计算软件HFSS仿真结果进行对比分析,讨论不同相对介电常数的板材和铜箔厚度变化时的远场辐射变化情况.当相对介电常数较小和铜箔厚度较厚时可以有效地降低阶梯型非均匀传输线远场辐射强度.
关键词： 非均匀传输线;  散射参数;  辐射    
Abstract:

The scattering parameter model of step uniform transmission line was constructed after non-uniform transmission line was simplified. The methods about calculating the scattering parameter and voltage distribution were proposed. According to the antenna current hypothesis, the far field -radiation intensity and distribution of radiation direction of the step non-uniform transmission were calculated aiming at the correction of radiation direction for the antenna current hypothesis. The calculation results were compared with the simulation results of HFSS, which was developed by ANSYS company. The situation about  the far field-radiation variation was discussed among different relative dielectric constant and different copper thickness. Results show that when the relative dielectric constant is lower and the copper thickness is thicker, the far field-radiation intensity of step non-uniform transmission can be effectively reduced.
Key words: non-uniform transmission line    scattering parameter    radiation
出版日期: 2013-08-15
:  TN 98  
基金资助:

国家自然科学基金资助项目(61172047,61071025）.
作者简介: 许雪梅（1971-），女，副教授，从事电磁兼容、数字图像处理的研究.E-mail：xuxuemei999@126.com
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引用本文:

许雪梅,张键洋,倪 兰,刘丽娟,邓联文,杜作娟. 高速电子系统非均匀传输线辐射问题　[J]. J4, 2013, 47(7): 1238-1245.

XU Xue-mei, ZHANG Jian-yang, NI Lan, LIU Li-juan, DENG Lian-wen, DU Zuo-juan. Radiation problem of non-uniform transmission line in high-speed
electronic integrated circuits system. J4, 2013, 47(7): 1238-1245.

链接本文:

http://www.zjujournals.com/xueshu/eng/CN/10.3785/j.issn.1008-973X.2013.07.016    或    http://www.zjujournals.com/xueshu/eng/CN/Y2013/V47/I7/1238

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