二端口网络散射参数理论及其在平面EMI滤波器测试中的应用

Abstract
Figure/Table
References
Related Citation (3)

Download: PDF (849 KB) HTML (0 KB)
Export: BibTeX | EndNote (RIS)

Abstract EMI filter plays an important role in restraining conducted EMI. Planar EMI filter has a decreased size and high reliability in high frequency performance compared to passive discrete EMI filter. However, the performance of EMI filter cannot be exactly expected using existing methods. Therefore, the method of scatter parameters is used to measure EMI filter performance in this paper. The relationship between scatter parameter and insertion gain of EMI filter is derived; the method to predict the insertion gain of filter under different impedance is proposed. The near field coupling model of the planar filter in high frequency is deduced. Based on the relationship of scattering parameters and impedance parameters relations, the method to extract the mutual inductance in the near field is proposed. A sample planar EMI filter is completed. The theoretical calculation and practical measurement under different impedance conditions of the insertion gain are completed. At the same time, the differential structure of the near field coupling model is deduced and the insertion gain in standard impedance conditions is calculated, and compared with the actual measurements. The feasibility of the theory is verified.

Key words： Planar EMI filter scatter parameter insertion gain near field couple

Received: 21 June 2012 Published: 28 November 2013

PACS:

TM713

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Shi Leilei
	Wang Shishan
	Xu Chenchen

Cite this article:

Shi Leilei,Wang Shishan,Xu Chenchen. Theory of Scatter Parameters of Two Port Network and Its Application in the Test of Planar EMI Filter[J]. Transactions of China Electrotechnical Society, 2013, 28(2): 78-85.

URL:

http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2013/V28/I2/78

[1] 张艳军, 徐德鸿, 钱照明. 平面磁技术发展概况[J].机械制造与自动化, 2004, 33(4): 1-5.
[2] Chen Rengang. Integration of EMI filter for distribute power system(DPS) front-end convert[C]. Proceedings of the IEEE 34th Annual Conference on Power Electronics Specialists Conference, Acapulco, Mexcio, 2003: 296-300.
[3] 王世山, 朱叶, 周小林. 圆环线匝构成的平面共模EMI滤波器的特性研究[J]. 电工技术学报, 2010, 26(11): 68-73.
[4] 周小林, 王世山, 崔永生. 平面集成滤波器LC单元的阻抗特性[J]. 电工电能新技术, 2010, 29(4): 18-22.
[5] 姜保军, 孙力. EMI滤波器阻抗失配与EMI信号的有效抑制[J]. 电机与控制学报, 2006, 10(3): 252-259.
[6] 和军平, 陈为, 姜建军. 功率因数校正电路杂散磁场对传导干扰发射作用的分析研究[J]. 中国电机工程学报, 2005, 25(14): 151-157.
[7] Wang Shuo, Lee F C. Using scattering parameters to characterize EMI filter[C]. Proceedings of the IEEE 35th Annual Conference on Power Electronics Specialists Conference, Achen, German, 2004: 297- 303.
[8] 陈恒林, 陈玮, 冯利民, 等. 基于阻抗测量共模扼流圈高频建模[J]. 电工技术学报, 2007, 22(4): 8-12.
[9] 聂剑红, 刘骥, 魏利军. EMI无源滤波器高频特性及其改善方法的研究[J]. 电力电子, 2007, 41(12): 36-38.
[10] 滑瑞霞, 张磊, 龙慧. EMI滤波器插入损耗分析[J].电子科技, 2011, 24(1): 65-67.
[11] 甘明刚, 陈杰, 区健昌等. EMI滤波器的共模插入损耗在阻抗失配状态的优化计算[J]. 北京邮电大学学报, 2006, 29(3): 95-98.
[12] 毛钧杰. 微波技术与天线[M]. 北京: 科学出版社, 2008.
[13] 窦建华, 徐兰天, 杨志学. 测量匹配网络S参数的转换模型[J]. 电子测量与仪器学报, 2011, 25(2): 191-197.
[14] 臧威, 倪锦根, 李锋. 基于邻接矩阵的电路信号流图的分析法[J]. 计算机应用与软件, 2009, 29(2): 152-155.
[15] Zhang Dongbing, Chen D Y Sable D. A new method to characteristic EMI filter[C]. Proceedings of the IEEE Applied Power Electronics Conference and Exposition, Anaheim, 1998, 15(19): 929-933.
[16] 陈恒林, 钱照明. 布局对EMI滤波器性能影响的研究[J]. 电工技术学报, 2008, 23(8): 7-12.