基于有源传输线模型的地-架空屏蔽线缆耦合特性分析与参数计算

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摘要在外场照射下,计算架空线缆上的感应电流分布时,大地的耦合是不能忽略的,如何从理论上分析大地耦合在线缆上的感应电流,是模拟飞机系统间电子对抗环境的重要基础,因为无论是共模还是异模干扰,都是通过线缆耦合传递能量的。利用有源传输线理论建立的地-线缆耦合模型,给出了纵向阻抗的修正公式,分析了高频下参数的适用范围;同时,针对理论分析结果,进行了实测比对。这为飞机系统间电磁干扰实验的实施提供了必要的理论和数据基础。

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	朱峰
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关键词 ：线缆感应电流, 有源传输线模型, 地-线缆耦合, 纵向阻抗

Abstract：The current distribution on the shield cable irradiated by electromagnetic waves was greatly associated with the ground. How to obtain the induced current on the cable theoretically is an important foundation of simulating the aircraft in the state of electronic countermeasures. Interferences are usually caused by cable coupling energy, no matter what is common mode or different mode interference. By means of transmission line model with a distributed source, this paper provides a correction expression of the transmission line parameters. The corrected parameters can be available to 1GHz within the margins of error ±5dB. Meanwhile, trial comparisons are carried out, which offer a basic foundation for the aircraft confrontation test in the lab.

Key words： Induced current on the cable transmission line model with a distributed source cable- ground coupling longitudinal impedance

出版日期: 2016-03-03

PACS:

TN011

作者简介: 邱日强男,1990年生,博士研究生,研究方向为电磁兼容和电磁场对屏蔽电缆的影响。E-mail: qiurq616490@163.com

引用本文:

朱峰, 邱日强, 牛大鹏, 刘明川, 孟莹. 基于有源传输线模型的地-架空屏蔽线缆耦合特性分析与参数计算[J]. 电工技术学报, 2016, 31(4): 22-27. Zhu Feng, Qiu Riqiang, Niu Dapeng, Liu Mingchuan, Meng Ying. Coupling Characteristic Analysis and Parameter Calculation of Ground and Above-Ground Shielded Cables Based on Transmission Line with a Distributed Source Model. Transactions of China Electrotechnical Society, 2016, 31(4): 22-27.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2016/V31/I4/22

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