魏光辉,
潘晓东,
卢新福
陆军工程大学电磁环境效应国家级重点实验室 ??石家庄 ??050003
基金项目:国家自然科学基金(61372040)
详细信息
作者简介:胡德洲：男，1990年生，博士生，研究方向为电磁环境效应试验评估技术
魏光辉：男，1964年生，教授，博士生导师，研究方向为电磁兼容与防护技术
潘晓东：男，1980年生，讲师，博士，研究方向为电磁兼容与防护技术
卢新福：男，1988年生，博士，研究方向为电磁环境效应试验评估技术
通讯作者:胡德洲 hdz199075@sina.cn
中图分类号:TN06计量
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被引次数:0
出版历程
收稿日期:2018-04-11
修回日期:2018-12-13
网络出版日期:2018-12-20
刊出日期:2019-04-01
Investigation on the Radiated Interference E-field Threshold Testing for Common-mode Interference of Transmission Lines in Reverberation Chambers
Dezhou HU,,Guanghui WEI,
Xiaodong PAN,
Xinfu LU
National Key Laboratory on Electromagnetic Environment Effects, Army Engineering University, Shijiazhuang 050003, China
Funds:The National Natural Science Foundation of China (61372040)
摘要
摘要:为在混响室中线缆共模干扰时的设备(EUT)进行临界辐射干扰场强测试，并确保与开阔场中测试结果一致，该文推导了线缆上共模电流满足的方程，将共模电流分解为相应的特征电流，计算了终端负载任意时线缆最大方向性系数的变化范围。以单导体传输线和同轴线为EUT，分别在混响室和开阔场中测试线缆的临界干扰场强，对计算结果进行了验证。结果表明：最大方向性系数的计算结果可以保证两种不同场地中测试结果的一致性，双线的共模干扰以及同轴线均可以等效为单线，且线缆弯曲对测试结果基本没有影响。
关键词:混响室/
临界干扰场强/
线缆/
方向性系数
Abstract:To test the radiated interference E-field threshold of Equipment Under Test (EUT) with common-mode interference of transmission lines in reverberation chambers and unify the test results with the open areas, the range of the maximum directivity of the lines with random loads is calculated by the derivation of the equation of the common-mode currents and decomposition of the currents into the corresponding characteristic ones. The calculated results are validated with the experiments performed in a reverberation chamber and an open area, respectively, with a single conductor line and a coaxial cable as the EUT. The theoretical and experimental results show that the test results in the two different areas can be unified with the calculated results. The common mode interference of two conductor lines and coaxial cables can be equivalent to single conductor lines and the bend of the lines almost has no influence on the test results.
Key words:Reverberation chamber/
Radiated interference E-field threshold/
Transmission line/
Directivity
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