混响室法欠模状态屏蔽体屏蔽效能测试技术研究

doi:10.16180/j.cnki.issn1007-7820.2020.04.001

Abstract

Abstract:

Due to the non-uniform distribution of electromagnetic field in undermoded enclosure, the measurement results of the shielding effectiveness are related to the position. Therefore, it is necessary to use a probe or a monopole antenna for multi-position measurement which is cumbersome. In this study, the long-wire antenna was used to measure the shielding effectiveness of the enclosure under the undermoded state, and compared with the monopole antenna measurements. The free-space reflection coefficient S₁₁ of the antenna was measured in anechoic chamber. The shielding effectiveness of the shielding shell was measured by different antennas in the reverberation chamber, and the cavity resonance characteristic was analyzed with S₂₂. The experiment results showed that the long-wire antenna had better broadband matching characteristic than the monopole antenna, and the measured shielding effectiveness could better reflect the resonant characteristics of the enclosure, which provided guidance for shielding effectiveness evaluation of enclosures and had engineering application value.

Key words: enclosure, undermod state, reverberation chamber, shielding effectiveness, long-wire antenna, resonant

CLC Number:

TN06

PENG Guanghui,ZHOU Zhongyuan. Research on Test Techniques for Shielding Effectiveness of Undermoded Enclosure in Reverberation Chamber[J].Electronic Science and Technology, 2020, 33(4): 1-5.

Figures/Tables 10

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References 16

[1]	王庆国, 贾锐, 程二威 . 混响室连续搅拌工作模式下的辐射抗扰度测试研究[J]. 高电压技术, 2010,36(12):2954-2959.
	Wang Qingguo, Jia Rui, Cheng Erwei . Test methods of radiated immunity in reverberation chamber with continuously moving stirrer[J]. High Voltage Engineering, 2010,36(12):2954-2959.
[2]	郎为民, 姜斌, 张云峰 , 等. 电磁屏蔽原与应用[M]. 北京: 机械工业出版社, 2009.
	Lang Weimin, Jiang Bin, Zhang Yunfeng , et al. Electromagnetic shielding principles and applications[M]. Beijing: China Machine Press, 2009.
[3]	荀京京, 许耀伟, 沈涛 , 等. GJB 5792-2006,军用涉密信息系统电磁屏蔽体等级划分和测量方法[S]. 北京:中国人名解放军总装备部, 2006.
	Xun Jingjing, Xu Yaowei, Shen Tao , et al. GJB 5792-2006, Classification and measurement methods for shielded enclosures of military security information system[S]. Beijing:General Equipment Department of the Chinese People’s Liberation Army, 2006.
[4]	Hill D A . Electromagnetic fields in cavities: deterministic and statistical theories[M]. New Jersey:John Wiley and Sons, 2009.
[5]	王松, 武占成, 崔耀中 , 等. 混响室时域有限差分数值模型的快速计算方法[J]. 高电压技术, 2013,39(3):682-688.
	Wang Song, Wu Zhancheng, Cui Yaozhong , et al. Fast computation method for numerical model in FDTD of reverberation chamber[J]. High Voltage Engineering, 2013,39(3):682-688.
[6]	Leferink F B, Bergsma H, Van J . Shielding effectiveness measurements using a reverberation chamber[J]. Electromagnetic Compatibility, 2006,48(5):505-508.
[7]	Bush W, Profir I, Ikeuchi N , et al. IEEE 299.1-2013-IEEE,standard method for measuring the shielding effectiveness of enclosures and boxes having all dimensions between 0.1 m and 2 m[S]. New York: Standard Development Committee, 2013.
[8]	Orjubin G, Richalot E, Mengue S , et al. Statistical model of an undermoded reverberation chamber[J]. IEEE Transactions on Electromagnetic Compatibility, 2006,48(1):248-251. doi: 10.1109/TEMC.2006.870705
[9]	刘逸飞 . 混响室频率搅拌技术及其在屏蔽效能测试中的应用研究[D]. 石家庄:军械工程学院, 2014.
	Liu Yifei . Research on frequency stirring technology and its application on shielding effectiveness test in reverberation chamber[D]. Shijiazhuang:Mechanical Engineering College, 2014.
[10]	王莹, 于利娟, 张民 . 三类手机天线辐射与SAR仿真对比分析[J]. 电子科技, 2015,28(1):53-56.
	Wang Ying, Yu Lijuan, Zhang Min . Simulation analysis of the radiation pattern of three types of mobile phone antenna and the SAR contrast analysis[J]. Electronic Science and Technoogy, 2015,28(1):53-56.
[11]	Tait G B, Hager C, Slocum M B , et al. Onmeasuring shielding effectiveness of sparsely moded enclosures in a reverberation chamber[J]. IEEE Transactions on Electromagnetic Compatibility, 2013,55(2):231-240. doi: 10.1109/TEMC.2012.2220779
[12]	丁坚进, 沙斐 . EMC混响室模态研究[J]. 电波科学学报,2005, 20(5):557-600.
	Ding Jianjin, Sha Fei . Analysis of electromagnetic modestates in an EMC reverberation chamber[J]. Chinese Journal of Radio Science, 2005,20(5):557-600.
[13]	王大增 . 基于FDTD算法的混响室研究[D]. 西安:西安电子科技大学, 2014.
	Wang Dazeng . Reverberation chamber based on FDTD algorithm research[D]. Xi’an:Xidian University, 2014.
[14]	周忠元, 周香, 张娴 , 等. GB/T 17626.21,电磁兼容试验和测量技术混波室试验方法[S]. 北京:中国国家标准化管理委员会, 2011.
	Zhou Zhongyuan, Zhou Xiang, Zhang Xian , et al. GB/T 17626.21,Electromagnetic compatibility-Testing and measurement-Reverberation chamber test methods[S]. Beijing:Standardization Administration of the People’s Republic of China, 2011.
[15]	王庆国, 程二威, 周星 . 电波混响室理论与应用[M]. 北京: 国防工业出版社, 2000.
	Wang Qingguo, Cheng Erwei, Zhou Xing. Theories and applications of electromagnetics reverberation chamber[M]. Beijing: National Defense Industry Press, 2000.
[16]	刘逸飞, 陈永光, 程二威 , 等. 频率搅拌嵌套混响室场分布统计特性[J]. 强激光与粒子束, 2016,44(5):1-9.
	Liu Yifei, Chen Yongguang, Cheng Erwei , et al. Statistical characteristics of frequency stiring nested reverberation chamber field distribution[J]. High Power Laser and Particle Beams, 2016,44(5):1-9.

实验设备	性能参数
矢量网络分析仪	频率范围300 kHz~18 GHz
混响室	最低使用频率约150 MHz
屏蔽壳体	214 mm×176 mm×250 mm
喇叭天线	频率范围1~18 GHz
单极子天线	长度40 mm, 20 mm
长线天线	长度1.1 m

谐振模式	f/GHz	谐振模式	f/GHz
f₀₂₁	1.806	f₂₁₂	2.03
f₂₀₂	1.842	f₀₂₂	2.082
f₁₂₀	1.843	f₃₀₁	2.186
f₁₀₃	1.925	f₁₂₂	2.197
f₁₂₁	1.938	f₁₁₃	2.105
f₀₁₃	1.985

Research on Test Techniques for Shielding Effectiveness of Undermoded Enclosure in Reverberation Chamber

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