开放环境中EMI近场阵列测量及空间状态分析

taptap下载安装安卓学报 ›› taptap点点手机网页 , taptap点点手机网页 ›› Issue (4): 1-9.

• 民用航空 • 下一篇

开放环境中EMI近场阵列测量及空间状态分析

宫峰勋，贺瑞瑞

（taptap下载安装安卓电子信息与自动化学院，天津300300）

收稿日期:2021-03-08 修回日期:2021-05-07 出版日期:2022-08-15 发布日期:2023-10-28
作者简介:宫峰勋（1965—），男，吉林长春人，教授，硕士，研究方向为电磁兼容与电磁干扰分析、民航通信导航监视与多源数据融合.
基金资助:
国家重点研发计划项目（2018YFC0809500）

EMI near-field array measurement and spatial analysis in open test filed

GONG Fengxun, HE Ruirui

(College of Electronic Information and Automation, CAUC, Tianjin 300300, China)

Received:2021-03-08 Revised:2021-05-07 Online:2022-08-15 Published:2023-10-28

摘要/Abstract

摘要： 为了提高辐射电磁干扰（EMI，electromagneticinterference）的测量效率、测量精度和测量尺度，设计了一种改进的电小环探头，用来构建EMI近场测量的电小环探头阵列。通过改变高度、距离及功率参数，构建了双信号的同频干扰、带内干扰的开放近场测量环境。实际测量数据直观显示了被测全向天线和定向天线的E面和H面辐射EMI分布，重构了辐射信号空间分布状态，描述了同频干扰、不同干扰距离、不同干扰功率和带内干扰条件下的辐射干扰状态，对比了不同条件下的干扰变化趋势。研究发现，干扰距离越近，干扰功率越大，辐射干扰强度越大；同频干扰对干扰状态的影响大于带内干扰。本近场测量探头阵列可以实现对辐射干扰及干扰模式的判断，具有比较广泛的工程应用价值。

关键词: 近场测量, 探头阵列, 辐射强度分布, 干扰状态分析

Abstract: In order to improve the efficiency, accuracy and scale of measuring the radiated electromagnetic interference (EMI), an improved electric ringlet probe is designed and used to construct an electric ringlet probe array for EMI near-field measurement. By changing different height, distance and power parameters, an open near-field test environment of co-channel interference and in-band interference of dual signals is constructed. According to the actual measurement data, the radiation distribution of E-plane and H-plane of the tested omnidirectional antenna and directional antenna is visually displayed, and the spatial distribution state of the radiated signal is reconstructed. The radiated interference states under different interference distance, different interference power, co-channel interference and in-band interference are depicted, and the changing trends of interference under these different conditions are compared. It is found that the closer the interference distance, the greater the interference power, and the greater the intensity of radiated interference. In addition, the influence of the co-channel interference on the interference state is greater than that of the in-band interference. The near-field measurement probe array can realize the judgment of radiation interference and interference mode, which has a relatively wide range of engineering application value.

Key words: near-field measurement, probe array, radiation intensity distribution, interference state analysis

中图分类号:

TM937
TN820

宫峰勋, 贺瑞瑞. 开放环境中EMI近场阵列测量及空间状态分析[J]. taptap下载安装安卓学报, 2022, 40(4): 1-9.

GONG Fengxun, HE Ruirui. EMI near-field array measurement and spatial analysis in open test filed[J]. Journal of Civil Aviation University of China, 2022, 40(4): 1-9.

参考文献 17

[1]	李伟, 魏光辉, 孙梳清, 等. 通信装备随机噪声电磁辐射效应预测方法[J]. 北京理工大学学报, 2019, 39(11): 1167-1172.
[2]	李伶研, 高振斌, 宋涛, 等. 电磁近场探测扫描系统的设计与实现[J].河北工业大学学报, 2018, 47(2): 14-19.
[3]	陈嘉祥. 电磁兼容近场测试系统设计及近场探头对被测场影响的研究[D]. 北京: 北京交通大学, 2017.
[4]	李伟. 电磁场近场扫描阵列天线系统的研究与设计[D]. 北京: 北京邮电大学, 2013.
[5]	李瑶. 拓展低频带宽的电磁干扰近场扫描测量系统设计[D]. 西安: 西安电子科技大学, 2019.
[6]	LI G H, CHEN H, CHEN J H． SG128 multi-probe spherical near-field antenna test range and novel antenna measurements[C]//7th Internation－ al Conference on Communications and Networking in China, August 810, 2012, Kunming, China． IEEE, 2012: 689-693．
[7]	KITTIWITTAYAPONG S, PHAEBUA K, SITTITHAI P, et al． Low-cost planar near-field to far-field measurement system for a small antenna [C]//2016 13th International Conference on Electrical Engineering/ Electronics, Computer, Telecommunications and Information Techno logy(ECTI-CON), June 28-July 1, 2016, Chiang Mai, Thailand． IEEE, 2016: 1-3．
[8]	魏光辉, 纪凯夫, 孟令媛. 效应物置入对环境电磁辐射场强测试的影响[J]. 北京理工大学学报, 2019, 39(11): 1173-1179, 1186.
[9]	陈柏燊. 阵列天线设计及非线性校准技术研究[D]. 成都: 电子科技大学, 2017.
[10]	YANG G W, LI J Y, ZHOU S G, et al． A wide-angle E-plane scanning linear array antenna with wide beam elements[J]． IEEE Antennas and Wireless Propagation Letters, 2017, 16: 2923-2926．
[11]	罗雪. 基于降低互耦影响的二维稀疏阵优化设计[J]. 北京理工大学学报, 2020, 40(5): 531-536.
[12]	王琳. 基于紧耦合结构的天线阵列技术研究[D]. 西安: 西安电子科技大学, 2019.
[13]	NAKAMURA S, IWAZAKI S, ICHIGE K． An optimum 2D sparse array configuration with reduced mutual coupling [C]//2018 International Symposium on Antennas and Propagation(ISAP), October 23-26, 2018, Busan, Korea(South)． IEEE, 2018: 1-2．
[14]	ARAI H, SUZUKI R． Cross scanning near field measurement for sym－ metrical planar array[C]//2018 IEEE Conference on Antenna Measure－ ments & Applications, September 3-6, 2018, Sweden． IEEE, 2018: 1-2．
[15]	李燕. 宽带宽角扫描相控阵天线研究[D]. 成都: 电子科技大学, 2020.
[16]	宋嘉奇, 陶海红. 一种稀布阵列天线的近场波束综合算法[J]. 西安电子科技大学学报, 2018, 45(6): 14-18.
[17]	白会新, 马振洋, 王志武, 等. 射频前端基准电流源低电压抗电磁干扰设计[J]. taptap下载安装安卓学报, 2017, 35(4): 51-53, 61.

开放环境中EMI近场阵列测量及空间状态分析

EMI near-field array measurement and spatial analysis in open test filed

可视化

摘要/Abstract

引用本文

使用本文

参考文献 17

相关文章 0

编辑推荐

Metrics

本文评价