基于近场扫描的辐射源重构方法

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• 英文论文题名：Near-Field Scanning Based Equivalent Radiation Source Method
• 论文作者：李军 ; 魏兴昌
• 英文论文作者：Jun Li ; Xing-Chang Wei ; College of Information Science and Electronic Engineering of Zhejiang University
• 年：2017
• 作者机构：浙江大学信息与电子工程学院;
• 论文关键词：等效辐射源 ; 无相位 ; 磁偶极子阵列 ; 差分进化
• 英文论文关键词：Equivalent radiation source ; amplitude-only ; magnetic dipole array ; differential evolution
• 会议召开时间：2017-05-08
• 会议录名称：2017年全国微波毫米波会议论文集（中册）
• 英文会议录名称：Proceedings of 2017 National Conference on Microwave and Millimeter Waves(NCMMW2017)
• 语种：中文
• 分类号：TN820
• 学会代码：ZDWB
• 会议名称：2017年全国微波毫米波会议
• 会议地点：中国浙江杭州
• 主办单位：中国电子学会
• 学会名称：中国电子学会微波分会
• 页数：4
• 文件大小：1211k
• 原文格式：D
• 会议级别：全国

摘要

本文提出了一种用来代替拥有复杂结构的辐射电路的等效辐射源方法,该方法利用无相位近场扫描磁场来重构等效磁偶极子阵列源,且偶极子的位置,方向,偶极矩通过差分进化算法优化得到。将偶极子等效源批量导入三维全波仿真软件后,我们就可以有效的分析其近场电磁干扰和远场辐射特性。本文通过设计的基于高阻抗表面的贴片天线和一款商用时钟电路来验证该方法的精确度和有效性,验证结果表明该等效辐射源方法能够精确地用于复杂电路的近场电磁干扰分析和远场辐射预测。该方法也可用于复杂天线的近、远场预测。
An equivalent radiation source method is proposed to take place of the real radiating integrated circuit(IC) in this paper. The method utilizes amplitude-only near-field data to reconstruct equivalent magnetic dipole array, and the differential evolution optimization algorithm is proposed to extract the locations, orientation and moments of those dipoles. By importing the equivalent dipoles model into 3D full-wave simulator, the electromagnetic interference issues can be well predicted. A high impedance surface based patch antenna and commercial clock circuit are used to validate the accuracy and efficiency of this proposed method. Good consistency is obtained which confirms the validity and efficiency of the method.

引文

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