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Simplified models of emissions from electronic systems based on near field measurements

基于近场测量的电子系统辐射简化模型

基本信息

批准号：
EP/H051384/1
负责人：
David Thomas
金额：
$ 58.8万
依托单位：
University of Nottingham
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2011
资助国家：
英国
起止时间：
2011 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FH051384%2F1
关键词：
Simplified models emissions electronic systems

项目摘要

Electromagnetic modelling is an essential tool for electromagnetic compatibility characterisation of electrical equipment. All electrical equipment must satisfy international standards for electromagnetic compatibility (EMC) to ensure that it does not interfere with other equipment or is susceptible to external interference. The use of simulation software greatly reduces the design and development of new equipment that confirms compliance to EMC standards, so it is widely used throughout the electrical industry. The increasing processor clock signal speeds and the decreasing size of electronic devices has made electromagnetic simulation very demanding. It is not possible to fully model the complexity of electronic devices with full 3D electromagnetic simulators. Some form of simplification of the electronic devices is required. A recent EPSRC funded project by the George Green Institute for Electromagnetics Research has developed a way of characterising the electromagnetic emissions from printed circuit boards (PCBs) using near field scan data so that a simplified model of their behaviour can be constructed. The produced models have been demonstrated to be suitable for use in electromagnetic simulators. This work was very successful and achieved all the project objectives, but was only demonstrated on simple PCB structures and in the frequency domain. For this method to be fully incorporated in the industrial sector, however, it needs to encompass all common PCB structures, their interconnects and be extended into a time domain approach. This proposal will research extending the techniques developed so far using near field scans of PCBs so that it can provide simplified models of all common types of PCBs and include their interconnects and a way of combining their characteristics into complete system models. The work will also look at ways of extending the method into the time domain. In this was it is hoped that models suitable for use in full 3D electromagnetic simulators can be developed to enable engineers to provide EMC characterisation at the design stage.

电磁建模是电气设备电磁兼容性表征的重要工具。所有电气设备必须满足电磁兼容性（EMC）的国际标准，以确保其不会干扰其他设备或易受外部干扰。仿真软件的使用大大减少了确认符合EMC标准的新设备的设计和开发，因此在整个电气行业中得到广泛应用。处理器时钟信号速度的提高和电子设备尺寸的减小使得电磁仿真变得非常苛刻。使用全3D电磁模拟器无法完全模拟电子设备的复杂性。需要对电子设备进行某种形式的简化。由乔治绿色电磁学研究所最近资助的EPSRC项目开发了一种使用近场扫描数据表征印刷电路板（PCB）的电磁发射的方法，从而可以构建其行为的简化模型。所产生的模型已被证明是适用于电磁模拟器。这项工作非常成功，实现了所有项目目标，但仅在简单的PCB结构和频域中进行了演示。然而，要将这种方法完全纳入工业领域，它需要涵盖所有常见的PCB结构及其互连，并扩展到时域方法。该提案将研究扩展迄今为止使用多氯联苯近场扫描开发的技术，以便它可以提供所有常见类型的多氯联苯的简化模型，并包括其互连和将其特性组合成完整系统模型的方法。这项工作还将着眼于将该方法扩展到时域的方法。在这是它希望能够开发出适用于全三维电磁仿真器的模型，使工程师能够在设计阶段提供EMC特性。