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

• 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

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.

电磁建模是电磁兼容电气设备表征的必不可少的工具。所有电气设备都必须满足国际电磁兼容性标准（EMC），以确保它不会干扰其他设备或容易受到外部干扰的影响。模拟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广泛使用。增长的处理器时钟信号速度和电子设备的尺寸降低使电磁模拟非常苛刻。不可能通过完整的3D电磁模拟器充分建模电子设备的复杂性。需要某种形式的电子设备简化。乔治绿色电磁研究所最近通过EPSRC资助的项目开发了一种使用近场扫描数据来表征印刷电路板（PCB）电磁排放的方法，以便可以构建其行为的简化模型。已证明该模型适合用于电磁模拟器。这项工作非常成功，并实现了所有项目目标，但仅在简单的PCB结构和频域中证明。但是，要使该方法完全合并到工业领域，它需要涵盖所有常见的PCB结构，它们的互连并扩展到时域方法。该建议将研究使用PCB的近场扫描扩展到迄今为止开发的技术，以便它可以提供所有常见类型的PCB的简化模型，并包括它们的互连以及将其特性结合到完整的系统模型中的方式。这项工作还将研究将方法扩展到时域的方法。这是希望可以开发用于完整3D电磁模拟器的模型，以使工程师能够在设计阶段提供EMC表征。

项目成果

Stochastic Analysis of Wideband Near-Field Emissions From Dipole Antennas and Integrated Circuits

偶极天线和集成电路宽带近场发射的随机分析

• DOI: 10.1109/temc.2013.2273737
• 发表时间: 2014
• 期刊: IEEE Transactions on Electromagnetic Compatibility
• 影响因子: 2.1
• 作者: Arnaut L

UWB radiation modes of printed circuits based on principal component analysis

基于主成分分析的印刷电路UWB辐射模式

• DOI: 10.1109/iceaa.2013.6632469
• 发表时间: 2013
• 作者: Arnaut L

Accurate Prediction of Magnetic Fields at Higher Planes using Near-Field Measurement

使用近场测量准确预测更高平面的磁场

• 发表时间: 2013
• 作者: C. OBIEKEZIE

Complex principal and independent component Analyses of radiated emissions for the time-frequency domain

复主成分和独立成分时频域辐射发射分析

• DOI: 10.1109/emceurope.2014.6931018
• 发表时间: 2014
• 作者: Arnaut L

Analysis of Radiated Fields from PCBs in the Time Domain

PCB 辐射场的时域分析

• 发表时间: 2014
• 作者: DWP Thomas