发布求助
文献互助 智能选刊 最新文献

Proceedings of IEEE Symposium on Electromagnetic Compatibility最新文献

筛选
英文 中文
Measurement and computation of cable coupling in arbitrary environment 任意环境下电缆耦合的测量与计算
Proceedings of IEEE Symposium on Electromagnetic Compatibility Pub Date : 1994-08-22 DOI: 10.1109/ISEMC.1994.385694
F. Sattler, K. Gonschorek
{"title":"Measurement and computation of cable coupling in arbitrary environment","authors":"F. Sattler, K. Gonschorek","doi":"10.1109/ISEMC.1994.385694","DOIUrl":"https://doi.org/10.1109/ISEMC.1994.385694","url":null,"abstract":"The paper presents a method to determine the complex cable transfer impedance of shielded cables. This method is based on a combination of measurements and computations and allows one to handle multiwire cables too. Some curves of the complex transfer impedance for coaxial and multiconductor cables are presented. The coupling phenomena in inhomogeneous cable arrangements are discussed. The screen of a cable loop is excited by an external source and the signal which couples into the cable is calculated and measured. The calculation uses the determined cable transfer impedances. In the frequency domain an excitation by a second loop is discussed. For direct excitation results are presented in the time domain.<<ETX>>","PeriodicalId":154914,"journal":{"name":"Proceedings of IEEE Symposium on Electromagnetic Compatibility","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124949985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Electric field strengths created by electrosurgical units 电外科装置产生的电场强度
Proceedings of IEEE Symposium on Electromagnetic Compatibility Pub Date : 1994-08-22 DOI: 10.1109/ISEMC.1994.385616
R. Nelson, H. Ji
{"title":"Electric field strengths created by electrosurgical units","authors":"R. Nelson, H. Ji","doi":"10.1109/ISEMC.1994.385616","DOIUrl":"https://doi.org/10.1109/ISEMC.1994.385616","url":null,"abstract":"The electromagnetic environment found in hospital operating rooms can be quite hostile to electronic medical devices. The electromagnetic fields existing in the operating rooms are created by both distant sources such as AM and FM broadcast towers as well as local sources such as electrosurgical units. In this paper, results are presented of electric field strengths created by a typical electrosurgical unit. The field strengths are given as a function of frequency. Electric fields as large as 44 V/m were measured 1 meter from the electrosurgical unit. Interference was observed on monitoring equipment in the operating room during operation of the electrosurgical unit. Measurement results can be used by both the manufacturers of medical equipment as well as appropriate standards organizations when evaluating how to minimize the severity of electromagnetic interference in operating rooms.<<ETX>>","PeriodicalId":154914,"journal":{"name":"Proceedings of IEEE Symposium on Electromagnetic Compatibility","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115543108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
The radiative properties of electrically-small antennas 小型天线的辐射特性
Proceedings of IEEE Symposium on Electromagnetic Compatibility Pub Date : 1994-08-22 DOI: 10.1109/ISEMC.1994.385638
J. Mclean
{"title":"The radiative properties of electrically-small antennas","authors":"J. Mclean","doi":"10.1109/ISEMC.1994.385638","DOIUrl":"https://doi.org/10.1109/ISEMC.1994.385638","url":null,"abstract":"The radiative properties of electrically-small antennas are examined using the theory given by Wheeler, Chu, and Harrington. This theory predicts fundamental limitations on the bandwidth of such antennas. Some approximations are made in the theory; these approximations are examined. Several electrically-small antenna designs are evaluated in terms of how close they come to attaining the predicted fundamental limit of bandwidth. Also, the ideas upon which these designs are based are discussed. Finally, a technique for the measurement of the radiation and and the radiation efficiency of electrically-small antennas is reviewed and discussed with emphasis on the accurate separation of conduction and radiation losses.<<ETX>>","PeriodicalId":154914,"journal":{"name":"Proceedings of IEEE Symposium on Electromagnetic Compatibility","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115478462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 32
Proposed standard EMI modeling problems 提出标准EMI建模问题
Proceedings of IEEE Symposium on Electromagnetic Compatibility Pub Date : 1994-08-22 DOI: 10.1109/ISEMC.1994.385620
B. Archambeault, C. Brench
{"title":"Proposed standard EMI modeling problems","authors":"B. Archambeault, C. Brench","doi":"10.1109/ISEMC.1994.385620","DOIUrl":"https://doi.org/10.1109/ISEMC.1994.385620","url":null,"abstract":"As the number of computer tools to perform. EMI modeling tasks increase, the need for a set of standard \"problems\" becomes more important. These standard problems allow vendors to benchmark their codes against each other and provide the potential user with realistic examples of uses of the code applied to real world problems. This paper presents a number of different problems that exist in the real-life EMI engineer's world, and where EMI modeling could help the engineer make appropriate decisions. These problems are obtained by breaking the overall design problem into smaller subproblems, each manageable by itself. Results from the individual problems can be combined as needed.<<ETX>>","PeriodicalId":154914,"journal":{"name":"Proceedings of IEEE Symposium on Electromagnetic Compatibility","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121075923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Near- and far-field characterization of perforated screens: theoretical and experimental study of proposed definitions for the shielding performance 穿孔筛孔的近场和远场特性:屏蔽性能定义的理论和实验研究
Proceedings of IEEE Symposium on Electromagnetic Compatibility Pub Date : 1994-08-22 DOI: 10.1109/ISEMC.1994.385642
S. Criel, L. Martens, D. De Zutter
{"title":"Near- and far-field characterization of perforated screens: theoretical and experimental study of proposed definitions for the shielding performance","authors":"S. Criel, L. Martens, D. De Zutter","doi":"10.1109/ISEMC.1994.385642","DOIUrl":"https://doi.org/10.1109/ISEMC.1994.385642","url":null,"abstract":"The shielding performance of a periodically perforated plane shield is investigated, both theoretically and experimentally. Attention is focused upon a clear formulation of the near-field shielding effectiveness of the perforated screen. It will be shown that such a near-field analysis often is mandatory because the classical far-field definitions drastically overestimate the near-field shielding performance. Moreover, the influence of some relevant parameters (such as frequency, shield distance and loop radius) upon the near-field shielding effectiveness is analyzed.<<ETX>>","PeriodicalId":154914,"journal":{"name":"Proceedings of IEEE Symposium on Electromagnetic Compatibility","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125799379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
The feasibility of use of civilian EMC standards by military organizations 军事组织使用民用EMC标准的可行性
Proceedings of IEEE Symposium on Electromagnetic Compatibility Pub Date : 1994-08-22 DOI: 10.1109/ISEMC.1994.385619
R. M. Showers
{"title":"The feasibility of use of civilian EMC standards by military organizations","authors":"R. M. Showers","doi":"10.1109/ISEMC.1994.385619","DOIUrl":"https://doi.org/10.1109/ISEMC.1994.385619","url":null,"abstract":"Comparison of military EMC requirements with corresponding civilian standards shows many differences. Although in most cases there are parallel documents, and measurement techniques and limits show much agreement, it is likely that civilian standards can be substituted for military standards with some limitations. Eventually, steps can be taken to bring the two groups of standards much closer together.<<ETX>>","PeriodicalId":154914,"journal":{"name":"Proceedings of IEEE Symposium on Electromagnetic Compatibility","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128482472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Signal to noise transformation, the key to EMC 信号到噪声的变换，是电磁兼容的关键
Proceedings of IEEE Symposium on Electromagnetic Compatibility Pub Date : 1994-08-22 DOI: 10.1109/ISEMC.1994.385604
F. Leferink
{"title":"Signal to noise transformation, the key to EMC","authors":"F. Leferink","doi":"10.1109/ISEMC.1994.385604","DOIUrl":"https://doi.org/10.1109/ISEMC.1994.385604","url":null,"abstract":"The coupling of electromagnetic fields into or out of electric circuits is described. This coupling is described by means of a signal-to-noise-transformation (SNT), which gives the transformation of a wanted signal to unwanted noise. By using the SNT simple quantitative design rules can be developed which can be used to prevent EMC problems and are helpful in getting more insight into coupling phenomena.<<ETX>>","PeriodicalId":154914,"journal":{"name":"Proceedings of IEEE Symposium on Electromagnetic Compatibility","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127668789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 20
ESD source modeling in FDTD FDTD中的ESD源建模
Proceedings of IEEE Symposium on Electromagnetic Compatibility Pub Date : 1994-08-22 DOI: 10.1109/ISEMC.1994.385680
Mubashir Rizvi, J. L. Vetri
{"title":"ESD source modeling in FDTD","authors":"Mubashir Rizvi, J. L. Vetri","doi":"10.1109/ISEMC.1994.385680","DOIUrl":"https://doi.org/10.1109/ISEMC.1994.385680","url":null,"abstract":"Numerical modeling of the ESD event using the finite difference time domain (FDTD) technique is considered. Two methods of modeling an electrostatic discharge using FDTD are compared. The first consists of introducing the fields into the mesh from known analytic results in a region of the mesh which is homogeneous and letting the fields propagate towards the interaction of interest. The second consists of modeling the discharge current directly by discretizing the current density term in the Maxwell equations. The second offers obvious advantages in that the discharge can be modeled close to inhomogeneities such as circuit board traces and chip leads.<<ETX>>","PeriodicalId":154914,"journal":{"name":"Proceedings of IEEE Symposium on Electromagnetic Compatibility","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125682293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
A new generation of EMI receiver system 新一代电磁干扰接收机系统
Proceedings of IEEE Symposium on Electromagnetic Compatibility Pub Date : 1994-08-22 DOI: 10.1109/ISEMC.1994.385669
P. Sikora, W. Platt, J. Iannotti
{"title":"A new generation of EMI receiver system","authors":"P. Sikora, W. Platt, J. Iannotti","doi":"10.1109/ISEMC.1994.385669","DOIUrl":"https://doi.org/10.1109/ISEMC.1994.385669","url":null,"abstract":"The purpose of this paper is to describe the design of a new generation EMI receiver system. The paper covers the performance parameters that are required of a receiver system that is to be utilized in the process of EMI testing. The paper discusses in depth the limitations of digital signal processing techniques, and how they are utilized within the receiver system itself. Parallel signal information processing techniques are covered, showing the means by which this technique can be used to expand the coverage of the receiver past the digital processing limitations, while maintaining many of the advantages. The paper concludes with a discussion showing that the performance of the receiver system meets the requirements for the collection of valid data, while providing the means to obtain this data in very short periods of time.<<ETX>>","PeriodicalId":154914,"journal":{"name":"Proceedings of IEEE Symposium on Electromagnetic Compatibility","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125348227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Measurement and modeling of near- and far-field antenna factor 近场和远场天线系数的测量和建模
Proceedings of IEEE Symposium on Electromagnetic Compatibility Pub Date : 1994-08-22 DOI: 10.1109/ISEMC.1994.385654
R. Herkert, J. Daher, K. P. Ray, B. Subbarao
{"title":"Measurement and modeling of near- and far-field antenna factor","authors":"R. Herkert, J. Daher, K. P. Ray, B. Subbarao","doi":"10.1109/ISEMC.1994.385654","DOIUrl":"https://doi.org/10.1109/ISEMC.1994.385654","url":null,"abstract":"This paper summarizes a recent investigation into the measurement and modeling of antenna factor as a function of separation distance. Measurements were made of coupling and antenna factor (AF) for a standard gain dipole as a function of distance from an identical source. Coupling and AF were also computed using two electromagnetic computer codes to compare the numerical results with each other and with the measurements. The coupling measurements were made in an anechoic chamber using two identical standard gain dipoles at 300 MHz, both with and without a ground plane. In the case with a ground plane, both horizontal and vertical polarizations were examined. Distances were varied to cover from the very near-field to the far-field of the antenna. Measured values of the AF at 300 MHz were frequency scaled to predict the AF at 30 MHz. In addition to the measurements, the Numerical Electromagnetics Code (NEC) Method of Moments and the General Electromagnetic Model for the Analysis of Complex Systems (GEMACS) were used to calculate coupling and AF values for direct comparison with the measured values.<<ETX>>","PeriodicalId":154914,"journal":{"name":"Proceedings of IEEE Symposium on Electromagnetic Compatibility","volume":"44 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120963051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信