Pub Date : 1992-01-01DOI: 10.1109/ISEMC.1992.626082
D. Gerke
{"title":"Electric field levels around a typical amateur radio station","authors":"D. Gerke","doi":"10.1109/ISEMC.1992.626082","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626082","url":null,"abstract":"","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"66 1","pages":"223-225"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90470338","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}
Pub Date : 1992-01-01DOI: 10.1109/ISEMC.1992.626087
B. Keeney
This paper will present a methodology for evaluating effective relative permittivity using a Time Domain Relectometer (TDR). Though the concept of using a TDR to measure permittivity is not new, it has not become widely known and accepted. It will be shown that reasonable results can be obtained with this method and that the values obtained for relative permittivity can be used with excellent results when used in the proper closed form equations or modeling method. This method is particularly useful when processes, as in present day laminated circuit boards, have had an impact on the effective permittivity. In these cases using published values or using conventional methods for determining permittivity can lead to errors in computations for characteristic impedance.
{"title":"A time domain reflectometry technique to determine effective permittivity in lossless transmission lines","authors":"B. Keeney","doi":"10.1109/ISEMC.1992.626087","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626087","url":null,"abstract":"This paper will present a methodology for evaluating effective relative permittivity using a Time Domain Relectometer (TDR). Though the concept of using a TDR to measure permittivity is not new, it has not become widely known and accepted. It will be shown that reasonable results can be obtained with this method and that the values obtained for relative permittivity can be used with excellent results when used in the proper closed form equations or modeling method. This method is particularly useful when processes, as in present day laminated circuit boards, have had an impact on the effective permittivity. In these cases using published values or using conventional methods for determining permittivity can lead to errors in computations for characteristic impedance.","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"2015 1","pages":"243-246"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86906156","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}
Pub Date : 1992-01-01DOI: 10.1109/ISEMC.1992.626071
S. Kubina, C. Trueman
This paper outlines the graduate degrees and programs available at Concordia, and the course offerings for students interested in electromagnetics. "Techniques in Electromagnetic Compatibility" provides a broad, comprehensive introduction to EMC problems, analysis techniques, instrumentation and solutions at the graduate level. It is also aimed at working engineers who encounter practical EMC problems, which they describe in the course and provide motivation and realism to the course content. The lecture segment of the course covers the essential topics, and is followed by a series of student project seminars. Contact with modern measurement requirements and instrumentation is provided with demonstrations and site visits. Historical Background Educational programs in Electromagnetic Compatibility tend to have special characteristics, which are best understood in the light of their historical development and the local demands and resources which shape objectives and content. Concordia University was created in 1974 from the amalgamation of Loyola College and Sir George Williams University. At the time of amalgamation, the authors were involved in the development of an undergraduate electrical engineering curriculum at Loyola which had strong links to the local industrial community and in an initial research program for the development of EMC prediction techniques [ 11 for avionics systems. After amalgamation, the research activity was extended to the application of computational electromagnetics to the modelling of radiation and coupling problems for complex structures and special problems such as the interaction of broadcast antennas and power lines [2] and specific aerospace projects [3]. The scope of this activity and the size of the research team became sufficient for the EMC Laboratory lo be recognized as such. At the same time the graduate program in electromagnetics was strengthened to provide a coherent set of relevant courses for graduate students. During 1985 an opportunity presented itself for the extended visit of Dr. Andrew Marvin of York University to Concordia, and it was most opportune to exploit his experience and expertise for the organization of the first EMC course [4] in Quebec. This course has evolved somewhat since, but continues to be offered on a yearly basis and provides, together with the EMC-related research activity, a focal point for EMC graduate interest. Its present content and emphasis is best understood from the perspective of the graduate program requirements at Concordia.
本文概述了康考迪亚大学提供的研究生学位和课程，以及为对电磁学感兴趣的学生提供的课程。“电磁兼容技术”提供了一个广泛的，全面的介绍EMC问题，分析技术，仪器和解决方案的研究生水平。它也针对遇到实际EMC问题的工作工程师，他们在课程中描述这些问题，并为课程内容提供动力和现实性。课程的讲座部分涵盖了基本主题，随后是一系列学生专题研讨会。接触现代测量要求和仪表提供示范和网站访问。历史背景电磁兼容性教育课程往往具有特殊性，最好根据其历史发展和当地需求和资源来理解，这些需求和资源形成了目标和内容。康科迪亚大学成立于1974年的合并罗耀拉大学和乔治·威廉姆斯爵士大学。在合并期间，作者参与了洛约拉大学本科电气工程课程的开发，该课程与当地工业界有着密切的联系，并参与了航空电子系统EMC预测技术开发的初步研究计划[11]。合并后，研究活动扩展到计算电磁学在复杂结构和特殊问题(如广播天线和电力线的相互作用[2]和特定航空航天项目[3])的辐射和耦合问题建模中的应用。这项活动的范围和研究小组的规模足以使EMC实验室得到认可。同时，加强了电磁学研究生课程，为研究生提供了一套连贯的相关课程。1985年期间，约克大学的安德鲁·马文博士(Dr. Andrew Marvin)有机会对康考迪亚进行长期访问，这是利用他的经验和专业知识在魁北克组织第一个EMC课程的最佳时机[4]。自那以后，这门课程有所发展，但仍然每年提供一次，并与EMC相关的研究活动一起，成为EMC毕业生感兴趣的焦点。它目前的内容和重点最好从康考迪亚大学研究生课程要求的角度来理解。
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Pub Date : 1992-01-01DOI: 10.1109/ISEMC.1992.626078
D. Boston, D. J. Reeb
{"title":"Designing Electromagnetic Interference Protection For Test Facilities In New Buildings","authors":"D. Boston, D. J. Reeb","doi":"10.1109/ISEMC.1992.626078","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626078","url":null,"abstract":"","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"32 1","pages":"204-205"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82611220","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}
Pub Date : 1992-01-01DOI: 10.1109/ISEMC.1992.626054
E. Joffe, J. Gevan
In the I W bade, high intensity RF (HIRF) scurizs are rapidly increasing, hwh in p v e r and in mimhr. Among them we the high pnwer & m w m b m W autiom, prat ing in the HF band. New gemation military, as well as commercial "tlv-by-wm" nircraft, with their incremd m p i b i l i t y to HIRF, on the one hand, and the witicality of the avionics, on the ah, are a sou~iie of concern to aircraft k i g w r s nnrli295rs. ne problem is interuified far the small fighter aircraft, such as the F16, iwlf k i n g n "flyby wire" aircrnft, and its dimensions king: within the resonant hand, in HF Any externni aler*romagnetic w a w ~ c q l i n g to avionics kegins with the iuteraction of the external incident eltaromagnetic w a w with the "victim" aircraft fW?lW The publem uf external q l i n g of electromagnetic waves to the metal dnidtre of an airrrnft is disnwed in this pelzr, Themetical data is pesmted, and a ~ori ipisou Lmtween results of oarpling analysis, using varivus analpical methods, incltiding Methni of Mmnents IM-0-M) are p a n t e d 111trodwti~x1
在世界范围内，高强度射频(HIRF)的病例正在迅速增加，其中在中国和中国。其中高功率、高功率、高功率、高功率、高功率、高功率、高功率、高功率、高功率、高功率、高功率，工作在高频频段。新一代的军用和商用“遥控”飞行器，一方面是它们不断增加的飞行速度，一方面是它们对HIRF的依赖，另一方面是它们的航空电子设备的可靠性，这些都是它们关注的主要问题。一个问题是对小型战斗机，如F16，在“飞掠线”飞机，它的尺寸王:谐振手内，在HF任何外部入射电磁w w w w ~ c q q在航空电子设备与外部入射电磁w w w与“受害者”飞机fW的相互作用?本文揭示了电磁波对大气介质金属中心的外散射问题，给出了相关的理论数据，并利用各种解析方法(包括矩量法(m -0- m))进行了多波分析，得到了多波耦合分析的结果
{"title":"External Interaction Of High Fraquancy Electromagentic Waves With Aircraft fuselage","authors":"E. Joffe, J. Gevan","doi":"10.1109/ISEMC.1992.626054","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626054","url":null,"abstract":"In the I W bade, high intensity RF (HIRF) scurizs are rapidly increasing, hwh in p v e r and in mimhr. Among them we the high pnwer & m w m b m W autiom, prat ing in the HF band. New gemation military, as well as commercial \"tlv-by-wm\" nircraft, with their incremd m p i b i l i t y to HIRF, on the one hand, and the witicality of the avionics, on the ah, are a sou~iie of concern to aircraft k i g w r s nnrli295rs. ne problem is interuified far the small fighter aircraft, such as the F16, iwlf k i n g n \"flyby wire\" aircrnft, and its dimensions king: within the resonant hand, in HF Any externni aler*romagnetic w a w ~ c q l i n g to avionics kegins with the iuteraction of the external incident eltaromagnetic w a w with the \"victim\" aircraft fW?lW The publem uf external q l i n g of electromagnetic waves to the metal dnidtre of an airrrnft is disnwed in this pelzr, Themetical data is pesmted, and a ~ori ipisou Lmtween results of oarpling analysis, using varivus analpical methods, incltiding Methni of Mmnents IM-0-M) are p a n t e d 111trodwti~x1","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"17 1","pages":"93-97"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84713833","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}
Pub Date : 1992-01-01DOI: 10.1109/ISEMC.1992.626117
M. Masugi, K. Murakawa, Nobuo Kuwabara, F. Amemiya
{"title":"Measurement And Analysis Of Electromagnetic Pulses Caused By Electrostatic Dischrage","authors":"M. Masugi, K. Murakawa, Nobuo Kuwabara, F. Amemiya","doi":"10.1109/ISEMC.1992.626117","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626117","url":null,"abstract":"","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"35 1","pages":"361-365"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83734938","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}
Pub Date : 1992-01-01DOI: 10.1109/ISEMC.1992.626040
L. Halme, J. Annanpalo, T. Kilpinen
The intention of this paper is to study and explain on which conditions different approximations can be used in shielding attenuation calculations of metal boxes or rooms. Maxwell's equations are recalled as the basis of the screening theory. Both the method using the quasistationary assumption and the method using reflection and absorption loss are shown to be based on Maxwel's equations and the boundary conditions. The principles of both methods are annexed. Results of both methods are compared with results calculated using Maxwell's equations directly. This comparison and discussion on the effect of practical details leads to conclusions on the choice of the correct method.
{"title":"Screening theory of metallic enclosures","authors":"L. Halme, J. Annanpalo, T. Kilpinen","doi":"10.1109/ISEMC.1992.626040","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626040","url":null,"abstract":"The intention of this paper is to study and explain on which conditions different approximations can be used in shielding attenuation calculations of metal boxes or rooms. Maxwell's equations are recalled as the basis of the screening theory. Both the method using the quasistationary assumption and the method using reflection and absorption loss are shown to be based on Maxwel's equations and the boundary conditions. The principles of both methods are annexed. Results of both methods are compared with results calculated using Maxwell's equations directly. This comparison and discussion on the effect of practical details leads to conclusions on the choice of the correct method.","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"4 1","pages":"6-14"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90302303","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}
Pub Date : 1992-01-01DOI: 10.1109/ISEMC.1992.626052
A. Drozd, V. Choo, A. Rich, B. Bowles
This paper discusses the development of a prototype Artificial Intelligence/Expert System (AI/ES) capabilit t o perform I i nea r/non I i near frequency ma nag eme n t 8 .e., assignment and confliction-deconfliction analysis) and identify optimum EM1 mitigation techniques to achieve total EMC under certain conditions, for a complex system o f equipments. This new capability adapts AVES technologies and exploits powerful modeling, simulation, analysis, prediction, and monitoring features available within such technologies. The EMC en ineering models are integrated into an AVES "shell" wxich permits the specification of certain boundary conditions using rules, procedures, formulas, and constraint data that govern relevant electromagnetic interactions and effects. This paper also discusses a possible thrust to integrate problem solving tools and techniques with a single AVES shell.
{"title":"Frequency Management And EMC Decision Making Using Artificial Intelligence/expert System Technology","authors":"A. Drozd, V. Choo, A. Rich, B. Bowles","doi":"10.1109/ISEMC.1992.626052","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626052","url":null,"abstract":"This paper discusses the development of a prototype Artificial Intelligence/Expert System (AI/ES) capabilit t o perform I i nea r/non I i near frequency ma nag eme n t 8 .e., assignment and confliction-deconfliction analysis) and identify optimum EM1 mitigation techniques to achieve total EMC under certain conditions, for a complex system o f equipments. This new capability adapts AVES technologies and exploits powerful modeling, simulation, analysis, prediction, and monitoring features available within such technologies. The EMC en ineering models are integrated into an AVES \"shell\" wxich permits the specification of certain boundary conditions using rules, procedures, formulas, and constraint data that govern relevant electromagnetic interactions and effects. This paper also discusses a possible thrust to integrate problem solving tools and techniques with a single AVES shell.","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"84 1","pages":"77-85"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83912308","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}
Pub Date : 1992-01-01DOI: 10.1109/ISEMC.1992.626157
H. Zaghloul
This paper shows that there is a solution for the vector Helmholtz equation in spherical coordinates that does not fit in the: general expression given by Hansen [l], Stratton [5] and Chandrasekhar and Kendall [2]. This paper finds a more general solution of the vector Helmholtz equation in spherical coordinates. This is applied to force-free magnetic fields in spherical coordinates.
本文证明了矢量亥姆霍兹方程在球坐标下存在不符合Hansen[1]、Stratton[5]和Chandrasekhar and Kendall[2]给出的一般表达式的解。本文给出了矢量亥姆霍兹方程在球坐标下的一种更一般的解。这适用于球坐标下的无力磁场。
{"title":"A general solution for force-free magnetic fields in spherical coordinates","authors":"H. Zaghloul","doi":"10.1109/ISEMC.1992.626157","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626157","url":null,"abstract":"This paper shows that there is a solution for the vector Helmholtz equation in spherical coordinates that does not fit in the: general expression given by Hansen [l], Stratton [5] and Chandrasekhar and Kendall [2]. This paper finds a more general solution of the vector Helmholtz equation in spherical coordinates. This is applied to force-free magnetic fields in spherical coordinates.","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"1 1","pages":"513-514"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73542060","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}
Pub Date : 1992-01-01DOI: 10.1109/ISEMC.1992.626156
E. Marx
Moving point charges generate nonsinusoidal electromagnetic fields, and the motion of the charges is in turn determined by the fields. The full dynamical problem includes radiation reaction, which is discussed here. Nonsinusoidal fields are also associated with relativistic quantum mechanics, where the notion of causality is extended. Cerenkov radiation and the Aharonov-Bohm effect are two other topics.
{"title":"Point charges, radidiation reaction, and quantum mechanics","authors":"E. Marx","doi":"10.1109/ISEMC.1992.626156","DOIUrl":"https://doi.org/10.1109/ISEMC.1992.626156","url":null,"abstract":"Moving point charges generate nonsinusoidal electromagnetic fields, and the motion of the charges is in turn determined by the fields. The full dynamical problem includes radiation reaction, which is discussed here. Nonsinusoidal fields are also associated with relativistic quantum mechanics, where the notion of causality is extended. Cerenkov radiation and the Aharonov-Bohm effect are two other topics.","PeriodicalId":93568,"journal":{"name":"IEEE International Symposium on Electromagnetic Compatibility : [proceedings]. IEEE International Symposium on Electromagnetic Compatibility","volume":"42 1","pages":"508-512"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85807451","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}
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