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IEEE 1991 International Symposium on Electromagnetic Compatibility最新文献

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Shielding theory (a critical look) 屏蔽理论(批判的眼光)
IEEE 1991 International Symposium on Electromagnetic Compatibility Pub Date : 1991-08-12 DOI: 10.1109/ISEMC.1991.148177
G. Kunkel
{"title":"Shielding theory (a critical look)","authors":"G. Kunkel","doi":"10.1109/ISEMC.1991.148177","DOIUrl":"https://doi.org/10.1109/ISEMC.1991.148177","url":null,"abstract":"During the late 1960s and early 1970s the author taught courses on electromagnetic compatibility (EMC) system design at the Extension Department of UCLA. One of the subjects covered was shielding of EM waves. The theory which was taught is consistent with the theory proposed by H.W. Ott (1976). One of the students took exception to the theory. His comments were that the impedance of the barrier assumes an infinitely thick barrier where the thickness of the barriers on his spacecraft are of finite thickness, and absorption loss is an I/sup 2/R loss, not skin effect. These comments and other comments which the author encountered during 17 years as Chairman of the Technical Committee on Interference Control of the EMC Society of the IEEE are examined.<<ETX>>","PeriodicalId":243730,"journal":{"name":"IEEE 1991 International Symposium on Electromagnetic Compatibility","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127759092","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
Direct prediction of common-mode currents 直接预测共模电流
IEEE 1991 International Symposium on Electromagnetic Compatibility Pub Date : 1991-08-12 DOI: 10.1109/ISEMC.1991.148186
K. Hardin, C. R. Paul, K. Naishadham
{"title":"Direct prediction of common-mode currents","authors":"K. Hardin, C. R. Paul, K. Naishadham","doi":"10.1109/ISEMC.1991.148186","DOIUrl":"https://doi.org/10.1109/ISEMC.1991.148186","url":null,"abstract":"A technique for decomposing a radiating structure into two other structures, a symmetric structure and an asymmetric structure, is given. The combined currents and radiated fields of these two structures are equivalent to those of the original structure. This allows the direct prediction of the portion of the radiated fields due to the common-mode (asymmetric) currents whose emissions often dominate those of the differential-mode (symmetric) currents. Not only does it allow direct prediction of common-mode currents, but it also yields considerable insight into the generation mechanisms for these currents as well as methods for controlling them.<<ETX>>","PeriodicalId":243730,"journal":{"name":"IEEE 1991 International Symposium on Electromagnetic Compatibility","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134549105","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: 19
Development of wide-band and highly sensitive electric field sensor using LiNbO/sub 3/ optical modulator 基于LiNbO/sub - 3/光调制器的宽带高灵敏度电场传感器的研制
IEEE 1991 International Symposium on Electromagnetic Compatibility Pub Date : 1991-08-12 DOI: 10.1109/ISEMC.1991.148234
N. Kuwabara, K. Tajima, F. Amemiya
{"title":"Development of wide-band and highly sensitive electric field sensor using LiNbO/sub 3/ optical modulator","authors":"N. Kuwabara, K. Tajima, F. Amemiya","doi":"10.1109/ISEMC.1991.148234","DOIUrl":"https://doi.org/10.1109/ISEMC.1991.148234","url":null,"abstract":"A Mach-Zehnder interferometer whose half-wave voltage is about 4 V and a YAG laser pumped by a laser diode whose output power is 25 mW are used to improve the sensitivity of a LiNbO/sub 3/ electromagnetic field sensor. The resulting frequency response is almost flat from 100 Hz to 300 MHz and the minimum detectable electric field strength is 1 mV/m at 50 MHz and 0.14 mV/m at 750 MHz. The frequency response of the sensor is analyzed using the moment method, and the calculated results agree with the measured results. The improved sensor can measure an electromagnetic impulse whose peak value is larger than 10 V/m and width is wider than 5 ns.<<ETX>>","PeriodicalId":243730,"journal":{"name":"IEEE 1991 International Symposium on Electromagnetic Compatibility","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133986869","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: 4
The validity of using image plane theory to predict printed circuit board radiation 利用成像平面理论预测印制电路板辐射的有效性
IEEE 1991 International Symposium on Electromagnetic Compatibility Pub Date : 1991-08-12 DOI: 10.1109/ISEMC.1991.148184
T. Hsu
{"title":"The validity of using image plane theory to predict printed circuit board radiation","authors":"T. Hsu","doi":"10.1109/ISEMC.1991.148184","DOIUrl":"https://doi.org/10.1109/ISEMC.1991.148184","url":null,"abstract":"In order to reduce the radiated emissions of a printed circuit board (PCB), a conductive plane is often placed beneath the PCB. Image theory has been used in the literature to explain why conductive planes have this effect. The validity of using image plane theory in analyzing printed circuit boards is questionable because of the finite size of these planes. Some effects of the conductive planes are due to the additional load which these planes put on the source. This effect is not predicted by image theory.<<ETX>>","PeriodicalId":243730,"journal":{"name":"IEEE 1991 International Symposium on Electromagnetic Compatibility","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127614238","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 uniform standards initiative 统一标准倡议
IEEE 1991 International Symposium on Electromagnetic Compatibility Pub Date : 1991-08-12 DOI: 10.1109/ISEMC.1991.148250
R. M. Showers
{"title":"The uniform standards initiative","authors":"R. M. Showers","doi":"10.1109/ISEMC.1991.148250","DOIUrl":"https://doi.org/10.1109/ISEMC.1991.148250","url":null,"abstract":"In the USA two events have occurred (or are occurring) that are of interest: the revision of the military standards and the procedures being adopted by the Federal Communications Commission (FCC) for the measurement of ITE and other devices. Along with this activity there has been some implicit reexamination of traditional EMC measurement procedures. Limit setting procedures have also been under reexamination, but not nearly as extensively. The Accredited Standards Committee C63 has initiated a program whose ultimate objective is to establish uniform test procedures and rationales for setting limits. This effort is being implemented through its direct participation in international, military, FCC. and its own standards efforts. The purpose of this study is to outline the status of the work and indicate the work involved in reaching its overall objective.<<ETX>>","PeriodicalId":243730,"journal":{"name":"IEEE 1991 International Symposium on Electromagnetic Compatibility","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129399556","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
Evaluation of the attenuation provided by a radar absorbing material (RAM) coating on an HF wire rope antenna 对高频钢丝绳天线上的雷达吸收材料(RAM)涂层提供的衰减进行评估
IEEE 1991 International Symposium on Electromagnetic Compatibility Pub Date : 1991-08-12 DOI: 10.1109/ISEMC.1991.148272
G. Gothard
{"title":"Evaluation of the attenuation provided by a radar absorbing material (RAM) coating on an HF wire rope antenna","authors":"G. Gothard","doi":"10.1109/ISEMC.1991.148272","DOIUrl":"https://doi.org/10.1109/ISEMC.1991.148272","url":null,"abstract":"A shipboard electromagnetic interference (EMI) problem is considered. The use of radar absorbent material (RAM) to reduce unintentional X-band (8-12 GHz) radar reflections from HF wire rope antennas is analyzed. An exact series solution for a lossy-coated circular cylinder was developed and used to determine the effectiveness of the various RAM coatings.<<ETX>>","PeriodicalId":243730,"journal":{"name":"IEEE 1991 International Symposium on Electromagnetic Compatibility","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131298437","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: 1
Laboratory exercises in EMC course EMC课程的实验练习
IEEE 1991 International Symposium on Electromagnetic Compatibility Pub Date : 1991-08-12 DOI: 10.1109/ISEMC.1991.148248
A.A. Worshevsky
{"title":"Laboratory exercises in EMC course","authors":"A.A. Worshevsky","doi":"10.1109/ISEMC.1991.148248","DOIUrl":"https://doi.org/10.1109/ISEMC.1991.148248","url":null,"abstract":"An undergraduate electromagnetic compatibility (EMC) course for the electrical engineering profession was established at the Leningrad Shipbuilding Institute (now the Leningrad State University of Ocean Technology) in 1987. The course includes 51 hours of lectures and 34 hours of laboratory experiments. The students are required to perform ten labs on original equipment. Individuality, coupling of labs, comparison of experiments and calculations, and hand construction are basic principles to increase the efficiency of training. The students are required to prove their conclusions based on experiments calculations, and personal computer simulation.<<ETX>>","PeriodicalId":243730,"journal":{"name":"IEEE 1991 International Symposium on Electromagnetic Compatibility","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114850795","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
FCC proposal to utilize industry standards for controlling interference 美国联邦通信委员会提出利用工业标准控制干扰的建议
IEEE 1991 International Symposium on Electromagnetic Compatibility Pub Date : 1991-08-12 DOI: 10.1109/ISEMC.1991.148252
A. Wall, R. Fabina
{"title":"FCC proposal to utilize industry standards for controlling interference","authors":"A. Wall, R. Fabina","doi":"10.1109/ISEMC.1991.148252","DOIUrl":"https://doi.org/10.1109/ISEMC.1991.148252","url":null,"abstract":"The procedures for determining compliance of devices subject to Part 15 of the rules and regulations of the US Federal Communications Commission (FCC) are being updated to reflect, among other things, recent changes to the regulations. The current practice of testing compliance of a Part 15 device is to use, in most instances, an FCC-generated test procedure. Because of recent difficulties in adopting FCC-generated procedures, the Commission staff is working with an industry committee to develop a single, industry-consensus standard for testing compliance of many of the devices subject to Part 15. The background, process. difficulties. implementation, and status of the industry standard are discussed.<<ETX>>","PeriodicalId":243730,"journal":{"name":"IEEE 1991 International Symposium on Electromagnetic Compatibility","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124756356","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
Groundbounce in ASIC's: model and test results ASIC的地弹跳:模型和测试结果
IEEE 1991 International Symposium on Electromagnetic Compatibility Pub Date : 1991-08-12 DOI: 10.1109/ISEMC.1991.148261
L. Díaz-Olavarrieta
{"title":"Groundbounce in ASIC's: model and test results","authors":"L. Díaz-Olavarrieta","doi":"10.1109/ISEMC.1991.148261","DOIUrl":"https://doi.org/10.1109/ISEMC.1991.148261","url":null,"abstract":"Groundbounce is the noise produced by simultaneous switching of drivers in an ASIC, due to excessive current drawn from the power supply at the time of switching. This noise may cause delay and false triggering problems at the functional level, as well as emissions problems due to the fast rise time and amplitude of current spikes induced. Test results which attest to the seriousness of the groundbounce problem in large ASICs are presented. The importance of the positioning of switching drivers as a factor in reducing groundbounce is discussed. The model of groundbounce is detailed to include layout and package parameters, in order to more accurately calculate the effective inductance value to be used for predictions. The results presented correspond to groundbounce voltages measured in one test chip mounted on a PGA package.<<ETX>>","PeriodicalId":243730,"journal":{"name":"IEEE 1991 International Symposium on Electromagnetic Compatibility","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128165482","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
Rules for electromagnetic compatibility of shipboard radioelectronic equipment in USSR 苏联舰载无线电电子设备电磁兼容性规则
IEEE 1991 International Symposium on Electromagnetic Compatibility Pub Date : 1991-08-12 DOI: 10.1109/ISEMC.1991.148259
K.K. Venskauskas, V.V. Krestianinov, S. Mikhailova, A.A. Iljin
{"title":"Rules for electromagnetic compatibility of shipboard radioelectronic equipment in USSR","authors":"K.K. Venskauskas, V.V. Krestianinov, S. Mikhailova, A.A. Iljin","doi":"10.1109/ISEMC.1991.148259","DOIUrl":"https://doi.org/10.1109/ISEMC.1991.148259","url":null,"abstract":"Rules for electromagnetic compatibility (EMC) of shipboard radioelectronic equipment in the USSR are discussed. The existing rules, the regulating document (RD), apply to shipboard radioelectronic and electrical equipment as well as to the ship's topside elements, feeder lines, and antennas. The requirements of this RD. represented in report, apply to the vessels designed, retrofitted, or converted, and cover the entire frequency range allocated for maritime mobile service.<<ETX>>","PeriodicalId":243730,"journal":{"name":"IEEE 1991 International Symposium on Electromagnetic Compatibility","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127070168","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
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