1987 IEEE International Symposium on Electromagnetic Compatibility最新文献

{"title":"A New General Solution to the Field to Wire Coupling and Crosstalk Problems","authors":"J. Perini, A. Adams, M. Miyabayashi, D. Shau","doi":"10.1109/ISEMC.1987.7570785","DOIUrl":"https://doi.org/10.1109/ISEMC.1987.7570785","url":null,"abstract":"","PeriodicalId":443616,"journal":{"name":"1987 IEEE International Symposium on Electromagnetic Compatibility","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115115930","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}

{"title":"A Statistical Approach to EMI - Theory and Experiment Part II","authors":"D. Weiner, G. Capraro","doi":"10.1109/ISEMC.1987.7570815","DOIUrl":"https://doi.org/10.1109/ISEMC.1987.7570815","url":null,"abstract":"With reference to the experiment described in Part 1, the crosstalk and second-order nonlinear transfer function data are analyzed to obtain approximations for the associated probability density functiońs. These are combined to obtain the probability density function for the susceptibility level of the printed circuit board (PCB). Finally, the data related to lighting the light emitting diode (LED) are analyzed for statistical consistency with the theoretically derived susceptibility density function.","PeriodicalId":443616,"journal":{"name":"1987 IEEE International Symposium on Electromagnetic Compatibility","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121112180","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}

{"title":"Effect of Predetection Filtering on Baseband Interference in FDM/FM Systems","authors":"R. Manohar, T. Mizuno","doi":"10.1109/ISEMC.1987.7570789","DOIUrl":"https://doi.org/10.1109/ISEMC.1987.7570789","url":null,"abstract":"This paper addresses the subject of the effect of the characteristics of the receive IF bandpass filter on the baseband inter­ ference in FDM/FM signals. Closed form expressions for the interference spectra in the baseband are derived for the IF filters having rectangular and trapezoidal charac­ teristics. The improvement in the baseband interference due to the truncation of interference spectrum by the IF filter is quantified through numerical examples.","PeriodicalId":443616,"journal":{"name":"1987 IEEE International Symposium on Electromagnetic Compatibility","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124966881","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}

{"title":"Calculating Transmission Line Transients on Personal Computers","authors":"D. Higgins","doi":"10.1109/ISEMC.1987.7570781","DOIUrl":"https://doi.org/10.1109/ISEMC.1987.7570781","url":null,"abstract":"This paper presents calculations of transient EM voltages and currents on a non-uniform transmission line. The emphasis is on demonstrating how such transient response calculations can be efficiently made using personal computers. Results will be presented using both custom-designed programs and commercially available spreadsheets such as Microsoft's ExcelTM.","PeriodicalId":443616,"journal":{"name":"1987 IEEE International Symposium on Electromagnetic Compatibility","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124986322","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}

{"title":"The Surface Magnetic Current and Diffraction of Electromagnetic Waves by a Spherical Cap with Impedance","authors":"T. Sengor","doi":"10.1109/ISEMC.1987.7570818","DOIUrl":"https://doi.org/10.1109/ISEMC.1987.7570818","url":null,"abstract":"Abstract: Surface electric and magnetic currents induced by high-frequency waves on a spherical sheet with arbitrary face impedances are obtained. The influences of several diffraction phenomena on surface currents are given in explicit expressions. Field components of the scattered field are obtained by the terms of surface cur­ rents. The results explain the contribution of surface currents to scattered field components in a quite simple form and may be used in inverse scattering problems.","PeriodicalId":443616,"journal":{"name":"1987 IEEE International Symposium on Electromagnetic Compatibility","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128360085","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}

{"title":"Development of a Full Performance Composite Connector with Long-Term EMI Shielding Properties","authors":"J. Masi, D. Dixon, Maurice P. Avoux","doi":"10.1109/ISEMC.1987.7570768","DOIUrl":"https://doi.org/10.1109/ISEMC.1987.7570768","url":null,"abstract":"","PeriodicalId":443616,"journal":{"name":"1987 IEEE International Symposium on Electromagnetic Compatibility","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130485924","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}

{"title":"A New Look at Coupling to a Cable Above a Ground Plane","authors":"L. Hoeft, J. Hofstra, J. Latino","doi":"10.1109/ISEMC.1987.7570779","DOIUrl":"https://doi.org/10.1109/ISEMC.1987.7570779","url":null,"abstract":"","PeriodicalId":443616,"journal":{"name":"1987 IEEE International Symposium on Electromagnetic Compatibility","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126223216","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}

{"title":"Mathematical Models Used for the Estimation of Radiated Electric Field Amplitudes from Close-Field Measurements","authors":"M. Terrien","doi":"10.1109/ISEMC.1987.7570771","DOIUrl":"https://doi.org/10.1109/ISEMC.1987.7570771","url":null,"abstract":"This paper discusses work done to date in the area of using com­ puter modelling to estim ate radiated field amplitudes. Unlike existing vector techniques used for tuning antenna patterns in phased array systems, this scalar technique is designed for radiated EMI prequalifi­ cation of shielded instruments. These models estim ate the worst-case radiated electric field amplitudes from shielded equipment using a scalar receiver and a hand-held receiving antenna in a laboratory en­ vironment. Background information, a discussion of the modelling technique and results are presented.","PeriodicalId":443616,"journal":{"name":"1987 IEEE International Symposium on Electromagnetic Compatibility","volume":"61 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120999312","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}

{"title":"Critical Analysis of Commercial Power Main Transient Designs","authors":"W. Rhoades","doi":"10.1109/ISEMC.1987.7570806","DOIUrl":"https://doi.org/10.1109/ISEMC.1987.7570806","url":null,"abstract":"T h ere a re tw o co m m o n v iew poin ts f o r t r a n s ie n ts on low vo ltag e (less th a n 1000 vo l ts RMS) pow er m ains . Many sys tem designers b e liev e t h a t h a rm fu l pow er m ain t r an s ie n ts to n o t ex is t as th e non-consp icuous t r a n s ie n t s a re so t im e d e p en d en t th e y a re avo idab le . T hese sy s te m designers b lam e equ ipm en t m a lfu n c tio n s on som e o th e r reason . The o th e r v iew p o in t is f ro m th e r e s e a r c h e r s in E l e c t r o m a g n e t i c C o m p a t ib i l i ty (EMC) f ie ld who be lieve th e re a re h a rm fu l pow er m ain t r a n s ie n t s bu t choose l im its and a t e s t p ro ced u re based upon p a s t ex p e r ien c e no t analysis . T h ere is som e basis fo r b o th v iew po in ts . Today, n ear ly all sy s tem s c o n ta in low pow er y e t high speed se q u e n tia l d ig i ta l logic. A m yriad of eq u ip m en t bes ides c o m p u te rs use p rocesso rs w ith som e form of a m em ory . Thus, a single, p roperly t im e d t r a n s ie n t can c r e a te se r io u s and s o m e t im e s n o n r e c o v e r a b le p ro b lem s when se q u e n tia l c i r c u i ts a re fa lse t r ig g e re d or ch ange logic s t a te . Som e sy s tem s a re in sensis tive to a single t ra n s ie n t due to an a u to m a t ic r e co v e ry f e a tu r e bu t fa il when m ultip le t r a n s ie n t s occu r . One of th e m ost puzzling q u est io n s th e EMC d e s ig n e r s is t h e a m p l i t u d e o f t h e im p u ls e t e s t . M easured pow erm ain c o n d u c ted t r a n s ie n t t e s t in g has proven t h a t fo r any c o m m e rc ia l co s t c o m p e t i t iv e eq u ipm en t, th e re is som e lev e l of t r a n s ie n t s a t which th e eq u ip m en t has som e d e g re e of su sce p t ib i l i ty and th e r e is som e h igher lev e l which will a lw ays m ake th e equ ipm en t fa i l [1]. F o r e x am p le , F igure 1 shows th e m easu red peak am p li tu d e req u ire d fo r a pro d u c t to fa i l . Below 50 v o l ts , no f a i lu r e s o c c u r re d , w h ereas in th e 500 to 2000 volt ra n g e th e p roduc t has 100% fa ilu re . The basic q u est ion is, w h a t is an a c c e p ta b le value? The an sw er is, th e re is no m agic value , only a c o s t e f f e c t iv e design which m ust use d i f f e re n t d a ta and m odel fo r each type of t r a n s ie n t . A lthough n o rm al t e s t eq u ip m en t such as scopes can m easu re line t ra n s ie n ts , sp ec ia l t e s t se tu p s a re requ ired to d e te rm in e th e t ru e sy s tem su sce p t ib i l i ty levels. B ecause o f th e la rg e num ber of co m p an ies worldwide in the pow er m ain t r a n s ie n t p ro te c t io n business, f ie r c e c o m p e t i t io n has c r e a te d h y p e rad v e r t i se m en ts . One must d e te rm in e the t e c h n ic a l i ssues and so lu t io n s v e rsu s f a ls e o r u n n eed ed re q u ire m en ts . F o r exam ple , is subnanosecond p r o t e c t io n respon","PeriodicalId":443616,"journal":{"name":"1987 IEEE International Symposium on Electromagnetic Compatibility","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125168633","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}

{"title":"Quasistatic Electromagnetic Fields at Conductor Edges: The Method of Conformal Mapping","authors":"E. Yung","doi":"10.1109/ISEMC.1987.7570819","DOIUrl":"https://doi.org/10.1109/ISEMC.1987.7570819","url":null,"abstract":"","PeriodicalId":443616,"journal":{"name":"1987 IEEE International Symposium on Electromagnetic Compatibility","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116505104","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}