1986 IEEE International Symposium on Electromagnetic Compatibility最新文献

{"title":"The Work of CISPR Sub-Committee A Radio Interference Measurements and Statistical Methods","authors":"O. Larsson","doi":"10.1109/ISEMC.1986.7568219","DOIUrl":"https://doi.org/10.1109/ISEMC.1986.7568219","url":null,"abstract":"A review is made of the CISPR specifications for radio interference measuring apparatus, in par­ ticular with quasi-peak detectors. Other equip­ ment specified for general measuring methods as artificial mains networks, antennas and the absorbing clamp are also presented. A couple of topics in the present work of Sub-Committee A are mentioned. Terms of reference The terms of reference for Sub-Committee A in­ cludes measuring apparatus and general mea­ suring methods. Statistical methods of evalua­ tion are incorporated as well (but not discussed in this paper). Measuring apparatus CISPR has defined specifications for radio in­ terference measuring apparatus in the fre­ quency bands 10—150 kHz, 0.15—30 MHz, 3 0 -3 0 0 MHz and 3 0 0 -1 000 MHz. The apparaFrequence de repetition des impulsions en hertz Pulse repetition frequency in hertz Figure 1 Pulse response curve for 0.15 30 MHz measuring apparatus tus are in the first place intended to measure impulsive interference such as is generated by electric motors, switches, thyristor controls, ig­ nition systems etc. The oldest of the specifications is the one valid for the frequency range 0.15—30 MHz. It aims at specifying a measuring equipment which as good as possible gives readings corresponding to the subjective annoyance caused by im­ pulsive interference when listening to AM sound broadcasting. The specification is based upon investigations made already in the 1930’s. It was then found that the best way to carry out the measurements was to use a quasi-peak de­ tector with specific time constants. Another basic parameter is the i.f. bandwidth which is standardized to 9 kHz at 6 dB down. Figure 1 gives the specified relation between the sen­ sitivity of the measuring apparatus and the rep­ etition rate of identical impulses, for a constant meter reading. CH2294-7/86/000-0100 $01 -00(C)1986 IEEE 100","PeriodicalId":244612,"journal":{"name":"1986 IEEE International Symposium on Electromagnetic Compatibility","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131151703","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":"Receiver Measurements Near the Noise Floor","authors":"R. Belding","doi":"10.1109/ISEMC.1986.7568204","DOIUrl":"https://doi.org/10.1109/ISEMC.1986.7568204","url":null,"abstract":"","PeriodicalId":244612,"journal":{"name":"1986 IEEE International Symposium on Electromagnetic Compatibility","volume":"24 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133584477","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":"FCC/VDE Radiated Measurements - Potential Differences in Test Results Between Test Sites as a Function of Extrapolation and the Use of Published Antenna Factors","authors":"Albert J. Visek, D. Mis","doi":"10.1109/ISEMC.1986.7568270","DOIUrl":"https://doi.org/10.1109/ISEMC.1986.7568270","url":null,"abstract":"The draft edition to ANSI C63.4 covering open field test sites provides equations and a procedure for performing site calibration on open field test sites. Application of the equations to determine the theoretical site attenuation at different heights and distances and actual site calibration measurements reveal some causes and relationships that can contribute to potential differences in product emission measurements at different sites when measurements are made according to the FCC rules or the VDE rules and in the near future to agencies following the rules in CISPR 22. This paper will explore the problems revealed.","PeriodicalId":244612,"journal":{"name":"1986 IEEE International Symposium on Electromagnetic Compatibility","volume":"218 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124320715","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":"Shielding Characteristics of Honeycomb Filters","authors":"G. Kunkel","doi":"10.1109/ISEMC.1986.7568259","DOIUrl":"https://doi.org/10.1109/ISEMC.1986.7568259","url":null,"abstract":"T h e E M I / R F I s h i e l d i n g p r o v i d e d by h o n e y c o m b f i l t e r s are a f u n c t i o n of ma ny variables. These variables include the cell size of the honeycomb material, the thickness, t h e h o n e y c o m b m a t e r i a l c o m p o s i t i o n a n d fabrication methods, as well as the impedance between the honeycomb material and the frame, and bet w e e n the fr ame and the chassis. The s e l e c t i o n of the v a r i a b l e s u s e d ( in the fabrication of the filters is usu al ly dictated by cost an d/or c o n v e n i e n c e p e r t a i n i n g to f a b r i c a t i o n methods, at the expense of the shielding effectiveness of the filter. This p a p e r e v a l u a t e s th e v a r i o u s f a b r i c a t i o n met h o d s used in the m a n u f a c t u r e of filters , some testing to s u b s t a n t i a t e the f a b r i c a t i o n methods evaluated and specific conclusions.","PeriodicalId":244612,"journal":{"name":"1986 IEEE International Symposium on Electromagnetic Compatibility","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114195997","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":"Work and Task of Sub-Committee E of CISPR","authors":"E. Nano","doi":"10.1109/ISEMC.1986.7568223","DOIUrl":"https://doi.org/10.1109/ISEMC.1986.7568223","url":null,"abstract":"","PeriodicalId":244612,"journal":{"name":"1986 IEEE International Symposium on Electromagnetic Compatibility","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115059867","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":"Combiner Networks for High Speed, High Density Integrated Circuit Susceptibility Testing","authors":"J. Daher, J. P. Rohrbaugh","doi":"10.1109/ISEMC.1986.7568229","DOIUrl":"https://doi.org/10.1109/ISEMC.1986.7568229","url":null,"abstract":"Table 1. This paper describes various techniques which have been developed for combining high speed digital signals with RF signals for use in measuring the susceptibility characteristics of High Speed, High Density (HSHD) integrated circuits (IC's). Six different combiner networks are evaluated in terms of pin applicability, frequency range, bandwidth, RF-to-digital port isolation, and load sensitivity. This work was sponsored under RADC Contract F30602-85-C-0088.","PeriodicalId":244612,"journal":{"name":"1986 IEEE International Symposium on Electromagnetic Compatibility","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125492312","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":"Modifications Needed to Improve MIL-STD-462 Test Method CS03","authors":"Robert G. Siefker","doi":"10.1109/ISEMC.1986.7568205","DOIUrl":"https://doi.org/10.1109/ISEMC.1986.7568205","url":null,"abstract":"M i l i t a r y r a d io r e c e i v e r s a r e r e q u i r e d by MIL-STD-461 t o comply w ith r e q u i re m e n ts CS03 ( In te rm odula tion) , CS04 (Rejection of Undesired Signals) and CS05 (Cross Modulation). Each of these requirements appears to t e s t a p o t e n t i a l l y important s u s c e p t i b i l i t y c h a r a c t e r i s t i c o f radio r e c e iv e rs . The implementation of Test Method CS03, p rescribed in MIL-STD-462, does not accomplish the intended t e s t d e m o n s t r a t io n of in t e r m o d u la t i o n c h a r a c t e r i s t i c s . In the ea r ly days of rad io , rece ivers used p a ra l le l tuned c i r c u i t s to e s ta b l i s h s e l e c t i v i t y and d i r e c t de tec t ion of the amplitude modulated signal in to an earphone. These \"c rys ta l se t s \" as they were known were s t i l l popular in to the middle of t h i s century among boys and hobbyists , but the poor s e n s i t i v i t y of the c ry s ta l se t soon made signal am plif ica t ion p r io r to envelope d e tec t ion d e s i ra b le . For many y e a r s , the prede tec t ion am plif ica t ion was performed a t the tuned frequency of th e rad io and some rece ive rs had as many as th ree or four tuned am p lif ie r s tages in cascade. The complexity of tuning these rece ive rs was inc re d ib le and often a bewildering array of \"trimming\" or f ine tuning con tro ls occupied the receiver f ron t panel. These tuned radio frequency or TRF rece ive rs performed well but had complex in terna l mechanical coupling sys tem s t o keep a l l o f th e tu n in g s t a g e s in synchronism. In 1918, Edwin Armstrong revolu t ion ized radio receiving with the invention of the superheterodyne p r in c ip le . In a superheterodyne, the received signal i s immediately combined or \"mixed\" with a tuneable o s c i l l a t o r s ig n a l . The output of the \"mixer\" i s passed through a s e r ie s of fixed tuned am plif ie r s ta g e s , which s e le c t the mixing product to be am plif ied . These fixed tuned s tages operate at what i s known as the intermediate frequency, or IF, and c o l l e c t iv e ly form what has come to be ca l led the \"IF s t r i p \" . The ouptut of the IF s t r i p i s d e tec ted , am p l i f i e d and p ro c e s se d in w ha tever manner i s appropr ia te to the rece iver type . The f a c t t h a t the IF i s a f ix e d f requency makes p o s s i b l e th e o p t i m i z a t i o n of g a i n , bandpass f i l t e r c h a r a c te r i z a t i o n , s e l e c t i v i t y , e t c . In a d d i t io n , the \"down conversion\" of high frequency s ig n a ls , makes p o s s i b l e th e r e c e p t i o n o f s i g n a l s a t frequencies much higher than might have otherwise been poss ib le s ince the IF i s normally much lower in frequency than the received frequency. The superheterodyne p r in c ip le i s probably the g re a te s t s ing le advancement in radio technology and i s used in almost every radio and radar system in ex is ten","PeriodicalId":244612,"journal":{"name":"1986 IEEE International Symposium on Electromagnetic Compatibility","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122176221","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":"Electromagnetic Field Distribution and Frequency Response for EMP Excitation of an S-280 EMP Shelter","authors":"R. S. Collier, P. Papazian, P. McKenna, R. Perala","doi":"10.1109/ISEMC.1986.7568278","DOIUrl":"https://doi.org/10.1109/ISEMC.1986.7568278","url":null,"abstract":"The electromagnetic field response has been calculated for an S-280 shelter with both resistive and inductive door seam impedances in an NEMP environment. Peak field distributions were calculated throughout the shelter showing the greatest amplitude near the seams. The frequency response, calculated at various points throughout the shelter show a clear delineation between high frequency propagating modes and lower frequency evanescent modes. The propagating modes start with the lowest frequency near the fundamental resonance mode of the shelter. The peaks of the shelter resonance spectrum dominate the high frequency range.","PeriodicalId":244612,"journal":{"name":"1986 IEEE International Symposium on Electromagnetic Compatibility","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128527442","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 Role of Site Geometry in Metric Wave Radiation Testing","authors":"T. Dvorak","doi":"10.1109/ISEMC.1986.7568266","DOIUrl":"https://doi.org/10.1109/ISEMC.1986.7568266","url":null,"abstract":"","PeriodicalId":244612,"journal":{"name":"1986 IEEE International Symposium on Electromagnetic Compatibility","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127350298","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":"How Big a Hole is Allowable in a Shield - Theory and Experiment","authors":"L. Hoeft","doi":"10.1109/ISEMC.1986.7568209","DOIUrl":"https://doi.org/10.1109/ISEMC.1986.7568209","url":null,"abstract":"","PeriodicalId":244612,"journal":{"name":"1986 IEEE International Symposium on Electromagnetic Compatibility","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126877204","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}