Pub Date : 2003-05-16DOI: 10.1109/ICSMC2.2003.1428290
M. Heidemann, H. Garbe
TEM waveguides are widely used for radiated emission and immunity testing of small EUTs. Several standards use product specific test setups with TEM waveguides. To support these TEM waveguide applications, IEC has now published the international basic standard IEC 61000-4-20 on EMC testing and measurement techniques using TEM waveguides. This article summarizes the standard, describes the validation procedure of a GTEM cell and the emission testing of a small EUT
{"title":"Using TEM waveguides according to the new IEC 61000-4-20","authors":"M. Heidemann, H. Garbe","doi":"10.1109/ICSMC2.2003.1428290","DOIUrl":"https://doi.org/10.1109/ICSMC2.2003.1428290","url":null,"abstract":"TEM waveguides are widely used for radiated emission and immunity testing of small EUTs. Several standards use product specific test setups with TEM waveguides. To support these TEM waveguide applications, IEC has now published the international basic standard IEC 61000-4-20 on EMC testing and measurement techniques using TEM waveguides. This article summarizes the standard, describes the validation procedure of a GTEM cell and the emission testing of a small EUT","PeriodicalId":272545,"journal":{"name":"2003 IEEE International Symposium on Electromagnetic Compatibility, 2003. EMC '03.","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131538963","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 : 2003-05-16DOI: 10.1109/ICSMC2.2003.1428277
M. Netzer
An environmental survey for local multipoint distribution service (LMDS) and wireless local loops (WLL) subscriber and base was performed for the largest cellular communications carrier in Israel - Cellcom Israel. The survey details potential environmental effects for man, ordnance (no radiation hazards), medical, aviation and industrial electronics and radiation hazards for fuel and chemicals (no radiation hazards). This paper covers risk subjects that include human exposure, ordnance, fuel and electronics
{"title":"Radiation safety and environmental effects around LMDS and WLL subscriber terminal and base stations","authors":"M. Netzer","doi":"10.1109/ICSMC2.2003.1428277","DOIUrl":"https://doi.org/10.1109/ICSMC2.2003.1428277","url":null,"abstract":"An environmental survey for local multipoint distribution service (LMDS) and wireless local loops (WLL) subscriber and base was performed for the largest cellular communications carrier in Israel - Cellcom Israel. The survey details potential environmental effects for man, ordnance (no radiation hazards), medical, aviation and industrial electronics and radiation hazards for fuel and chemicals (no radiation hazards). This paper covers risk subjects that include human exposure, ordnance, fuel and electronics","PeriodicalId":272545,"journal":{"name":"2003 IEEE International Symposium on Electromagnetic Compatibility, 2003. EMC '03.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124331934","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 : 2003-05-16DOI: 10.1109/ICSMC2.2003.1428189
K. Malaric, J. Bartolić
Distribution of the currents on septum inside the GTEM-cell directly influences the distribution of electric and magnetic field. The resistors, which are placed on the septum, are used for matching the characteristic impedance of the structure (50 Omega). Their influence is important for frequencies below 100 MHz. Computer modeling of the current flow prior to the building of the GTEM-cell is necessary. The modeling was done using a computer program "Microwave office 2000". The position of the resistors on the edges of the septum was shown to give better VSWR than if they are placed in the center of the septum
{"title":"Distribution of currents on septum in GTEM-cell depending on the resistor position","authors":"K. Malaric, J. Bartolić","doi":"10.1109/ICSMC2.2003.1428189","DOIUrl":"https://doi.org/10.1109/ICSMC2.2003.1428189","url":null,"abstract":"Distribution of the currents on septum inside the GTEM-cell directly influences the distribution of electric and magnetic field. The resistors, which are placed on the septum, are used for matching the characteristic impedance of the structure (50 Omega). Their influence is important for frequencies below 100 MHz. Computer modeling of the current flow prior to the building of the GTEM-cell is necessary. The modeling was done using a computer program \"Microwave office 2000\". The position of the resistors on the edges of the septum was shown to give better VSWR than if they are placed in the center of the septum","PeriodicalId":272545,"journal":{"name":"2003 IEEE International Symposium on Electromagnetic Compatibility, 2003. EMC '03.","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133973368","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 : 2003-05-16DOI: 10.1109/ICSMC2.2003.1428257
Maolin Wu, X. Cui
When the switches were operated, the transient overvoltage will be caused on the bus bar in substation. If the wide frequency model of the potential transformer (PT) or the coupling capacitor voltage transformer (CCVT) was acquired, the interference voltage in the secondary circuits caused by the transient overvoltage could be predicted. In the paper, a modified transfer function synthesis method is presented. After the transfer characteristic of the PT or CCVT is measured, the wide frequency model of the PT or CCVT can be set up with the synthesis method. The method is simple and effective
{"title":"Wide frequency model for transfer function of potential transformer in substation","authors":"Maolin Wu, X. Cui","doi":"10.1109/ICSMC2.2003.1428257","DOIUrl":"https://doi.org/10.1109/ICSMC2.2003.1428257","url":null,"abstract":"When the switches were operated, the transient overvoltage will be caused on the bus bar in substation. If the wide frequency model of the potential transformer (PT) or the coupling capacitor voltage transformer (CCVT) was acquired, the interference voltage in the secondary circuits caused by the transient overvoltage could be predicted. In the paper, a modified transfer function synthesis method is presented. After the transfer characteristic of the PT or CCVT is measured, the wide frequency model of the PT or CCVT can be set up with the synthesis method. The method is simple and effective","PeriodicalId":272545,"journal":{"name":"2003 IEEE International Symposium on Electromagnetic Compatibility, 2003. EMC '03.","volume":"148 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122573831","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 : 2003-05-16DOI: 10.1109/ICSMC2.2003.1428195
Jong Hwa Kwon, H.H. Park, Hyung-Do Choi
This paper proposes the new correlation algorithm between the fully anechoic chamber (FAC) and the test facilities with ground plane such as open area test site (OATS), semi-anechoic chamber (SAC), etc. in order to use the FAC as an alternative test facility. The approach is to model the EUT as an equivalent set of multipoles. Assuming the EUT is electrically small, only the initial multipole moments, the electric and magnetic dipole terms, need be retained. A sequence of FAC measurements is then used to determine the equivalent EUT dipole moments and relative phases. The dipole model then allows one to simulate the radiated emission from EUT over a ground screen. Thus, emission measurements over an OATS as called for by various standards may be simulated. Such equivalent dipole modeling of an unknown source object has previously been successfully developed for the single/double port TEM waveguide. This paper reviews the basics of the multipole model as it relates to FAC, details various measurement schemes appropriate to FAC, and presents the results of measurements at both FAC and SAC in order to verify the proposed correlation algorithm
{"title":"New correlation algorithm between FAC and OATS/SAC","authors":"Jong Hwa Kwon, H.H. Park, Hyung-Do Choi","doi":"10.1109/ICSMC2.2003.1428195","DOIUrl":"https://doi.org/10.1109/ICSMC2.2003.1428195","url":null,"abstract":"This paper proposes the new correlation algorithm between the fully anechoic chamber (FAC) and the test facilities with ground plane such as open area test site (OATS), semi-anechoic chamber (SAC), etc. in order to use the FAC as an alternative test facility. The approach is to model the EUT as an equivalent set of multipoles. Assuming the EUT is electrically small, only the initial multipole moments, the electric and magnetic dipole terms, need be retained. A sequence of FAC measurements is then used to determine the equivalent EUT dipole moments and relative phases. The dipole model then allows one to simulate the radiated emission from EUT over a ground screen. Thus, emission measurements over an OATS as called for by various standards may be simulated. Such equivalent dipole modeling of an unknown source object has previously been successfully developed for the single/double port TEM waveguide. This paper reviews the basics of the multipole model as it relates to FAC, details various measurement schemes appropriate to FAC, and presents the results of measurements at both FAC and SAC in order to verify the proposed correlation algorithm","PeriodicalId":272545,"journal":{"name":"2003 IEEE International Symposium on Electromagnetic Compatibility, 2003. EMC '03.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129257325","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 : 2003-05-16DOI: 10.1109/ICSMC2.2003.1428295
K. Nakamura, Alrijadjis, J. Wang, O. Fujiwara
It is well-known that the frequencies of radiated peak emissions due to the ground bounce of a printed circuit board (PCB) are related to the resonance frequencies of the input impedance between the power and ground planes (PCB input impedance), while their correspondence relationship is unclear. In this paper, we investigated the quantitative relationship between the frequencies of peak emissions radiated from a PCB and the resonance resistances of the PCB impedance from measurement and finite-difference time-domain (FDTD) analysis. As a result, we found that the ratio of squared electric far-fields at the PCB resonance frequencies corresponds to the ratio of radiated resonance power. This finding leads to the conclusion that the radiated peak emission frequency can be predicted from PCB resonance resistances and the internal resistance of the PCB excitation source
{"title":"Frequency prediction of maximum radiated emission due to ground-bounce from resonance resistances of PCB power-ground planes","authors":"K. Nakamura, Alrijadjis, J. Wang, O. Fujiwara","doi":"10.1109/ICSMC2.2003.1428295","DOIUrl":"https://doi.org/10.1109/ICSMC2.2003.1428295","url":null,"abstract":"It is well-known that the frequencies of radiated peak emissions due to the ground bounce of a printed circuit board (PCB) are related to the resonance frequencies of the input impedance between the power and ground planes (PCB input impedance), while their correspondence relationship is unclear. In this paper, we investigated the quantitative relationship between the frequencies of peak emissions radiated from a PCB and the resonance resistances of the PCB impedance from measurement and finite-difference time-domain (FDTD) analysis. As a result, we found that the ratio of squared electric far-fields at the PCB resonance frequencies corresponds to the ratio of radiated resonance power. This finding leads to the conclusion that the radiated peak emission frequency can be predicted from PCB resonance resistances and the internal resistance of the PCB excitation source","PeriodicalId":272545,"journal":{"name":"2003 IEEE International Symposium on Electromagnetic Compatibility, 2003. EMC '03.","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116935545","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 : 2003-05-16DOI: 10.1109/ICSMC2.2003.1428285
M. Filho, C. Sartori, M.C. Costa, Á. Dietrich, J. Cardoso
This work shows an evaluation methodology for the occurrence of electromagnetic interference in signaling and control equipment of a DC electrified railway under contingency conditions in which the traction rectifying unit works with 6 pulses instead of the 12 pulses of its normal operation. Thus, electromagnetic interference can result from the direct interaction of the magnetic fields close to the rails as well as the resultant induction in the cables that interconnect the signaling and control equipment
{"title":"Evaluation of electromagnetic interference from railway electric power system harmonics","authors":"M. Filho, C. Sartori, M.C. Costa, Á. Dietrich, J. Cardoso","doi":"10.1109/ICSMC2.2003.1428285","DOIUrl":"https://doi.org/10.1109/ICSMC2.2003.1428285","url":null,"abstract":"This work shows an evaluation methodology for the occurrence of electromagnetic interference in signaling and control equipment of a DC electrified railway under contingency conditions in which the traction rectifying unit works with 6 pulses instead of the 12 pulses of its normal operation. Thus, electromagnetic interference can result from the direct interaction of the magnetic fields close to the rails as well as the resultant induction in the cables that interconnect the signaling and control equipment","PeriodicalId":272545,"journal":{"name":"2003 IEEE International Symposium on Electromagnetic Compatibility, 2003. EMC '03.","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115753417","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 : 2003-05-16DOI: 10.1109/ICSMC2.2003.1428316
W. Machczyński
Many theoretical approaches have been made in order to find simple solution for the quasistationary electromagnetic field of a horizontal conductor over a semiinfinite conducting solid. The solution is not however satisfactory in case of conductors located in the vicinity of a conducting plate of finite thickness. The paper presents an approach to EMI problems for conductors located parallel to the conducting plane shield of small thickness comparable with the depth of penetration of the electromagnetic wave at the frequency of 50 Hz. Results of the analysis can be applied to calculating screening effects of conducting walls and housings. The considerations presented are based on assumptions that the permeability of the steel plate is constant, the radius of the conductor is small compared with the height of the conductor above the plate and that the system examined is infinitely long in direction of the conductor. The exemplary calculation is presented in the paper
{"title":"Screening effect of a thin conducting plane shield under quasi-stationary conditions","authors":"W. Machczyński","doi":"10.1109/ICSMC2.2003.1428316","DOIUrl":"https://doi.org/10.1109/ICSMC2.2003.1428316","url":null,"abstract":"Many theoretical approaches have been made in order to find simple solution for the quasistationary electromagnetic field of a horizontal conductor over a semiinfinite conducting solid. The solution is not however satisfactory in case of conductors located in the vicinity of a conducting plate of finite thickness. The paper presents an approach to EMI problems for conductors located parallel to the conducting plane shield of small thickness comparable with the depth of penetration of the electromagnetic wave at the frequency of 50 Hz. Results of the analysis can be applied to calculating screening effects of conducting walls and housings. The considerations presented are based on assumptions that the permeability of the steel plate is constant, the radius of the conductor is small compared with the height of the conductor above the plate and that the system examined is infinitely long in direction of the conductor. The exemplary calculation is presented in the paper","PeriodicalId":272545,"journal":{"name":"2003 IEEE International Symposium on Electromagnetic Compatibility, 2003. EMC '03.","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114644471","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 : 2003-05-16DOI: 10.1109/ICSMC2.2003.1428274
I. Brooker, J. Robijns
This paper presents an overview of the assessment process for some examples of low frequency sources of electromagnetic field exposure. It contains a brief overview of the types of system as well as the non-uniformity of the field patterns and consequent exposure. Evaluation techniques from recent European Standards are summarised, reviewing the use of both field level and induced current density for assessment. A comparison is made between the results obtained from assessing according to the different criteria. In conclusion, there are some comments on the need for a global approach to handle the special difficulties in assessing these products
{"title":"Electromagnetic field exposure assessment for low frequency field emitting products","authors":"I. Brooker, J. Robijns","doi":"10.1109/ICSMC2.2003.1428274","DOIUrl":"https://doi.org/10.1109/ICSMC2.2003.1428274","url":null,"abstract":"This paper presents an overview of the assessment process for some examples of low frequency sources of electromagnetic field exposure. It contains a brief overview of the types of system as well as the non-uniformity of the field patterns and consequent exposure. Evaluation techniques from recent European Standards are summarised, reviewing the use of both field level and induced current density for assessment. A comparison is made between the results obtained from assessing according to the different criteria. In conclusion, there are some comments on the need for a global approach to handle the special difficulties in assessing these products","PeriodicalId":272545,"journal":{"name":"2003 IEEE International Symposium on Electromagnetic Compatibility, 2003. EMC '03.","volume":"92 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126127880","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 : 2003-05-16DOI: 10.1109/ICSMC2.2003.1428318
E. Protasevich
This paper presents a technique for recording radioactive pollution by measuring radiation in the superhigh frequency region
本文介绍了一种通过测量超高频区域辐射来记录放射性污染的技术
{"title":"Methods of detection of atmospheric radioactive radiations in microwave range","authors":"E. Protasevich","doi":"10.1109/ICSMC2.2003.1428318","DOIUrl":"https://doi.org/10.1109/ICSMC2.2003.1428318","url":null,"abstract":"This paper presents a technique for recording radioactive pollution by measuring radiation in the superhigh frequency region","PeriodicalId":272545,"journal":{"name":"2003 IEEE International Symposium on Electromagnetic Compatibility, 2003. EMC '03.","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125110631","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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