{"title":"EMC Protection of Instrument Signal Lines in Industrial Installations a Demonstration Model for EMC Education","authors":"C. F. Post","doi":"10.1109/EMCEUROPE.2018.8485061","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2018.8485061","url":null,"abstract":"This paper describes a practical test arrangement which is used to visualize the electromagnetic effects and key EMC measures in real process automation systems. The demonstration setup contains commonly used industrial components and known EMI sources such as a variable speed motor drive (VSD), switched inductive loads and a portable RF radio as well as susceptible instrumentation. Relatively simple measurements, mainly in the time domain are conducted to demonstrate the EM sources, the electromagnetic coupling paths to control equipment and the effectiveness of EMC installation measures in terms of shielding, bonding and segregation. The EMC demo is used to improve EMC skills of electrical and instrument design and service engineers.","PeriodicalId":376960,"journal":{"name":"2018 International Symposium on Electromagnetic Compatibility (EMC EUROPE)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128849839","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":"Estimation of Radiation Efficiency of GaN Half-Bridge Based Submodule System for Radiated EMI Prediction","authors":"Chris J. van Diemen, N. Moonen, F. Leferink","doi":"10.1109/EMCEUROPE.2018.8485132","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2018.8485132","url":null,"abstract":"Predicting radiated emissions in large and complex power systems is difficult under a single set operational conditions, however when flexibility is introduced it becomes near impossible without using thousands of Monte-Carlo type simulations. In this paper it is suggested to estimate the radiation efficiency (i.e. transfer function) of a power system based on a novel theoretical model and a limited amount of measurements under operating conditions. The switching power system is modeled as a LTI-system that is excited by a known Sinusoidal Pulse Width Modulation (sPWM) source, i.e. the switching node voltage waveform. The theoretical model simplifies the estimation of the sPWM power spectrum, while its amplitude is also independent of modulation index. By measuring radiated electric fields and calculating Effective Radiated Power (ERP) one can estimate the system radiation efficiency in a novel way. The derived efficiency can eventually be used to optimize the radiated EMI, for instance by avoiding highly radiative frequencies in the signal generation.","PeriodicalId":376960,"journal":{"name":"2018 International Symposium on Electromagnetic Compatibility (EMC EUROPE)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116516661","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":"Relationship Between In-Situ Electric Field and External Magnetic Field Strength in Human Models-Rational of IEEE C95.6 Standard Revisited","authors":"Katsuaki Aga, A. Hirata, I. Laakso","doi":"10.1109/EMCEUROPE.2018.8485010","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2018.8485010","url":null,"abstract":"IEEE C95.1 (radio frequency) and C95.6 (low frequency) standards for human protection from electromagnetic fields are being under revision. In the next revision, they will be combined into one standard. Even though C95.1 standard considers anatomical human models for deriving the relationship between internal and external field strengths, ellipse is used in C95.6 (low frequency) standard. It is worth computing their relationship and associated technical issues when using anatomical models. In this study, two different codes developed at Nagoya Institute of Technology and Aalto University were used for inter-comparison. Computational results suggested that the relationship between in-situ and external field strengths are in good agreement when considering 99th percentile of in-situ electric field; less than 10%. The classification of body parts is one of the essential factors for determining the in-situ field strength in ‘the limb’ and ‘other tissues’.","PeriodicalId":376960,"journal":{"name":"2018 International Symposium on Electromagnetic Compatibility (EMC EUROPE)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125470753","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}
Makoto Hara, Yasuo Takahashi, R. Vogt-Ardatjew, Frank Lcferink
{"title":"Statistical Analysis for Reverberation Chamber with Flexible Shaking Walls with Various Amplitudes","authors":"Makoto Hara, Yasuo Takahashi, R. Vogt-Ardatjew, Frank Lcferink","doi":"10.1109/EMCEUROPE.2018.8485107","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2018.8485107","url":null,"abstract":"A statistical analysis of measured electromagnetic field strength levels in a reverberation chamber with flexible shaking walls with various amplitudes is described. The amplitude of flexible shaking walls is one of the key design factors generating a variety of multipath electromagnetic fields in a vibrating intrinsic reverberation chamber (VIRC) to suit individual testing requirements. Since uncorrelated samples are preferred to improve the accuracy of statistical analysis, the statistics were calculated using estimated uncorrelated samples selected from the recorded data. Assuming that the design criteria of the ideal perfectly random electromagnetic environment are a standard deviation of the data of less than 2.0 dB and a rejection rate of the chi-squared goodness of fit test of less than 50%, we determined that the measured amplitude of the flexible shaking walls must be more than one eighth of the wavelength at the test frequency.","PeriodicalId":376960,"journal":{"name":"2018 International Symposium on Electromagnetic Compatibility (EMC EUROPE)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124136442","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":"One-Port Measurements of non-coaxial DUTs with Vector Network Analyzer","authors":"J. Sroka","doi":"10.1109/EMCEUROPE.2018.8485057","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2018.8485057","url":null,"abstract":"In the set ups for EMC testing there is manifold of passive one-port DUTs with non-coaxial terminal (Coupling Decoupling Networks, Artificial Main Networks, Asymmetrical Artificial Networks, etc.). They are verified in the radio frequency range with Vector Network Analyzers VNAs, which unfortunately have coaxial ports. Such DUTs can be connected to the VNA only with insertion of adapters in-between. The adapter shades the DUT. In this paper the method of the DUT's revealment is presented. This approach is preceded with the Short-Open-Thru-Match SOTM calibration. Frequency limitations in applicability of the method is discussed. Validation of the method consists in determination of impedance of the CDN available on the market.","PeriodicalId":376960,"journal":{"name":"2018 International Symposium on Electromagnetic Compatibility (EMC EUROPE)","volume":"213 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127832181","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}
Sanaz Mortazavi, D. Schleicher, F. Schade, Carsten Gremzow, Friedel Gcrfers
{"title":"Toward Investigation of the Multi-Gig Data Transmission up to 5 Gbps in Vehicle and Corresponding EMC Interferences","authors":"Sanaz Mortazavi, D. Schleicher, F. Schade, Carsten Gremzow, Friedel Gcrfers","doi":"10.1109/EMCEUROPE.2018.8485142","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2018.8485142","url":null,"abstract":"This article focuses on the automotive Ethernet Multi-Gig data communication (data rates up to 5 Gbps) and the corresponding EMC issues. As an entry into the topic, both the existing (100BASE-T1, 1000BASE-T1) and the future (NBASE-T1) automotive Ethernet standards are described in detail. Three important aspects of the NGAUOT (Multi-Gigabit Automotive Ethernet Study) are pointed out. First, the bandwidth requirements concerning the selected pulse amplitude modulation level (PAM-N) and the transmitted data rate are mentioned. Second, the appropriate cables (as the medium) are compared. Finally, the different types of operation modes and their advantages are described in detail. The structure of the Multi-Gig Ethernet physical layer (PHY) is briefly discussed. In this work, the use of Field Programmable Gate Array (FPGA) as a dummy gigabit automotive PHY is proposed. From author's point of view, this is the first time that the FPGAs are used for characterizing the EMC issues of automotive Multi-Gig Ethernet links. For this purpose, laboratory and vehicle measurements are carried out. In the laboratory, the influence of different data rates (2.5 Gbps, 5 Gbps) and cable lengths (2m, 6m, 15m) on the signal quality in terms of bit error rate (statistical eye diagram) is examined and evaluated. For the vehicle measurements, the FPGA boards were configured as transmitter and receiver separately. The emission of shielded twisted pair (STP) cable carrying data rates in gigabit range (2.5 Gbps, 5 Gbps) over various frequency bands in vehicle is measured.","PeriodicalId":376960,"journal":{"name":"2018 International Symposium on Electromagnetic Compatibility (EMC EUROPE)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127531859","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}
Hosang Lee, J. Yousaf, Jeongeun Kim, W. Nah, J. Youn, Daehee Lee, C. Hwang
{"title":"Analysis of Antenna Performance Degradation due to VCO Source Using Active S-Parameters","authors":"Hosang Lee, J. Yousaf, Jeongeun Kim, W. Nah, J. Youn, Daehee Lee, C. Hwang","doi":"10.1109/EMCEUROPE.2018.8485062","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2018.8485062","url":null,"abstract":"This paper proposes a method to analyze antenna performance degradation due to electromagnetic interference (EMI) between an antenna and a noise source using active scattering $(S)$ parameters. The victim is a printed planar inverted-F antenna (PIFA) and the noise source over the victim is high frequency signals coming from a voltage controlled oscillator (VCO) via a loop shaped transmission line. Operating the VCO distorts the return loss of nearby antenna, which results in the degradation of the antenna performance. The excitation power of noise source was measured by probing the power of veo circuit, and were used for the input in the active $S$ -parameters calculations. The validity of the proposed method was confirmed by the good agreement between the simulated and measured results.","PeriodicalId":376960,"journal":{"name":"2018 International Symposium on Electromagnetic Compatibility (EMC EUROPE)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133661178","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":"About Electromagnetic Compatibility of Track Circuits with the Traction Supply System of Railway","authors":"T. Serdiuk, M. Feliziani, K. Serdiuk","doi":"10.1109/EMCEUROPE.2018.8485034","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2018.8485034","url":null,"abstract":"Track circuits are of fundamental importance for the safety in railway systems. Thus, they must be immune from electromagnetic interference (EMI). To this aim they must be accurately characterized. The paper deals with the determination of spectrum composition of traction current with the electric traction. A method of measuring the parameters of track circuits (time and amplitude parameters of code current, flowing in rail lines, an input impedance of a track circuit, characteristic impedance and propagation constant) is considered Automated method of measurement of parameters of track circuits and harmonics of return traction current was elaborated by the car-laboratory. The harmonics coinciding with the code frequency are inadmissible for the track circuits.","PeriodicalId":376960,"journal":{"name":"2018 International Symposium on Electromagnetic Compatibility (EMC EUROPE)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134109559","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":"On the Meaning of Enclosure Shielding Effectiveness","authors":"J. Dawson, A. Marvin, M. Robinson, I. Flintoft","doi":"10.1109/EMCEUROPE.2018.8485121","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2018.8485121","url":null,"abstract":"This paper presents some thoughts on the meaning of shielding effectiveness (SE) for a real enclosure. It is demonstrated that the conventional measurement of SE is a value specific to the particular measurement and is not necessarily representative of the enclosure in any practical situation, including a different measurement. The SE of an enclosure depends both on the enclosure contents, including the measurement antenna and the effective transmission cross-section of the energy coupling mechanisms such as apertures, penetrations, seams and diffusion through walls.","PeriodicalId":376960,"journal":{"name":"2018 International Symposium on Electromagnetic Compatibility (EMC EUROPE)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134406975","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":"Reconstruction of Current Distribution and Termination Impedances of PCB-Traces by Magnetic Near-Field Data and Transmission-Line Theory","authors":"R. Nowak, S. Frei","doi":"10.1109/EMCEUROPE.2018.8485103","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2018.8485103","url":null,"abstract":"Various publications have shown methods to reconstruct the current distribution of a wire system, e.g. of a PCB, by the usage of near-field data. Especially, if there is knowledge about the potential current paths, these methods achieve satisfactory results. This publication presents a novel approach to improve the quality of the reconstruction by application of the transmission-line theory. Additionally, also the termination impedances of a PCB trace can be determined by the approach presented in this work. For demonstration, several PCB-like structures are investigated with the introduced methods. The results are discussed and compared to other methods.","PeriodicalId":376960,"journal":{"name":"2018 International Symposium on Electromagnetic Compatibility (EMC EUROPE)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133453643","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}