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2008 International Symposium on Electromagnetic Compatibility - EMC Europe最新文献

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Validation of low-level, high-frequency transient FDTD simulation with radiated field measurements 验证低水平，高频瞬态时域有限差分模拟与辐射场测量
2008 International Symposium on Electromagnetic Compatibility - EMC Europe Pub Date : 2008-09-01 DOI: 10.1109/EMCEUROPE.2008.4786823
R. Jaúregui, M. Pous, Mireya Fernández, P. Riu, Ferran Silva
{"title":"Validation of low-level, high-frequency transient FDTD simulation with radiated field measurements","authors":"R. Jaúregui, M. Pous, Mireya Fernández, P. Riu, Ferran Silva","doi":"10.1109/EMCEUROPE.2008.4786823","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2008.4786823","url":null,"abstract":"Validation of numerical simulation results for low-level, high-frequency transient radiated EMC signals is difficult because of the limitations of time domain measurement instruments. A measurement method combining the sensitivity of a RF spectrum analyzer and the time domain abilities of a digitizing oscilloscope is used to validate FDTD simulations of a fast transient coupled between two antennas inside a car.","PeriodicalId":133902,"journal":{"name":"2008 International Symposium on Electromagnetic Compatibility - EMC Europe","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132484626","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
Electromagnetic interference coupling into cardiac pacemaker electrodes 电磁干扰耦合到心脏起搏器电极
2008 International Symposium on Electromagnetic Compatibility - EMC Europe Pub Date : 2008-09-01 DOI: 10.1109/EMCEUROPE.2008.4786824
S. Schenke, F. Sabath, F. Sutter, M. Clemens, S. Dickmann
{"title":"Electromagnetic interference coupling into cardiac pacemaker electrodes","authors":"S. Schenke, F. Sabath, F. Sutter, M. Clemens, S. Dickmann","doi":"10.1109/EMCEUROPE.2008.4786824","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2008.4786824","url":null,"abstract":"Cardiac pacemakers (PMKs) are vital for many persons sufferering from heart diseases, and a malfunction of those devices can have terrible consequences for their wearers. The main source of malfunctions is the PMK's electrode which acts linke an antenna. An incident electromagnetic field can couple into the electrode and cause an interference voltage at the PMK's input connector. This signal can be misinterpreted as the electrocardiogram (ECG) of the heart and mislead the PMK to wrong reactions. This paper presents the results of series simulations for calculating the maximum input voltage as a function of the electical field strength of a plane wave penetrating the human body.","PeriodicalId":133902,"journal":{"name":"2008 International Symposium on Electromagnetic Compatibility - EMC Europe","volume":"213 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133934729","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: 9
Effects of phase differences in GTEM cell measurements GTEM细胞测量中相位差的影响
2008 International Symposium on Electromagnetic Compatibility - EMC Europe Pub Date : 2008-09-01 DOI: 10.1109/EMCEUROPE.2008.4786793
X. Ngu, A. Nothofer, D.W.P. Thomas, C. Christopoulos
{"title":"Effects of phase differences in GTEM cell measurements","authors":"X. Ngu, A. Nothofer, D.W.P. Thomas, C. Christopoulos","doi":"10.1109/EMCEUROPE.2008.4786793","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2008.4786793","url":null,"abstract":"This paper presents the effect on radiated power measured at the GTEM output port if the phase between the radiating dipole moments of the EUT is altered in steps from -180 degree to +170 degree. In current practice it is often assumed that the phase difference between dipole moments does not change the power measured at the GTEM output port. The results from this work disprove this assumption. Results from experiments show a significant change in the measured power when the phase was altered. Simulations using time-domain transmission line method (TLM) performed using the procedures described in standards MIMIC the experimental results and the variation of power magnitude agrees with that of experiments. SuperNECTM was used to produce radiation patterns for different phases which are used to gain an insight into the impact of phase. The major outcomes of this work are (1) an insight into an assessment of the impact of phase on power measurement and (2) the expected errors and uncertainties due to phase differences when current procedures are applied.","PeriodicalId":133902,"journal":{"name":"2008 International Symposium on Electromagnetic Compatibility - EMC Europe","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127579402","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 a simple impulsiveness correction factor for a digital communication system subjected to Middleton Class A interference 受米德尔顿a类干扰的数字通信系统的简单冲量校正系数的评估
2008 International Symposium on Electromagnetic Compatibility - EMC Europe Pub Date : 2008-09-01 DOI: 10.1109/EMCEUROPE.2008.4786818
K. Fors, K. Wiklundh
{"title":"Evaluation of a simple impulsiveness correction factor for a digital communication system subjected to Middleton Class A interference","authors":"K. Fors, K. Wiklundh","doi":"10.1109/EMCEUROPE.2008.4786818","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2008.4786818","url":null,"abstract":"For digital communication system, the bit error probability (BEP) is often used to show the impact on the system from interference. A commonly used approximation is to treat the interference as additive white Gaussian Noise (AWGN). For pulse modulated interference and impulsive interference, this approximation gives severe underestimations of the BEP. For this issue, a correction factor is proposed in. This impulsiveness correction factor ICF has earlier been investigated for different combinations of pulsed signals. In this work, the ICF is investigated for Class A interference. It is shown that there is a strong correlation between the ICF and the used interference model parameters A and Gamma for the Class A interference model.","PeriodicalId":133902,"journal":{"name":"2008 International Symposium on Electromagnetic Compatibility - EMC Europe","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114511041","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
Signal processing for generation of complex multiport transfer functions from medium quality time-domain measurements 从中等质量时域测量中生成复杂多端口传递函数的信号处理
2008 International Symposium on Electromagnetic Compatibility - EMC Europe Pub Date : 2008-09-01 DOI: 10.1109/EMCEUROPE.2008.4786931
T. Stadtler, J. ter Haseborg
{"title":"Signal processing for generation of complex multiport transfer functions from medium quality time-domain measurements","authors":"T. Stadtler, J. ter Haseborg","doi":"10.1109/EMCEUROPE.2008.4786931","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2008.4786931","url":null,"abstract":"Circuit feedback coupling by power supply lines is an important EMC issue. A modular multi-port network analyzer was developed to evaluate line coupling in a complex environment. The frequency range of interest was lower than 500 kHz however measurement time had to be kept low. Therefore a measurement solution in time domain was selected. The resulting data was to be used for system simulation in time and frequency domains. The set-up for a multi-port network analyzer is described in this paper and is used as an example. The measurement data of this analyzer is of medium quality. Therefore signal analysis is necessary to produce reliable input data for simulations. The main emphasis of this paper is to describe the steps of signal processing from experience. The results of simulation based on this data are compared to direct measurements.","PeriodicalId":133902,"journal":{"name":"2008 International Symposium on Electromagnetic Compatibility - EMC Europe","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115060891","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
Radiated emission from personal computers - a safety risk for TETRA systems? 个人电脑的辐射辐射- TETRA系统的安全风险?
2008 International Symposium on Electromagnetic Compatibility - EMC Europe Pub Date : 2008-09-01 DOI: 10.1109/EMCEUROPE.2008.4786828
P. Stenumgaard
{"title":"Radiated emission from personal computers - a safety risk for TETRA systems?","authors":"P. Stenumgaard","doi":"10.1109/EMCEUROPE.2008.4786828","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2008.4786828","url":null,"abstract":"In this paper we show that the radiated emission from personal computers seriously can affect the receiving properties of TETRA systems at distances of 10 meters. This radiated can therefore be a safety risk for TETRA receivers and has to be considered in system development of applications that are dependent on reliable and robust wireless communications.","PeriodicalId":133902,"journal":{"name":"2008 International Symposium on Electromagnetic Compatibility - EMC Europe","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116023636","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
Radiated emission measurements with an ultra-fast time-domain EMI measurement system 超快速时域电磁干扰测量系统的辐射发射测量
2008 International Symposium on Electromagnetic Compatibility - EMC Europe Pub Date : 2008-09-01 DOI: 10.1109/EMCEUROPE.2008.4786935
S. Braun, A. Frech, H. H. Slim, P. Russer
{"title":"Radiated emission measurements with an ultra-fast time-domain EMI measurement system","authors":"S. Braun, A. Frech, H. H. Slim, P. Russer","doi":"10.1109/EMCEUROPE.2008.4786935","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2008.4786935","url":null,"abstract":"Traditionally emission measurements are performed in frequency domain and take a long time for a single scan. Pre- and final scans are performed to reduce the time for the characterization of the device under test. Emission measurements in time-domain can reduce the measurement time for a single scan up to a factor of 4000. In this paper test procedures for radiated emission measurements are presented. An initial scan is proposed to determine the minimum dwell time that is required to get reproducable measurement results. If the dwell time that is required by the device under test is much smaller than the settling time of the quasi peak detector an enhanced pre- and final scan is proposed. However if the required dwell time is larger than the settling time of the quasi peak a full maximization is proposed. The procedures have been applied in an anechoic chamber in the frequency range 30 MHz -1 GHz. By such measurements the characterization of highly unstationary signals has become available. Automated measurements with high reliability can be performed.","PeriodicalId":133902,"journal":{"name":"2008 International Symposium on Electromagnetic Compatibility - EMC Europe","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121951071","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
Integrated circuit position optimization for reduced electromagnetic interferences on mobile devices 减少移动设备电磁干扰的集成电路位置优化
2008 International Symposium on Electromagnetic Compatibility - EMC Europe Pub Date : 2008-09-01 DOI: 10.1109/EMCEUROPE.2008.4786814
Tarvainen Timo, Ruokamo Tuukka, Kelander Ilkka, Kotiranta Pia
{"title":"Integrated circuit position optimization for reduced electromagnetic interferences on mobile devices","authors":"Tarvainen Timo, Ruokamo Tuukka, Kelander Ilkka, Kotiranta Pia","doi":"10.1109/EMCEUROPE.2008.4786814","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2008.4786814","url":null,"abstract":"Control of noise coupling between integrated circuits (ICs) and antennas in mobile devices is vital. This paper discusses integrated circuit position optimization to reduce electromagnetic interferences between an antenna and an IC.","PeriodicalId":133902,"journal":{"name":"2008 International Symposium on Electromagnetic Compatibility - EMC Europe","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129799200","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: 10
Determination of the interference voltage in implantable medical devices with bipolar electrodes 双极电极植入式医疗器械干涉电压的测定
2008 International Symposium on Electromagnetic Compatibility - EMC Europe Pub Date : 2008-09-01 DOI: 10.1109/EMCEUROPE.2008.4786875
S. Hille, K. Eichhorn, K. Gonschorek
{"title":"Determination of the interference voltage in implantable medical devices with bipolar electrodes","authors":"S. Hille, K. Eichhorn, K. Gonschorek","doi":"10.1109/EMCEUROPE.2008.4786875","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2008.4786875","url":null,"abstract":"This study investigates the coupling-model between external magnetic fields and induced voltages at the sensing input of the implantable medical devices with unipolar and bipolar electrodes. Therefore an analytical model has been developed allowing the determination of induced voltage into a pacemaker in a magnetic field with low frequencies between 10 Hz and 30 kHz. A distinction between left pectoral unipolar and bipolar pacemaker electrodes has been made here. Furthermore the different positions of a bipolar electrode were taken into consideration. It was found that depending on the position of the bipolar electrodes in a homogeneous magnetic field, major differences of induced voltage occur. The main task of this project is to ascertain the influence of electric conductivity on interference voltage in bipolar electrodes. The measurement circuit has been placed into an original pacemaker case and therefore allowed the comparison between bipolar and unipolar electrodes by only mode switching. The magnetic field has been generated by a Helmholtz coil. Part of the Helmholtz coil system was a model of a human torso filled with saline solution to simulate human tissue. The result of the measurements showed a dependency between electric conductivity and induced voltage. The extensively discussed security factor of bipolar electrodes could be calculated from the above-mentioned measurements. The assumed transition in interference voltage from bipolar to unipolar electrodes at about 100 kHz has been significantly lower in these experiments.","PeriodicalId":133902,"journal":{"name":"2008 International Symposium on Electromagnetic Compatibility - EMC Europe","volume":"148 12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130056074","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
High power ultra wide band and vircator source-victim experiments 高功率超宽带和振荡器源受害者实验
2008 International Symposium on Electromagnetic Compatibility - EMC Europe Pub Date : 2008-09-01 DOI: 10.1109/EMCEUROPE.2008.4786910
D. Åberg, F. Olsson, M. Jansson, C. Lindskog
{"title":"High power ultra wide band and vircator source-victim experiments","authors":"D. Åberg, F. Olsson, M. Jansson, C. Lindskog","doi":"10.1109/EMCEUROPE.2008.4786910","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2008.4786910","url":null,"abstract":"This paper presents effects of high power microwave sources on packaged IC circuits. The sources were one UWB system and one narrow band system consisting of a vircator. The paper reports threshold of susceptibilities for the two different sources on victims which were elementary logic circuits of bipolar and MOS-technologies.","PeriodicalId":133902,"journal":{"name":"2008 International Symposium on Electromagnetic Compatibility - EMC Europe","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125437494","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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