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2007 18th International Zurich Symposium on Electromagnetic Compatibility最新文献

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Luminosity characteristics of the traveling current source return stroke models 行流源回程行程模型的光度特性
2007 18th International Zurich Symposium on Electromagnetic Compatibility Pub Date : 2007-11-27 DOI: 10.1109/EMCZUR.2007.4388251
J. Cvetic, S. Markovic, M. Tausanovic
{"title":"Luminosity characteristics of the traveling current source return stroke models","authors":"J. Cvetic, S. Markovic, M. Tausanovic","doi":"10.1109/EMCZUR.2007.4388251","DOIUrl":"https://doi.org/10.1109/EMCZUR.2007.4388251","url":null,"abstract":"A comparative analysis has been performed on the lightning channel-base current and the radiated light waveforms for five different return stroke models of the traveling current source type. It is assumed that the lightning current along the channel and the emitted light signals exhibit a linear relationship (direct proportionality) in their rising portions. Five return stroke models of the traveling-current-source-type are chosen and compared: the BG model, the classical TCS model, Diendorfer-Uman (DU) model, the modified Diendorfer-Uman (MDU) model and the generalized TCS model (GTCS). It is concluded that the channel discharge constant in the DU and the MDU models as well as the channel distribution function in the GTCS model have the decisive influence on the channel luminosity output. These findings support the idea of evaluating the variations of return stroke current along the lightning return stroke channel using light signals, provided that evaluation is limited to the rising portions of those signals and assuming that the light/current relationship observed at the bottom of the channel holds at other heights.","PeriodicalId":397061,"journal":{"name":"2007 18th International Zurich Symposium on Electromagnetic Compatibility","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128222627","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
Application of mode transformers for characterization of symmetrical bi-modal planar transmission lines 模态变压器在对称双峰平面传输线表征中的应用
2007 18th International Zurich Symposium on Electromagnetic Compatibility Pub Date : 2007-11-27 DOI: 10.1109/EMCZUR.2007.4388255
T. Stefański, B. Janiczak
{"title":"Application of mode transformers for characterization of symmetrical bi-modal planar transmission lines","authors":"T. Stefański, B. Janiczak","doi":"10.1109/EMCZUR.2007.4388255","DOIUrl":"https://doi.org/10.1109/EMCZUR.2007.4388255","url":null,"abstract":"A new approach for characterization of electrically symmetrical bi-modal planar transmission lines is presented. The method relies on the application of standard two-port vector network analyzer (VNA) and mode transformers used to exert single mode propagation in the line under test. Verification of practical usability of developed method has been performed for coupled coplanar waveguides (C-CPW). Good coherence between results of measurements of both modal propagation coefficients and characteristic impedances with solutions obtained from the full-wave computations has been achieved. Acquired time domain reflectometry (TDR) waveforms have demonstrated that discontinuities introduced to the investigated structure response in case of the use of mode transformers (single-end driving) are comparable or smaller than in case of differential driving. Moreover, TDR measurements have demonstrated that, dependently on the nature of used transformer, either power-current or power-voltage definition of the modal characteristic impedance provides the best coherence with measurement.","PeriodicalId":397061,"journal":{"name":"2007 18th International Zurich Symposium on Electromagnetic Compatibility","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131807357","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
EMC modelling of cardiac pacemakers 心脏起搏器的EMC建模
2007 18th International Zurich Symposium on Electromagnetic Compatibility Pub Date : 2007-11-27 DOI: 10.1109/EMCZUR.2007.4388189
S. Schenke, L. Fichte, S. Dickmann
{"title":"EMC modelling of cardiac pacemakers","authors":"S. Schenke, L. Fichte, S. Dickmann","doi":"10.1109/EMCZUR.2007.4388189","DOIUrl":"https://doi.org/10.1109/EMCZUR.2007.4388189","url":null,"abstract":"Cardiac pacemakers are vital for many persons sufferering from heart diseases, and a malfunction of those devices can have terrible consequences for their wearers. Yet, in a signal environment evermore complex, the influence of external signals interfering with the normal operation of a pacemaker is getting stronger. We present an analytical linear model for a pacemaker and use it for a detailed investigation on the influences of external signals on the operation. In a second step, we take into account non-linear properties and investigate the most common signal types using the non-linear model.","PeriodicalId":397061,"journal":{"name":"2007 18th International Zurich Symposium on Electromagnetic Compatibility","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122853553","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: 11
Electric fields at the top of tall building associated with nearby lightning return strokes 高层建筑顶部的电场与附近的雷击有关
2007 18th International Zurich Symposium on Electromagnetic Compatibility Pub Date : 2007-11-27 DOI: 10.1109/EMCZUR.2007.4388225
Yoshihiro Baba, V. Rakov
{"title":"Electric fields at the top of tall building associated with nearby lightning return strokes","authors":"Yoshihiro Baba, V. Rakov","doi":"10.1109/EMCZUR.2007.4388225","DOIUrl":"https://doi.org/10.1109/EMCZUR.2007.4388225","url":null,"abstract":"Using the finite-difference time-domain (FDTD) method for solving Maxwell’s equations, we have calculated the vertical electric field Ez due to lightning return strokes both in the presence and in the absence of building at the field point. Strikes to both flat ground and tall objects of height h=100, 200, or 500 m are considered. The magnitude of Ez is significantly influenced by the presence of either building at the field point or strike object. In the case of a lightning strike to flat ground, the magnitude of Ez on the roof of building having a plan area of Sb=40 × 40 m2 and a height of hb=20, 50, or 100 m located at a horizontal distance ranging from d =100 to 500 m from the lightning channel is about 1.5, 2, or 3 times, respectively, greater than that at the same horizontal distance on the ground surface in the absence of building. The enhancement factor for Ez due to the presence of building at the field point is essentially not influenced by the presence of strike object (up to 500 m in height).","PeriodicalId":397061,"journal":{"name":"2007 18th International Zurich Symposium on Electromagnetic Compatibility","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129106620","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
Mixed time/frequency-domain modeling of cross-talk phenomena in coupled microstrip lines terminated with digital circuit 以数字电路端接的耦合微带线串扰现象的混合时频域建模
2007 18th International Zurich Symposium on Electromagnetic Compatibility Pub Date : 2007-11-27 DOI: 10.1109/EMCZUR.2007.4388209
A. Ciminski, B. Janiczak
{"title":"Mixed time/frequency-domain modeling of cross-talk phenomena in coupled microstrip lines terminated with digital circuit","authors":"A. Ciminski, B. Janiczak","doi":"10.1109/EMCZUR.2007.4388209","DOIUrl":"https://doi.org/10.1109/EMCZUR.2007.4388209","url":null,"abstract":"This work presents results of cross-talk modeling in system of edge-coupled microstrip lines loaded with nonlinear termination representing input/output pin of a real digital circuit. Analytical approach based on mixed time/frequency-domain description allows for inclusion of the line dispersion effect and waveform analysis accessibility. To eliminate complicated computations in order to achieve nonlinear load response, the algorithm makes use of combination of Volterra and Taylor series. Simulation results, obtained from a specially designed software tool, called XTalk, are compared with data gathered from real circuit measurements.","PeriodicalId":397061,"journal":{"name":"2007 18th International Zurich Symposium on Electromagnetic Compatibility","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127823495","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
On improving xDSL performances by applying particular methods of crosstalk reduction 利用特定的串扰抑制方法提高xDSL性能
2007 18th International Zurich Symposium on Electromagnetic Compatibility Pub Date : 2007-11-27 DOI: 10.1109/EMCZUR.2007.4388290
S. Roblot, A. Zeddam, A. Reineix
{"title":"On improving xDSL performances by applying particular methods of crosstalk reduction","authors":"S. Roblot, A. Zeddam, A. Reineix","doi":"10.1109/EMCZUR.2007.4388290","DOIUrl":"https://doi.org/10.1109/EMCZUR.2007.4388290","url":null,"abstract":"This paper presents two methods of crosstalk reduction in telecommunication cables composed of multiple conductors. Initially, an electromagnetic and topologic code is implemented to simulate the multi conductor transmission line when configuring the line following each method. Then, the far end crosstalk voltage is determined. To picture those results, the crosstalk results obtained by simulation are used for simulating the noise level on ADSL and VDSL channels. We can therefore establish the system performances improvement in terms of reach and bit rate. With both methods, it appears that is possible to decrease crosstalk on the line, and consequently to increase the performances of xDSL transmissions.","PeriodicalId":397061,"journal":{"name":"2007 18th International Zurich Symposium on Electromagnetic Compatibility","volume":"404 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127002563","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
Improved adapters for the accurate calibration of LISN input impedance 改进的适配器，用于精确校准LISN输入阻抗
2007 18th International Zurich Symposium on Electromagnetic Compatibility Pub Date : 2007-11-27 DOI: 10.1109/EMCZUR.2007.4388302
M. Borsero, Claudio Pravato, A. Sona, M. Stellini, A. Zuccato
{"title":"Improved adapters for the accurate calibration of LISN input impedance","authors":"M. Borsero, Claudio Pravato, A. Sona, M. Stellini, A. Zuccato","doi":"10.1109/EMCZUR.2007.4388302","DOIUrl":"https://doi.org/10.1109/EMCZUR.2007.4388302","url":null,"abstract":"The paper deals with the accurate calibration of LISN impedance at the EUT port, focusing on the effects of parasitic parameters at the EUT side and their effects on calibration. The goal is to improve the calibration accuracy and repeatability by adopting a standardized external adapter, used to connect the measurement system to the LISN. Different models are analysed, both theoretically and experimentally, through meaningful experimental examples.","PeriodicalId":397061,"journal":{"name":"2007 18th International Zurich Symposium on Electromagnetic Compatibility","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123815985","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: 8
Modeling of dynamic switching currents of digital VLSI IC modules and verification by on-chip measurement 数字VLSI集成电路模块动态开关电流建模及片上测量验证
2007 18th International Zurich Symposium on Electromagnetic Compatibility Pub Date : 2007-11-27 DOI: 10.1109/EMCZUR.2007.4388181
A. Gstottner, J. Kruppa, M. Huemer
{"title":"Modeling of dynamic switching currents of digital VLSI IC modules and verification by on-chip measurement","authors":"A. Gstottner, J. Kruppa, M. Huemer","doi":"10.1109/EMCZUR.2007.4388181","DOIUrl":"https://doi.org/10.1109/EMCZUR.2007.4388181","url":null,"abstract":"Tough requirements on electromagnetic compatibility (EMC) of electronic equipment forces the demand for low electromagnetic emission (EME) of integrated circuit devices. To enable an efficient application of measures reducing the noise emission, automatic model generation tools are needed to be part of the design flow. In this paper we present a method for high level modeling of dynamic switching currents of complex digital IC modules as well as the verification of the simulation results with a high speed on-chip current and voltage sensor. The current profile calculation for single modules is based on statistical approaches, and parasitic effects of cell interconnects are modeled by utilizing signal processing methods.","PeriodicalId":397061,"journal":{"name":"2007 18th International Zurich Symposium on Electromagnetic Compatibility","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126279054","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
On board measurements of the railway’s electromagnetic noise with moving train 列车运行时铁路电磁噪声的车载测量
2007 18th International Zurich Symposium on Electromagnetic Compatibility Pub Date : 2007-11-27 DOI: 10.1109/EMCZUR.2007.4388271
N. Ben Slimen, V. Deniau, S. Baranowski, J. Rioult, N. Dubalen, B. Démoulin, Consortium Railcom
{"title":"On board measurements of the railway’s electromagnetic noise with moving train","authors":"N. Ben Slimen, V. Deniau, S. Baranowski, J. Rioult, N. Dubalen, B. Démoulin, Consortium Railcom","doi":"10.1109/EMCZUR.2007.4388271","DOIUrl":"https://doi.org/10.1109/EMCZUR.2007.4388271","url":null,"abstract":"The paper deals with the electromagnetic (EM) characterisation of the railway’s environment on a moving train, in the frequency band extended from 300 MHz to 1 GHz. A measurement method adapted to this context will be studied in order to characterise the interferences which can affect the on board telecommunication systems. Comparisons between measurements in time domain and frequency domain will be performed for different operating conditions.","PeriodicalId":397061,"journal":{"name":"2007 18th International Zurich Symposium on Electromagnetic Compatibility","volume":"12 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125723295","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
FDTD analysis of the field penetration through lossy materials in a reverberation chamber 混响室中场穿透损耗材料的时域有限差分分析
2007 18th International Zurich Symposium on Electromagnetic Compatibility Pub Date : 2007-11-27 DOI: 10.1109/EMCZUR.2007.4388204
G. Gradoni, F. Moglie, A. P. Pastore, V. M. Primiani
{"title":"FDTD analysis of the field penetration through lossy materials in a reverberation chamber","authors":"G. Gradoni, F. Moglie, A. P. Pastore, V. M. Primiani","doi":"10.1109/EMCZUR.2007.4388204","DOIUrl":"https://doi.org/10.1109/EMCZUR.2007.4388204","url":null,"abstract":"This paper presents an electromagnetic analysis of lossy materials with a reverberation chamber (RC) and a case inside it. The geometrical structure is modeled with a multistructural FDTD technique. The domain of the RC is simulated with the classical Hill’s plane wave representation, the material domain is followed by an array of monodimensional FDTD and the case domain is made with the perfect electric conductor (PEC). Physically, the material is placed above an electrically large aperture of the case, that couples considered environments. Thanks to the high conductivity of the material, it is possible to separate numerical domains: only the material lattice is subordinate to the cell contraction. Numerical results are validated with the Fresnel theory and compared with experimental measurements.","PeriodicalId":397061,"journal":{"name":"2007 18th International Zurich Symposium on Electromagnetic Compatibility","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132256701","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
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