Pub Date : 2003-05-16DOI: 10.1109/ICSMC2.2003.1428268
W. Kreitmair-Steck, W. Tauber
Passengers requested to be allowed to work onboard of airplanes with PEDs of any kind. But this comfort is acceptable only if the airplanes are protected in such a way that all interferences of PEDs with aircraft systems, especially with flight critical systems are impossible. This paper report of PED measurements performed in the context of the European research programme EMHaz. The result is a new overall limit curve of PED emissions. Based on this limit curve, the threat of coupling into antennas and into installed cable looms for helicopters is investigated and the possible effects and functional influences on aircraft systems are deduced
{"title":"Can portable electronic devices (PEDs) interfere with aircraft systems?","authors":"W. Kreitmair-Steck, W. Tauber","doi":"10.1109/ICSMC2.2003.1428268","DOIUrl":"https://doi.org/10.1109/ICSMC2.2003.1428268","url":null,"abstract":"Passengers requested to be allowed to work onboard of airplanes with PEDs of any kind. But this comfort is acceptable only if the airplanes are protected in such a way that all interferences of PEDs with aircraft systems, especially with flight critical systems are impossible. This paper report of PED measurements performed in the context of the European research programme EMHaz. The result is a new overall limit curve of PED emissions. Based on this limit curve, the threat of coupling into antennas and into installed cable looms for helicopters is investigated and the possible effects and functional influences on aircraft systems are deduced","PeriodicalId":272545,"journal":{"name":"2003 IEEE International Symposium on Electromagnetic Compatibility, 2003. EMC '03.","volume":"38 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":"114616459","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/ICSMC2.2003.1428241
Huang Ling, W. Jianguo, Dong Wansheng, Chen Cixuan
This paper deduces a kind of simple method based on the sensor's full electromagnetic induction equation to reconstruct the transient magnetic field waveform in time domain. Research on the external electromagnetic interference source, background noise of oscilloscope and calibration method has been conducted in detail. Different kinds of methods to reduce interference and measurement error through the software and hardware method have been tested successfully. Calibration was conducted with impulse current generator from mus to ms scale. The results show that the reconstructed waveform is very consistent with the source waveform either in low frequency or in high frequency with less than 5% magnitude error
{"title":"Transient magnetic field waveform digital reconstruction based on sensor's full equation","authors":"Huang Ling, W. Jianguo, Dong Wansheng, Chen Cixuan","doi":"10.1109/ICSMC2.2003.1428241","DOIUrl":"https://doi.org/10.1109/ICSMC2.2003.1428241","url":null,"abstract":"This paper deduces a kind of simple method based on the sensor's full electromagnetic induction equation to reconstruct the transient magnetic field waveform in time domain. Research on the external electromagnetic interference source, background noise of oscilloscope and calibration method has been conducted in detail. Different kinds of methods to reduce interference and measurement error through the software and hardware method have been tested successfully. Calibration was conducted with impulse current generator from mus to ms scale. The results show that the reconstructed waveform is very consistent with the source waveform either in low frequency or in high frequency with less than 5% magnitude error","PeriodicalId":272545,"journal":{"name":"2003 IEEE International Symposium on Electromagnetic Compatibility, 2003. EMC '03.","volume":"17 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":"116086097","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/ICSMC2.2003.1428304
A. Beccuti, S. Leva, A. Morando
With reference to the classic three phase transmission line equations, the equivalent formulation in terms of Park components is obtained. A radiative model of a finite dimension transmission line, valid when high frequency harmonics are present, is then developed by taking advantage of some significant simplifications introduced by the same Park transform. A numerical example is then given by considering a medium voltage line fed by pulse width modulation (PWM)
{"title":"Analysis of three-phase transmission line radiation by means of a Park transform","authors":"A. Beccuti, S. Leva, A. Morando","doi":"10.1109/ICSMC2.2003.1428304","DOIUrl":"https://doi.org/10.1109/ICSMC2.2003.1428304","url":null,"abstract":"With reference to the classic three phase transmission line equations, the equivalent formulation in terms of Park components is obtained. A radiative model of a finite dimension transmission line, valid when high frequency harmonics are present, is then developed by taking advantage of some significant simplifications introduced by the same Park transform. A numerical example is then given by considering a medium voltage line fed by pulse width modulation (PWM)","PeriodicalId":272545,"journal":{"name":"2003 IEEE International Symposium on Electromagnetic Compatibility, 2003. EMC '03.","volume":"61 19 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":"124000765","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/ICSMC2.2003.1428185
H. Anastassiu, D. Lymperopoulos, D. Kaklamani
A rigorous accuracy analysis of the method of auxiliary sources (MAS), when applied to scattering problems is presented. A benchmark geometry, consisting of a perfectly conducting, infinite, circular cylinder, is chosen for clarity and simplicity. The MAS square matrix is inverted analytically, yielding exact mathematical expressions for the error and the condition number of the pertinent linear system. Among several important results of the analysis, the fundamental MAS question concerning the optimal location of the auxiliary sources is thoroughly investigated
{"title":"Accuracy analysis of the method of auxiliary sources (MAS) for scattering by a perfectly conducting cylinder","authors":"H. Anastassiu, D. Lymperopoulos, D. Kaklamani","doi":"10.1109/ICSMC2.2003.1428185","DOIUrl":"https://doi.org/10.1109/ICSMC2.2003.1428185","url":null,"abstract":"A rigorous accuracy analysis of the method of auxiliary sources (MAS), when applied to scattering problems is presented. A benchmark geometry, consisting of a perfectly conducting, infinite, circular cylinder, is chosen for clarity and simplicity. The MAS square matrix is inverted analytically, yielding exact mathematical expressions for the error and the condition number of the pertinent linear system. Among several important results of the analysis, the fundamental MAS question concerning the optimal location of the auxiliary sources is thoroughly investigated","PeriodicalId":272545,"journal":{"name":"2003 IEEE International Symposium on Electromagnetic Compatibility, 2003. EMC '03.","volume":"16 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":"117168054","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/ICSMC2.2003.1428221
V. Degardin, M. Liénard, P. Degauque, A. Zeddam, F. Gauthier
Intensive measurements of impulsive noise have been carried out on indoor power lines. From this approach, various types of transients are classified and a stochastic noise model is deduced from the statistical analysis of their main characteristics. A power line communication, based on an OFDM transmission scheme is simulated and, owing to the noise model, different channel coding schemes are tested and optimized to cope with the disturbing effect of this non stationary noise
{"title":"Impulsive noise on indoor power lines: characterization and mitigation of its effect on PLC systems","authors":"V. Degardin, M. Liénard, P. Degauque, A. Zeddam, F. Gauthier","doi":"10.1109/ICSMC2.2003.1428221","DOIUrl":"https://doi.org/10.1109/ICSMC2.2003.1428221","url":null,"abstract":"Intensive measurements of impulsive noise have been carried out on indoor power lines. From this approach, various types of transients are classified and a stochastic noise model is deduced from the statistical analysis of their main characteristics. A power line communication, based on an OFDM transmission scheme is simulated and, owing to the noise model, different channel coding schemes are tested and optimized to cope with the disturbing effect of this non stationary noise","PeriodicalId":272545,"journal":{"name":"2003 IEEE International Symposium on Electromagnetic Compatibility, 2003. EMC '03.","volume":"126 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":"115725478","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/ICSMC2.2003.1428247
S. Caorsi, G. Cevini
This paper is focused on the application of the time-domain finite element method (TDFEM) to study over a wide frequency band the scattering from different shielding structures. The present investigation is meant to provide some considerations on how the scattering and shielding characteristics depend on the geometric as well as on the dielectric properties of the shields. The finite element method is used to model the structures considered and to provide the transient electromagnetic fields. The finite element formulation integrates a time-domain absorbing boundary condition to truncate the unbounded numerical domain. Numerical results, concerning some 2D modellizations of different shielding structures, will be provided
{"title":"TDFEM analysis of the scattering properties of shielding structures","authors":"S. Caorsi, G. Cevini","doi":"10.1109/ICSMC2.2003.1428247","DOIUrl":"https://doi.org/10.1109/ICSMC2.2003.1428247","url":null,"abstract":"This paper is focused on the application of the time-domain finite element method (TDFEM) to study over a wide frequency band the scattering from different shielding structures. The present investigation is meant to provide some considerations on how the scattering and shielding characteristics depend on the geometric as well as on the dielectric properties of the shields. The finite element method is used to model the structures considered and to provide the transient electromagnetic fields. The finite element formulation integrates a time-domain absorbing boundary condition to truncate the unbounded numerical domain. Numerical results, concerning some 2D modellizations of different shielding structures, will be provided","PeriodicalId":272545,"journal":{"name":"2003 IEEE International Symposium on Electromagnetic Compatibility, 2003. EMC '03.","volume":"10 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":"132029095","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/ICSMC2.2003.1428282
E. Hoene, S. Guttowski, R. Saikly, W. John, H. Reichl
The application of electric motors and inverters for automotive traction leads to a significant increase in electromagnetic compatibility (EMC) problems. Especially the influence of traction batteries as part of the path for electromagnetic interference is not sufficiently investigated up to now. In this paper, models for battery behavior are derived from the structure of cylindrical and prismatic batteries. Therefore, material parameters are defined which describe the characteristics of the material used in the battery and allow the prediction of current distribution in the battery. The models are parameterized and verified by impedance measurements on Lithium ion (Li-ion) and nickel metal hydride (NiMH) batteries. The results allow the calculation of high frequency losses, the simulation of batteries as interference path and the prediction of external fields
{"title":"Rf-properties of automotive traction batteries","authors":"E. Hoene, S. Guttowski, R. Saikly, W. John, H. Reichl","doi":"10.1109/ICSMC2.2003.1428282","DOIUrl":"https://doi.org/10.1109/ICSMC2.2003.1428282","url":null,"abstract":"The application of electric motors and inverters for automotive traction leads to a significant increase in electromagnetic compatibility (EMC) problems. Especially the influence of traction batteries as part of the path for electromagnetic interference is not sufficiently investigated up to now. In this paper, models for battery behavior are derived from the structure of cylindrical and prismatic batteries. Therefore, material parameters are defined which describe the characteristics of the material used in the battery and allow the prediction of current distribution in the battery. The models are parameterized and verified by impedance measurements on Lithium ion (Li-ion) and nickel metal hydride (NiMH) batteries. The results allow the calculation of high frequency losses, the simulation of batteries as interference path and the prediction of external fields","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":"130698103","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/ICSMC2.2003.1428309
Lei Qi, T. Lu, X. Cui
Based on the conventional ladder approximation model, the exponential approximation model is adopted to approach nonuniform transmission lines. For every discrete segment, the stationary wave transform is applied to transform the partial differential equations of variational coefficients to that of ordinary coefficients. With the central difference approximations, the iterative formulas of the FDTD method are obtained. At last, compared with the traditional method, the method proposed is demonstrated to be effective and used to research the multiconductor transmission lines (MTL)
{"title":"Transient analysis for nonuniform MTLs based on the exponential approximation model","authors":"Lei Qi, T. Lu, X. Cui","doi":"10.1109/ICSMC2.2003.1428309","DOIUrl":"https://doi.org/10.1109/ICSMC2.2003.1428309","url":null,"abstract":"Based on the conventional ladder approximation model, the exponential approximation model is adopted to approach nonuniform transmission lines. For every discrete segment, the stationary wave transform is applied to transform the partial differential equations of variational coefficients to that of ordinary coefficients. With the central difference approximations, the iterative formulas of the FDTD method are obtained. At last, compared with the traditional method, the method proposed is demonstrated to be effective and used to research the multiconductor transmission lines (MTL)","PeriodicalId":272545,"journal":{"name":"2003 IEEE International Symposium on Electromagnetic Compatibility, 2003. EMC '03.","volume":"11 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":"128461042","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/ICSMC2.2003.1428265
S. Laib, F. Djahli, A. Mayouf
In this paper, the authors study the two discontinuities open-end and series gap in the coplanar striplines. New integral equations for the electrical field components are formulated, in the spectral domain, using an exact dyadic Green's function, applied to the coplanar stripline structure. The use of this type of Green's function, we permeate the consideration of the effects of the dielectric losses, surface wave excitation and space wave radiation on the propagation characteristics of the coplanar strip line and its two discontinuities. The resulting integral equation has been solved by the two-dimensional Galerkin's technique. The resulting matrix equation resolution we give the S-parameters of the two studied discontinuities. Our results are compared to those of other approaches
{"title":"Full-wave characterization of open-end and gap discontinuities of shielded coplanar striplines","authors":"S. Laib, F. Djahli, A. Mayouf","doi":"10.1109/ICSMC2.2003.1428265","DOIUrl":"https://doi.org/10.1109/ICSMC2.2003.1428265","url":null,"abstract":"In this paper, the authors study the two discontinuities open-end and series gap in the coplanar striplines. New integral equations for the electrical field components are formulated, in the spectral domain, using an exact dyadic Green's function, applied to the coplanar stripline structure. The use of this type of Green's function, we permeate the consideration of the effects of the dielectric losses, surface wave excitation and space wave radiation on the propagation characteristics of the coplanar strip line and its two discontinuities. The resulting integral equation has been solved by the two-dimensional Galerkin's technique. The resulting matrix equation resolution we give the S-parameters of the two studied discontinuities. Our results are compared to those of other approaches","PeriodicalId":272545,"journal":{"name":"2003 IEEE International Symposium on Electromagnetic Compatibility, 2003. EMC '03.","volume":"9 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":"124296165","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/ICSMC2.2003.1428341
D. F. Soldea, D. Razansky, P. Einziger, J. Mizrahi
The phenomenon of microwave power absorption has recently become of increased scientific and public interest, particularly in the area of cellular communication. Electromagnetic power absorption in biological tissues is a well-known phenomenon. Its evaluation requires, in general, a solution of the 3D frequency-dependent wave equation in complex configurations, which may necessitate quite massive analytical and numerical efforts. Herein, we focus on a simplified 1D model corresponding to normal-incidence of plane-waves upon a lossy half-space. Our model establishes a tight estimate on the maximal (optimal) power absorption in realistic mobile phone - human head configurations. Furthermore, the absorption efficiency as well as the source impedance are obtained via an explicit closed-form expressions, leading to an explicit optimal power absorption (worst-case/best-case) criteria for highly lossy tissues
{"title":"Optimization of plane-wave power absorption in lossy media","authors":"D. F. Soldea, D. Razansky, P. Einziger, J. Mizrahi","doi":"10.1109/ICSMC2.2003.1428341","DOIUrl":"https://doi.org/10.1109/ICSMC2.2003.1428341","url":null,"abstract":"The phenomenon of microwave power absorption has recently become of increased scientific and public interest, particularly in the area of cellular communication. Electromagnetic power absorption in biological tissues is a well-known phenomenon. Its evaluation requires, in general, a solution of the 3D frequency-dependent wave equation in complex configurations, which may necessitate quite massive analytical and numerical efforts. Herein, we focus on a simplified 1D model corresponding to normal-incidence of plane-waves upon a lossy half-space. Our model establishes a tight estimate on the maximal (optimal) power absorption in realistic mobile phone - human head configurations. Furthermore, the absorption efficiency as well as the source impedance are obtained via an explicit closed-form expressions, leading to an explicit optimal power absorption (worst-case/best-case) criteria for highly lossy tissues","PeriodicalId":272545,"journal":{"name":"2003 IEEE International Symposium on Electromagnetic Compatibility, 2003. EMC '03.","volume":"98 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":"117200184","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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