T. Nagaoka, K. Saito, M. Takahashi, K. Ito, S. Watanabe
{"title":"Estimating specific absorption rates in pregnant women by using models at 12-, 20-, and 26-weeks' gestation for plane wave exposures","authors":"T. Nagaoka, K. Saito, M. Takahashi, K. Ito, S. Watanabe","doi":"10.1109/EMCEUROPE.2008.4786868","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2008.4786868","url":null,"abstract":"The numerical dosimetry of women during pregnancy is an important issue in electromagnetic field safety. We had developed a whole-body numerical pregnant-woman model at 26-weeks' gestation. In this study, we developed pregnant-woman models that included the inherent tissues of pregnant women adjusted to the standard reference values at 12- and 20-weeks' gestation by deforming the existing pregnant-woman model. We also improved the original 26-weeks' pregnant-woman model so that the masses of inherent pregnancy tissues are adjusted to the standard reference values. The anatomical details of the developed pregnant-woman models and basic SAR characteristics for whole-body exposure to RF electromagnetic fields are described.","PeriodicalId":133902,"journal":{"name":"2008 International Symposium on Electromagnetic Compatibility - EMC Europe","volume":"9 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":"116073641","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}
E. Genender, C. Holloway, K. Remley, J. Ladbury, G. Koepke, H. Garbe
{"title":"Use of reverberation chamber to simulate the power delay profile of a wireless environment","authors":"E. Genender, C. Holloway, K. Remley, J. Ladbury, G. Koepke, H. Garbe","doi":"10.1109/EMCEUROPE.2008.4786832","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2008.4786832","url":null,"abstract":"Multipath propagation environment effects, such as frequency-selective fading, have a strong impact on the quality of a wireless channel. For example, multipath can impact bit error rate (BER) differently from Gaussian noise. For testing wireless devices/systems in these multipath environments it is imperative to have a reliable, controllable, and statistically repeatable measurement facility. The purpose of this paper is to illustrate how the reverberation chamber can be used to simulate different multipath propagation environments. Channel characteristics such as power-delay profile, RMS-delay spread, and the Rician K-factor are examined. Results for different chamber configurations (e.g., loading of the chamber, antenna positions, etc.) are compared and their effects discussed. Results achieved inside a chamber are compared with those obtained in an actual industrial environment.","PeriodicalId":133902,"journal":{"name":"2008 International Symposium on Electromagnetic Compatibility - EMC Europe","volume":"32 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":"126065469","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":"Effects of shielding enclosures on the breakdown failure rate of electronic equipment","authors":"H. Herlemann, S. Fisahn, M. Koch, H. Garbe","doi":"10.1109/EMCEUROPE.2008.4786905","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2008.4786905","url":null,"abstract":"As a criterion of quality of a shield regarding its ability to protect electronic equipment against electromagnetic pulses, the breakdown failure rate of an operating test equipment with and without the shield can be compared [1]. In this contribution, the shielding behavior of cubical shields with varying rectangular slots against ultra wideband pulses of double exponential wave form is studied. It is found out, that applying the shield may have the effect, that electronic equipment becomes even more vulnerable to pulses due to resonance effects inside the enclosure. The results of these examinations in time domain are compared to results in frequency domain which can be found in literature [2].","PeriodicalId":133902,"journal":{"name":"2008 International Symposium on Electromagnetic Compatibility - EMC Europe","volume":"4 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":"123649024","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":"Radiated emissions modelling of a power cable","authors":"M. Meyer, P. Asfaux","doi":"10.1109/EMCEUROPE.2008.4786845","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2008.4786845","url":null,"abstract":"This paper presents two numerical methods to compute quickly radiated emissions of a cable linking a power converter and a motor. 3D model is not built to be compliant with industrial process (short time development). The field is directly deduced (thanks to Matlab programs) from the common mode current and the load impedance. Simulations are compared to measurements on an inverter mock-up designed by Airbus France. Measurement set-up is performed according to DO160 standards. Modeling results show a good correlation with measurements.","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":"129603385","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}
S. Ludwig, L. Radic-Weissenfeld, W. Mathis, W. John
{"title":"Efficient description of RLC-macromodels with a large number of independent sources for model order reduction","authors":"S. Ludwig, L. Radic-Weissenfeld, W. Mathis, W. John","doi":"10.1109/EMCEUROPE.2008.4786822","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2008.4786822","url":null,"abstract":"This paper introduces an efficient description of electromagnetic macromodels that contain passive electrical elements and a large number of independent sources. This description allows for much higher order reduction than the standard description. In the proposed description the behavior at the pins of the model as well as the passivity are preserved. With model order reduction algorithms the proposed description of the network can be reduced more efficiently and therewith a higher speed-up in simulations can be achieved. The whole procedure is validated by applying it to an macromodel of the electromagnetic behavior of a 32 Bit microcontroller.","PeriodicalId":133902,"journal":{"name":"2008 International Symposium on Electromagnetic Compatibility - EMC Europe","volume":"21 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":"129659253","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":"Experimental evaluation of the induced current by the PLC leakage electromagnetic wave","authors":"K. Takaya, T. Abe, T. Tominaga","doi":"10.1109/EMCEUROPE.2008.4786813","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2008.4786813","url":null,"abstract":"The influence of electromagnetic radiation from power-line communication (PLC) systems on various types of communication or broadcast services has been investigated. This paper describes experimental results of the influence of electromagnetic radiation from a PLC system on other communication services. The influence was evaluated by measuring the current induced in a communication cable close to a power-line cable. The evaluation involved measuring the induced current for different communication cable structures, different lengths over which the communication and power-line cable ran parallel, and different distances of separation between the cables. It was found that the induced current that occurs in the adjacent communication cable depends on the length over which the cables run parallel and the distance of separation, but does not depend on the structure of the communication cable. Furthermore, the minimum length of parallel cabling to result in saturation of the induced current, which depends on the output power of the PLC modems, was obtained experimentally.","PeriodicalId":133902,"journal":{"name":"2008 International Symposium on Electromagnetic Compatibility - EMC Europe","volume":"32 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":"133644490","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":"Attenuation effect of the wall structure on the electric field generated by indoor power line communication system","authors":"I. Wu, S. Ishigami, K. Gotoh, Y. Matsumoto","doi":"10.1109/EMCEUROPE.2008.4786799","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2008.4786799","url":null,"abstract":"The attenuation effect of the wall structure of a building on the electric field generated by an indoor power line communication (PLC) system is numerically investigated using the finite integration (FI) method. In particular, we focus on two types of wall structure (reinforced concrete and wooden structures) and the frequency range from 2 MHz to 6 MHz, for which the attenuation effect of a building on electric leakage has not yet been sufficiently analyzed. In our model, the electric field is evaluated at a point 1m from a finite-sized single wall to focus on the dependence of the electric field on the wall structure. As a result, it was found that more than 99% of the leakage of the electric field is suppressed by the reinforced concrete wall and more than 60% of the leakage of the electric field is suppressed by the wooden wall at frequencies of 2 MHz - 6 MHz. Then we vary the distance of the view plane from the wall to examine the attenuation of the leakage electric field at 2 MHz. As a result, it was found that more than 98% electric field loss was obtained for both structures when the distance of the view plane from the wall is more than 5 m. It can be concluded that the reinforced concrete wall and the wooden wall are useful to suppress the leakage electric field caused by indoor PLC systems.","PeriodicalId":133902,"journal":{"name":"2008 International Symposium on Electromagnetic Compatibility - EMC Europe","volume":"19 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":"114627458","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":"Filtering based upon the distribution and interleaving of signals","authors":"Bruno Audone, Demis Boschetti, I. Marziali","doi":"10.1109/EMCEUROPE.2008.4786804","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2008.4786804","url":null,"abstract":"The distribution and interleaving of signals represents a simple method, which can be used successfully for general purpose filtering. Presently it is commonly utilized in switched mode power converters. The mathematical formulation of the method is presented and widened to cover more general situations; moreover with the help of a system simulator the cases of low pass and band pass filters are studied to illustrate the performance of the distributed and interleaving system.","PeriodicalId":133902,"journal":{"name":"2008 International Symposium on Electromagnetic Compatibility - EMC Europe","volume":"4 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":"131815134","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":"Feasibility of broadband power line communication aboard an aircraft","authors":"M. D'amore, K. Gigliotti, M. Ricci, M. S. Sarto","doi":"10.1109/EMCEUROPE.2008.4786869","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2008.4786869","url":null,"abstract":"The broadband power line communication (BPLC) technology is proposed aboard an aircraft for the use of mobile communication and Internet access systems during the flight. The possibility of re-using the power distribution network to transmit digital signals in the frequency range between 1 MHz and 30 MHz is investigated. The analysis is performed considering the real installation configuration of the carrier channel on a power line of the C-27J transport aircraft of Alenia Aeronautica. The accurate simulation of the wire-to-wire communication channel, which includes apparatus and bulkhead connectors, allows computing the transfer function between the sending and receiving devices. The crosstalk coupling with a victim power line is also predicted. The multicarrier modulation technique is applied for the computation of the optimal bit loading of the power line carrier channel by modelling the power spectral density of the channel noise and considering the constraint represented by the maximum power available of the sending device. The preliminary results of the study prove the feasibility of the BPLC technology aboard the C-27J transport aircraft.","PeriodicalId":133902,"journal":{"name":"2008 International Symposium on Electromagnetic Compatibility - EMC Europe","volume":"11 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":"133242095","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":"Precise investigation of field homogeneity inside a GTEM cell","authors":"K. Haake, J. ter Haseborg","doi":"10.1109/EMCEUROPE.2008.4786927","DOIUrl":"https://doi.org/10.1109/EMCEUROPE.2008.4786927","url":null,"abstract":"In order to investigate the field distribution and therefore also the quality of the homogeneity of the field inside a GTEM cell, a high resolution scan has been accomplished. This is done over a frequency range of 30 MHz to 4.2 GHz with 305 frequency points. Further the SWR of the cell is been measured and the voltage amplitude ripple is calculated. From the obtained data a plot is provided that shows at which frequencies the homogeneity according to the norm is violated and at which frequencies the homogeneity of the measurement plane complies with the standard.","PeriodicalId":133902,"journal":{"name":"2008 International Symposium on Electromagnetic Compatibility - EMC Europe","volume":"141 5 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":"125833368","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}