Pub Date : 2015-09-14DOI: 10.1109/ISEMC.2015.7256344
P. Besnier, C. Lemoine, J. Sol
This paper deals with the estimation of the composite Q-factor in a reverberation chamber using one or two antennas (possibly a set of them). Most of Q-factor estimations provided in literature are based on the estimation of the ensemble average of the electric power captured at the terminal of a receiving antenna, the EM field being produced with another one. We first highlight that using two antennas and a vector network analyzer, three different estimations are possible and they are found experimentally to be almost equivalent. Second, removing one antenna the Q-factor may change mainly in the frequency range for which the Q-coefficient of an antenna is no more negligible. Furthermore a post-processing of these two types of measurements allows to extract an estimation of this Q-coefficient alone. This estimation is quite favorably compared to its theoretical estimation based on ideal random field hypothesis.
{"title":"Various estimations of composite Q-factor with antennas in a reverberation chamber","authors":"P. Besnier, C. Lemoine, J. Sol","doi":"10.1109/ISEMC.2015.7256344","DOIUrl":"https://doi.org/10.1109/ISEMC.2015.7256344","url":null,"abstract":"This paper deals with the estimation of the composite Q-factor in a reverberation chamber using one or two antennas (possibly a set of them). Most of Q-factor estimations provided in literature are based on the estimation of the ensemble average of the electric power captured at the terminal of a receiving antenna, the EM field being produced with another one. We first highlight that using two antennas and a vector network analyzer, three different estimations are possible and they are found experimentally to be almost equivalent. Second, removing one antenna the Q-factor may change mainly in the frequency range for which the Q-coefficient of an antenna is no more negligible. Furthermore a post-processing of these two types of measurements allows to extract an estimation of this Q-coefficient alone. This estimation is quite favorably compared to its theoretical estimation based on ideal random field hypothesis.","PeriodicalId":412708,"journal":{"name":"2015 IEEE International Symposium on Electromagnetic Compatibility (EMC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132700362","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 : 2015-09-14DOI: 10.1109/ISEMC.2015.7256187
I. Gil, R. Fernández-García
The electromagnetic coupling of a conventional planar inverted-F antenna (PIFA) antenna in the nearby layout traces is investigated in the 2.45 GHz industrial, scientific and medical radio band. The impact of a complementary split-ring resonator (CSRR) to reduce the coupling as well as the overall antenna performance after perturbing the ground plane is reported. 2.5D and 3D full electromagnetic simulations are used to design and analyze the proposed layouts. Experimental results validate the CSRR usefulness to significantly decrease the antenna coupling.
{"title":"Analysis of PIFA antenna coupling in nearby traces and reduction with CSRRs in PCB at 2.45 GHz","authors":"I. Gil, R. Fernández-García","doi":"10.1109/ISEMC.2015.7256187","DOIUrl":"https://doi.org/10.1109/ISEMC.2015.7256187","url":null,"abstract":"The electromagnetic coupling of a conventional planar inverted-F antenna (PIFA) antenna in the nearby layout traces is investigated in the 2.45 GHz industrial, scientific and medical radio band. The impact of a complementary split-ring resonator (CSRR) to reduce the coupling as well as the overall antenna performance after perturbing the ground plane is reported. 2.5D and 3D full electromagnetic simulations are used to design and analyze the proposed layouts. Experimental results validate the CSRR usefulness to significantly decrease the antenna coupling.","PeriodicalId":412708,"journal":{"name":"2015 IEEE International Symposium on Electromagnetic Compatibility (EMC)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115024099","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 : 2015-09-14DOI: 10.1109/ISEMC.2015.7256404
F. Happ, F. Gronwald, H. Bruns
A wave matrix formulation that describes the coupling through a planar shield of several anisotropic conducting layers is presented in detail. The approach includes all multiple reflections inside the different layers of the shield. The resulting wave matrix can be used to calculate the shielding effectiveness of the shield. As a result it is demonstrated that for specific cases the shielding effectiveness of an anisotropic multilayered shield can be approximated by the shielding effectiveness of an isotropic shield. In addition a finite structure is simulated and it is shown that the method for the infinite structure allows to correctly predict the transition from isotropic to anisotropic shielding effectiveness with respect to frequency.
{"title":"An extension of Schelkunoff's shielding theory to anisotropic conducting multilayer materials","authors":"F. Happ, F. Gronwald, H. Bruns","doi":"10.1109/ISEMC.2015.7256404","DOIUrl":"https://doi.org/10.1109/ISEMC.2015.7256404","url":null,"abstract":"A wave matrix formulation that describes the coupling through a planar shield of several anisotropic conducting layers is presented in detail. The approach includes all multiple reflections inside the different layers of the shield. The resulting wave matrix can be used to calculate the shielding effectiveness of the shield. As a result it is demonstrated that for specific cases the shielding effectiveness of an anisotropic multilayered shield can be approximated by the shielding effectiveness of an isotropic shield. In addition a finite structure is simulated and it is shown that the method for the infinite structure allows to correctly predict the transition from isotropic to anisotropic shielding effectiveness with respect to frequency.","PeriodicalId":412708,"journal":{"name":"2015 IEEE International Symposium on Electromagnetic Compatibility (EMC)","volume":"212 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124170843","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 : 2015-09-14DOI: 10.1109/ISEMC.2015.7256217
Gert-Jan Stockman, H. Rogier, D. Ginste
In this paper, a full-wave method to efficiently compute the electromagnetic interaction between two devices placed in semi-anechoic conditions is proposed. The aim of this research is the accurate and efficient reproduction of radiated immunity and emission tests in simulation. The employed technique relies on a single simulation (or measurement) of the radiation pattern of each device and allows an arbitrary relative position between the devices. The resulting procedure is practical, has a low computational cost, and shows good agreement with reference solutions.
{"title":"Efficient full-wave modeling of radiative near-field interactions in semi-anechoic conditions","authors":"Gert-Jan Stockman, H. Rogier, D. Ginste","doi":"10.1109/ISEMC.2015.7256217","DOIUrl":"https://doi.org/10.1109/ISEMC.2015.7256217","url":null,"abstract":"In this paper, a full-wave method to efficiently compute the electromagnetic interaction between two devices placed in semi-anechoic conditions is proposed. The aim of this research is the accurate and efficient reproduction of radiated immunity and emission tests in simulation. The employed technique relies on a single simulation (or measurement) of the radiation pattern of each device and allows an arbitrary relative position between the devices. The resulting procedure is practical, has a low computational cost, and shows good agreement with reference solutions.","PeriodicalId":412708,"journal":{"name":"2015 IEEE International Symposium on Electromagnetic Compatibility (EMC)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124626663","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 : 2015-09-14DOI: 10.1109/ISEMC.2015.7256214
J. Ritter, M. Benjes, Martin Murso, D. Wulf, S. Lange
The numerical simulation of wideband electromagnetic interference puts a strong emphasis on methods in time domain. The stable subgrid finite difference time domain method gives the opportunity for an efficient adaptive discretization in time and space. The MPI parallelization and in particular the GPU as well as multi-GPU implementation of this method provides a simulation tool of high benefit for the industrial daily business.
{"title":"A stable subgridding finite difference time domain method on multi-GPU cluster","authors":"J. Ritter, M. Benjes, Martin Murso, D. Wulf, S. Lange","doi":"10.1109/ISEMC.2015.7256214","DOIUrl":"https://doi.org/10.1109/ISEMC.2015.7256214","url":null,"abstract":"The numerical simulation of wideband electromagnetic interference puts a strong emphasis on methods in time domain. The stable subgrid finite difference time domain method gives the opportunity for an efficient adaptive discretization in time and space. The MPI parallelization and in particular the GPU as well as multi-GPU implementation of this method provides a simulation tool of high benefit for the industrial daily business.","PeriodicalId":412708,"journal":{"name":"2015 IEEE International Symposium on Electromagnetic Compatibility (EMC)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125048225","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 : 2015-09-14DOI: 10.1109/ISEMC.2015.7256200
Eva Karadimou, R. Armstrong, I. Adin, V. Deniau, Joseba Rodriguez, D. Galar, S. Niska, J. Tamarit
The research presented here deals with the electromagnetic compatibility in the railway environment. In particular it focuses on four research areas: the spot signalling systems, the track circuits, the GSM-R and the broadcasting services. A review of the current railway standards is followed by a research on the immunity limits, the worst case scenarios and cross acceptance EMC tests for the four areas.
{"title":"An EMC study on the interopability of the European railway network","authors":"Eva Karadimou, R. Armstrong, I. Adin, V. Deniau, Joseba Rodriguez, D. Galar, S. Niska, J. Tamarit","doi":"10.1109/ISEMC.2015.7256200","DOIUrl":"https://doi.org/10.1109/ISEMC.2015.7256200","url":null,"abstract":"The research presented here deals with the electromagnetic compatibility in the railway environment. In particular it focuses on four research areas: the spot signalling systems, the track circuits, the GSM-R and the broadcasting services. A review of the current railway standards is followed by a research on the immunity limits, the worst case scenarios and cross acceptance EMC tests for the four areas.","PeriodicalId":412708,"journal":{"name":"2015 IEEE International Symposium on Electromagnetic Compatibility (EMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131305710","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 : 2015-09-14DOI: 10.1109/ISEMC.2015.7256249
A. Ruddle, L. Low
In-service monitoring of magnetic field emissions from vehicle electrical powertrain components could provide useful information relating to the development of possible faults. Such changes may also have implications for human exposure to low frequency magnetic fields, but the permanent installation of magnetic field sensors in occupant locations is not practicable. This paper outlines a simulation-based investigation of issues relating to the estimation of occupant exposure to magnetic fields using magnetic field measurements made in the vicinity of powertrain components and identifies processing implications.
{"title":"Feasibility of estimating in-service vehicle occupant exposure to electrical powertrain magnetic fields using non-local magnetic field measurements","authors":"A. Ruddle, L. Low","doi":"10.1109/ISEMC.2015.7256249","DOIUrl":"https://doi.org/10.1109/ISEMC.2015.7256249","url":null,"abstract":"In-service monitoring of magnetic field emissions from vehicle electrical powertrain components could provide useful information relating to the development of possible faults. Such changes may also have implications for human exposure to low frequency magnetic fields, but the permanent installation of magnetic field sensors in occupant locations is not practicable. This paper outlines a simulation-based investigation of issues relating to the estimation of occupant exposure to magnetic fields using magnetic field measurements made in the vicinity of powertrain components and identifies processing implications.","PeriodicalId":412708,"journal":{"name":"2015 IEEE International Symposium on Electromagnetic Compatibility (EMC)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121624812","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 : 2015-09-14DOI: 10.1109/ISEMC.2015.7256130
S. Bauer, B. Deutschmann, G. Winkler
Ensuring product immunity against transient disturbances, that are present in the electromagnetic environment, is important to guarantee the electromagnetic compatibility (EMC) of an electronic system. Therefore, being able to predict whether a transient event interferes with the normal functionality of the electronic system and causes a malfunction, or even destruction, can help to define the right protection during the concept and development phase of the system. In this paper, a methodology predicated on the exploitation of different techniques to perform mathematical calculations and simulations that are based on models of electrical fast transients (EFT) together with the corresponding model of the real test setup is presented. This methodology can be used to estimate the interference of an integrated circuit (IC) by a transient event during the test and to predict to what extent the IC will survive sustain without getting damaged. This method can also be used to determine the optimal external and internal protection structure for an electronic system against any kind of transient disturbance.
{"title":"Prediction of the robustness of integrated circuits against EFT/BURST","authors":"S. Bauer, B. Deutschmann, G. Winkler","doi":"10.1109/ISEMC.2015.7256130","DOIUrl":"https://doi.org/10.1109/ISEMC.2015.7256130","url":null,"abstract":"Ensuring product immunity against transient disturbances, that are present in the electromagnetic environment, is important to guarantee the electromagnetic compatibility (EMC) of an electronic system. Therefore, being able to predict whether a transient event interferes with the normal functionality of the electronic system and causes a malfunction, or even destruction, can help to define the right protection during the concept and development phase of the system. In this paper, a methodology predicated on the exploitation of different techniques to perform mathematical calculations and simulations that are based on models of electrical fast transients (EFT) together with the corresponding model of the real test setup is presented. This methodology can be used to estimate the interference of an integrated circuit (IC) by a transient event during the test and to predict to what extent the IC will survive sustain without getting damaged. This method can also be used to determine the optimal external and internal protection structure for an electronic system against any kind of transient disturbance.","PeriodicalId":412708,"journal":{"name":"2015 IEEE International Symposium on Electromagnetic Compatibility (EMC)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122399709","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 : 2015-09-14DOI: 10.1109/ISEMC.2015.7256176
L. Nuño
Health protection reference levels were established for electric and magnetic fields. However, the corresponding reference levels for voltages and currents in cables could not be established in the general case, since they strongly depend on each particular situation. In this paper, health protection reference levels for voltages and currents are obtained for the relevant case of typical domestic electrical installations. Then, voltages and currents of most common signals in these installations are compared with these reference levels.
{"title":"Health protection reference levels for voltages and currents in typical domestic electrical installations","authors":"L. Nuño","doi":"10.1109/ISEMC.2015.7256176","DOIUrl":"https://doi.org/10.1109/ISEMC.2015.7256176","url":null,"abstract":"Health protection reference levels were established for electric and magnetic fields. However, the corresponding reference levels for voltages and currents in cables could not be established in the general case, since they strongly depend on each particular situation. In this paper, health protection reference levels for voltages and currents are obtained for the relevant case of typical domestic electrical installations. Then, voltages and currents of most common signals in these installations are compared with these reference levels.","PeriodicalId":412708,"journal":{"name":"2015 IEEE International Symposium on Electromagnetic Compatibility (EMC)","volume":"150 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120870578","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 : 2015-09-14DOI: 10.1109/ISEMC.2015.7256348
O. Sen, S. Cakir, S. Acak, M. Çetintaş
Conducted emission tests are always performed by the use of LISNs in laboratories in accordance with CISPR22, CISPR11 and other similar standards. However, it is not always possible to use LISNs because of some limitations. If the Equipment Under Test (EUT) has large dimensions or high currents, it is not, for most of the time, possible to send it to an EMC laboratory or to use LISNs during the test. As a consequence, usage or development of alternative conducted emission test methods are inevitable in industry. In this paper, we investigated the use of LISN simulations constructed with long ordinary cables, capacitors and resistors instead of actual LISNs. In addition, we also improved the usage of CISPR16 Voltage Probe by combining it with impedance measurements of EUT, supply and used cables.
{"title":"Alternative conducted emission measurements with LISN simulation & CISPR 16 Voltage Probe","authors":"O. Sen, S. Cakir, S. Acak, M. Çetintaş","doi":"10.1109/ISEMC.2015.7256348","DOIUrl":"https://doi.org/10.1109/ISEMC.2015.7256348","url":null,"abstract":"Conducted emission tests are always performed by the use of LISNs in laboratories in accordance with CISPR22, CISPR11 and other similar standards. However, it is not always possible to use LISNs because of some limitations. If the Equipment Under Test (EUT) has large dimensions or high currents, it is not, for most of the time, possible to send it to an EMC laboratory or to use LISNs during the test. As a consequence, usage or development of alternative conducted emission test methods are inevitable in industry. In this paper, we investigated the use of LISN simulations constructed with long ordinary cables, capacitors and resistors instead of actual LISNs. In addition, we also improved the usage of CISPR16 Voltage Probe by combining it with impedance measurements of EUT, supply and used cables.","PeriodicalId":412708,"journal":{"name":"2015 IEEE International Symposium on Electromagnetic Compatibility (EMC)","volume":"26 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120920188","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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