Pub Date : 2018-07-01DOI: 10.1109/EMCSI.2018.8495334
Scott Piper, Laura L. Ball, M. Mandziuk
The automobiles of today offer smaller architectures and electric motor driven propulsion systems to offer fuel efficiencies and reduced air pollution. These vehicles, at times, integrate major electrical components into the vehicle structure placing these components near vehicle occupants. With this practice, there is the concern of exposing occupants to the magnetic field generated by these nearby electrical components due to the high current. The International Commission on Non-Ionizing Radiation Protection (ICNIRP) established guidelines for general public exposure to electric and magnetic fields which offers guidance on potential health effects when humans are exposed to Non-Ionizing Radiation. In this paper, the application of these guidelines in an automotive setting will be discussed along with some of the challenges involved with applying this guidance. Some conditions at the basis of the ICNIRP guidelines do not align with the automotive environment, such as close proximity of current-carrying wires resulting in localized fields and maximum coupling to the exposed individual. This, along with some of the conservative assumptions made in the establishment of the Reference Levels, can pose a challenge when attempting to define magnetic field emission limits inside the vehicle.
{"title":"Numerical Modeling Application of ICNIRP Guidelines to Automobile Occupant Protection","authors":"Scott Piper, Laura L. Ball, M. Mandziuk","doi":"10.1109/EMCSI.2018.8495334","DOIUrl":"https://doi.org/10.1109/EMCSI.2018.8495334","url":null,"abstract":"The automobiles of today offer smaller architectures and electric motor driven propulsion systems to offer fuel efficiencies and reduced air pollution. These vehicles, at times, integrate major electrical components into the vehicle structure placing these components near vehicle occupants. With this practice, there is the concern of exposing occupants to the magnetic field generated by these nearby electrical components due to the high current. The International Commission on Non-Ionizing Radiation Protection (ICNIRP) established guidelines for general public exposure to electric and magnetic fields which offers guidance on potential health effects when humans are exposed to Non-Ionizing Radiation. In this paper, the application of these guidelines in an automotive setting will be discussed along with some of the challenges involved with applying this guidance. Some conditions at the basis of the ICNIRP guidelines do not align with the automotive environment, such as close proximity of current-carrying wires resulting in localized fields and maximum coupling to the exposed individual. This, along with some of the conservative assumptions made in the establishment of the Reference Levels, can pose a challenge when attempting to define magnetic field emission limits inside the vehicle.","PeriodicalId":120342,"journal":{"name":"2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity (EMC, SI & PI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115183199","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 : 2018-07-01DOI: 10.1109/EMCSI.2018.8495446
K. Rozanov, M. Koledintseva
Formulation for Electromagnetic Wave Absorber Performance
电磁波吸收器性能配方
{"title":"Quality Criteria for Electromagnetic Wave Absorbers","authors":"K. Rozanov, M. Koledintseva","doi":"10.1109/EMCSI.2018.8495446","DOIUrl":"https://doi.org/10.1109/EMCSI.2018.8495446","url":null,"abstract":"Formulation for Electromagnetic Wave Absorber Performance","PeriodicalId":120342,"journal":{"name":"2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity (EMC, SI & PI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115593808","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 : 2018-07-01DOI: 10.1109/EMCSI.2018.8495160
Han Gao, S. De, Brent Beingessner, Steve Payne, J. Drewniak
Nowadays, plated-through hole (PTH) via structures are extensively used in printed circuit boards (PCBs). As the data rate increases to Gigahertz range, the via stub resonance effect shows up, which will cause signal distortion and lead to signal integrity issue. In this paper, the impact caused by backdrill mis-registration issue is investigated.
{"title":"Mis-registration of Sliver Type Backdrill Impact in High Speed Signal Propagation","authors":"Han Gao, S. De, Brent Beingessner, Steve Payne, J. Drewniak","doi":"10.1109/EMCSI.2018.8495160","DOIUrl":"https://doi.org/10.1109/EMCSI.2018.8495160","url":null,"abstract":"Nowadays, plated-through hole (PTH) via structures are extensively used in printed circuit boards (PCBs). As the data rate increases to Gigahertz range, the via stub resonance effect shows up, which will cause signal distortion and lead to signal integrity issue. In this paper, the impact caused by backdrill mis-registration issue is investigated.","PeriodicalId":120342,"journal":{"name":"2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity (EMC, SI & PI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115836161","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":"Effective Meetings FR-AM-1 TC1 Leadership Workshop Long Beach, CA","authors":"J. La Salle","doi":"10.1109/emcsi.2018.8495348","DOIUrl":"https://doi.org/10.1109/emcsi.2018.8495348","url":null,"abstract":"Agenda ▸Housekeeping ▸Some Facts ▸Cost of Meetings ▸When Not to Hold Meetings ▸Common Meeting Problems ▸Common Road Blocks ▸Meeting Alternatives ▸Meeting Process ▸Planning Phase ▸Conducting Phase ▸Follow-up Phase","PeriodicalId":120342,"journal":{"name":"2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity (EMC, SI & PI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114264945","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":"Microscopic Field Effects at the NanoScale Level and Their Implications for Device Design in High-Speed Electronics","authors":"C. Krowne","doi":"10.1109/EMCSI.2018.8495436","DOIUrl":"https://doi.org/10.1109/EMCSI.2018.8495436","url":null,"abstract":"Materials & Devices - Microscopic Effects Important • Phase Change & Metal-Insulation Transition Materials • Superconductive Materials & Devices • Nanowires, NanoTubes, and NanoCables (1D systems) • Electric Materials & Devices 1. Ferroelectric (FM), 2. Ant-FE, and electron charge effects like Coulomb blockage • Negative Index Materials • Magnetic Materials & Devices 1. Ferromagnetic (FM), 2. Ferrimagnetc (FiM), 3. Ant-FM and 4. Correlated electron system magnetics • Single and few atomic layered materials; e.g., graphene, BN, MoS<inf>2</inf> (2D systems) • Topological Insulators","PeriodicalId":120342,"journal":{"name":"2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity (EMC, SI & PI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123594362","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 : 2018-07-01DOI: 10.1109/EMCSI.2018.8495202
M. A. Dolatsara, J. Hejase, D. Becker, M. Swaminathan
Improvements in high frequency signal transmission places requirements on meticulous jitter modeling and prediction techniques, which have to provide precision below 1 ps. In general timing jitter is divided into random and deterministic jitter, where the latter includes data dependent jitter, which is the focus of this paper, since it can be the dominant cause of jitter and it has proven to be challenging to model. Traditionally, jitter arising in eye-diagrams of high speed channels is modeled using a transient simulation with a length of thousands or millions of bits. This approach can be very time consuming. Hence, statistical eye analysis techniques are developed, providing for fast prediction of eye diagram and jitter [1]. However these techniques are only applicable to linear systems, which can be an important constituent for jitter in high speed channel simulation.
{"title":"Development of Polynomial Chaos Based Surrogate Models for Channel Simulation","authors":"M. A. Dolatsara, J. Hejase, D. Becker, M. Swaminathan","doi":"10.1109/EMCSI.2018.8495202","DOIUrl":"https://doi.org/10.1109/EMCSI.2018.8495202","url":null,"abstract":"Improvements in high frequency signal transmission places requirements on meticulous jitter modeling and prediction techniques, which have to provide precision below 1 ps. In general timing jitter is divided into random and deterministic jitter, where the latter includes data dependent jitter, which is the focus of this paper, since it can be the dominant cause of jitter and it has proven to be challenging to model. Traditionally, jitter arising in eye-diagrams of high speed channels is modeled using a transient simulation with a length of thousands or millions of bits. This approach can be very time consuming. Hence, statistical eye analysis techniques are developed, providing for fast prediction of eye diagram and jitter [1]. However these techniques are only applicable to linear systems, which can be an important constituent for jitter in high speed channel simulation.","PeriodicalId":120342,"journal":{"name":"2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity (EMC, SI & PI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124498798","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 : 2018-07-01DOI: 10.1109/EMCSI.2018.8495295
Dave W. P. Thomas
This article consists only of a collection of slides from the author's conference presentation.
本文仅由作者在会议上发表的一些幻灯片组成。
{"title":"EMC between Communication Circuits and Power Systems in the Frequency Range 2-150 kHz","authors":"Dave W. P. Thomas","doi":"10.1109/EMCSI.2018.8495295","DOIUrl":"https://doi.org/10.1109/EMCSI.2018.8495295","url":null,"abstract":"This article consists only of a collection of slides from the author's conference presentation.","PeriodicalId":120342,"journal":{"name":"2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity (EMC, SI & PI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121900970","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 : 2018-07-01DOI: 10.1109/EMCSI.2018.8495354
Xin Huang, Zhichao Wang, Ji Chen, Jianfeng Zheng
Tissue heating due to radio frequency (RF) energy absorption in human body for patients in a Magnetic Resonance Imaging (MRI) environment is one of the primary concerns about MRI related safety issues for patients, especially with the presence of sizable metal implants such as circular external fixation devices. This paper proposes a novel method to evaluate the MRI RF induced heating effects of circular external fixation devices utilizing an innovative leg phantom. A number of essential geometrical parameters, i.e. number of screws and wires, ring frame diameter, strut length, and insertion angle were numerically investigated to study the RF induced heating mechanism and behaviors of circular external fixation devices. Numerical results suggest that non-wire configuration with fewer screws, large ring frame size, relatively large strut length and the maximum insertion angle pointing outwards may lead to the worst case MRI RF coil induced heating. The peak spatial average specific absorption rate (SAR) over 1 gram can approach 341.3 W/kg with a 2 W/kg whole body SAR.
{"title":"Numerical Study on MRI RF Heating for Circular External Fixators under 1.5T MRI","authors":"Xin Huang, Zhichao Wang, Ji Chen, Jianfeng Zheng","doi":"10.1109/EMCSI.2018.8495354","DOIUrl":"https://doi.org/10.1109/EMCSI.2018.8495354","url":null,"abstract":"Tissue heating due to radio frequency (RF) energy absorption in human body for patients in a Magnetic Resonance Imaging (MRI) environment is one of the primary concerns about MRI related safety issues for patients, especially with the presence of sizable metal implants such as circular external fixation devices. This paper proposes a novel method to evaluate the MRI RF induced heating effects of circular external fixation devices utilizing an innovative leg phantom. A number of essential geometrical parameters, i.e. number of screws and wires, ring frame diameter, strut length, and insertion angle were numerically investigated to study the RF induced heating mechanism and behaviors of circular external fixation devices. Numerical results suggest that non-wire configuration with fewer screws, large ring frame size, relatively large strut length and the maximum insertion angle pointing outwards may lead to the worst case MRI RF coil induced heating. The peak spatial average specific absorption rate (SAR) over 1 gram can approach 341.3 W/kg with a 2 W/kg whole body SAR.","PeriodicalId":120342,"journal":{"name":"2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity (EMC, SI & PI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124272098","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 : 2018-07-01DOI: 10.1109/EMCSI.2018.8495445
J. Yan, J. Dawson, A. Marvin
The ability of an enclosure to protect its contents from electromagnetic interference is quantified by its shielding effectiveness. Previous research has proved that the contents of an enclosure may greatly change the internal field and thus the shielding effectiveness. The power balance method is an efficient approach to analyze shielding problems of populated enclosures. One assumption of the power balance method is that in the steady state, the electromagnetic field in an enclosure is homogeneous. In actual circumstances, however, the presence of losses in an enclosure often compromises the field homogeneity and the power balance method may become inaccurate. A diffusion equation approach has been previously proposed to overcome this problem. In this paper, we predict the internal electromagnetic field of a populated enclosure by using the diffusion model, and compare them with the fields obtained by the power balance method, a fullwave electromagnetic solver and measurements, to demonstrate its efficacy. Comparisons between the diffusion model and the power balance method show that for populated enclosures, the internal electromagnetic field varies with position and that the diffusion model allows this to be observed.
{"title":"Estimating Reverberant Electromagnetic Fields in Populated Enclosures by Using the Diffusion Model","authors":"J. Yan, J. Dawson, A. Marvin","doi":"10.1109/EMCSI.2018.8495445","DOIUrl":"https://doi.org/10.1109/EMCSI.2018.8495445","url":null,"abstract":"The ability of an enclosure to protect its contents from electromagnetic interference is quantified by its shielding effectiveness. Previous research has proved that the contents of an enclosure may greatly change the internal field and thus the shielding effectiveness. The power balance method is an efficient approach to analyze shielding problems of populated enclosures. One assumption of the power balance method is that in the steady state, the electromagnetic field in an enclosure is homogeneous. In actual circumstances, however, the presence of losses in an enclosure often compromises the field homogeneity and the power balance method may become inaccurate. A diffusion equation approach has been previously proposed to overcome this problem. In this paper, we predict the internal electromagnetic field of a populated enclosure by using the diffusion model, and compare them with the fields obtained by the power balance method, a fullwave electromagnetic solver and measurements, to demonstrate its efficacy. Comparisons between the diffusion model and the power balance method show that for populated enclosures, the internal electromagnetic field varies with position and that the diffusion model allows this to be observed.","PeriodicalId":120342,"journal":{"name":"2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity (EMC, SI & PI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125323342","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 : 2018-07-01DOI: 10.1109/EMCSI.2018.8495239
B. Narayanasamy, F. Luo, Yongbin Chu
Passive EMI filters occupy significant volume in a power converter. Active EMI Filters (AEF) are a means to reduce the volume of passive filter components. It is essential to identify the boundaries within which the AEF could be designed and the possible volume reduction that is achievable. This work involves the modeling and stability analysis of Feedback Voltage Sense Current Cancellation (VSCC) Active EMI Filters. Type of applications that benefit from using voltage sensing over current sensing for is identified. An example of a non-PFC AC-DC converter is considered. Noise sensing networks comprising high voltage capacitors and high pass filter networks are designed for sensing noise. The overall filter implementation is modeled, and stability analysis is carried out. Suitable compensation networks are designed to make the filter viable. Major bottlenecks that limit the maximum attenuation are identified and general guidelines for the application of Feedback VSCC topology are proposed.
{"title":"Modeling and Stability Analysis of Voltage Sensing based Differential Mode Active EMI Filters for AC-DC Power Converters","authors":"B. Narayanasamy, F. Luo, Yongbin Chu","doi":"10.1109/EMCSI.2018.8495239","DOIUrl":"https://doi.org/10.1109/EMCSI.2018.8495239","url":null,"abstract":"Passive EMI filters occupy significant volume in a power converter. Active EMI Filters (AEF) are a means to reduce the volume of passive filter components. It is essential to identify the boundaries within which the AEF could be designed and the possible volume reduction that is achievable. This work involves the modeling and stability analysis of Feedback Voltage Sense Current Cancellation (VSCC) Active EMI Filters. Type of applications that benefit from using voltage sensing over current sensing for is identified. An example of a non-PFC AC-DC converter is considered. Noise sensing networks comprising high voltage capacitors and high pass filter networks are designed for sensing noise. The overall filter implementation is modeled, and stability analysis is carried out. Suitable compensation networks are designed to make the filter viable. Major bottlenecks that limit the maximum attenuation are identified and general guidelines for the application of Feedback VSCC topology are proposed.","PeriodicalId":120342,"journal":{"name":"2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity (EMC, SI & PI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120999832","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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