2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity (EMC, SI & PI)最新文献_第4页

Characterization of Novel Magnetically Loaded Flocked Carbon Fiber Microwave Absorber 新型磁加载蜂群碳纤维微波吸收体的特性研究

2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity (EMC, SI & PI) Pub Date : 2018-07-01 DOI: 10.1109/EMCSI.2018.8495186

H. Tran, T. Le, B. Pejcinovic, Jeffrey T Brown, R. Doneker, K. G. Thompson

{"title":"Characterization of Novel Magnetically Loaded Flocked Carbon Fiber Microwave Absorber","authors":"H. Tran, T. Le, B. Pejcinovic, Jeffrey T Brown, R. Doneker, K. G. Thompson","doi":"10.1109/EMCSI.2018.8495186","DOIUrl":"https://doi.org/10.1109/EMCSI.2018.8495186","url":null,"abstract":"The development of a novel microwave absorber material utilizing mm-length carbon fibers (CF) is reported. The CF are deposited electrostatically using the flocking process. Micron-sized ferrite beads are then deposited on tips of carbon fibers. The material is lightweight with density of ~0.32 g/in2and its thickness can vary from one to several millimeters. Its absorption is broadband and tunable with respect to frequency response and amount of absorption. The absorber was characterized in X-band using NRL arch measurement in an anechoic chamber. The material exhibited broadband attenuation ranging from around −10 dB at the edges of X-band to a peak of −46 dB at 11.1 GHz. Absorber complex permittivity and permeability were extracted using waveguide measurements. Electromagnetic simulations utilizing extracted parameters were compared with measured data and good agreement was found. Overall extraction process was successfully verified by comparison with a known commercial absorber material. The absorber performance compares favorably with existing solutions.","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":"127567756","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: 5

Research on Disturbance Voltage of Secondary Cables Due to a Circuit Breaker Ground Fault in UHVDC Convertor Substation 特高压直流变电所断路器接地故障对二次电缆扰动电压的研究

2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity (EMC, SI & PI) Pub Date : 2018-07-01 DOI: 10.1109/EMCSI.2018.8495306

Lei Yan, Weidong Zhang, Zhang Zhaohua, Weidong Shi, P. Kang, Lei Shi

引用次数: 0

Hybrid Conductive Concrete Structures for EMP Protection of Resiliency Critical Infrastructure Facilities 弹性关键基础设施电磁脉冲防护的混合导电混凝土结构

2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity (EMC, SI & PI) Pub Date : 2018-07-01 DOI: 10.1109/EMCSI.2018.8495392

L. Nguyen, M. Caruso, M. Bergstrom, D. McGaw

引用次数: 2

Effective Meetings FR-AM-1 TC1 Leadership Workshop Long Beach, CA 有效会议FR-AM-1 TC1领导力研讨会长滩，CA

2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity (EMC, SI & PI) Pub Date : 2018-07-01 DOI: 10.1109/emcsi.2018.8495348

J. La Salle

引用次数: 0

Microscopic Field Effects at the NanoScale Level and Their Implications for Device Design in High-Speed Electronics 纳米尺度下的微观场效应及其对高速电子器件设计的意义

2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity (EMC, SI & PI) Pub Date : 2018-07-01 DOI: 10.1109/EMCSI.2018.8495436

C. Krowne

引用次数: 0

Development of Polynomial Chaos Based Surrogate Models for Channel Simulation 基于多项式混沌的信道仿真代理模型的发展

2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity (EMC, SI & PI) Pub Date : 2018-07-01 DOI: 10.1109/EMCSI.2018.8495202

M. A. Dolatsara, J. Hejase, D. Becker, M. Swaminathan

引用次数: 0

EMC between Communication Circuits and Power Systems in the Frequency Range 2-150 kHz 2- 150khz频率范围内通信电路和电力系统之间的电磁兼容

2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity (EMC, SI & PI) Pub Date : 2018-07-01 DOI: 10.1109/EMCSI.2018.8495295

Dave W. P. Thomas

引用次数: 0

Numerical Study on MRI RF Heating for Circular External Fixators under 1.5T MRI 1.5T MRI下圆形外固定物MRI射频加热数值研究

2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity (EMC, SI & PI) Pub Date : 2018-07-01 DOI: 10.1109/EMCSI.2018.8495354

Xin Huang, Zhichao Wang, Ji Chen, Jianfeng Zheng

{"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}

引用次数: 1

Estimating Reverberant Electromagnetic Fields in Populated Enclosures by Using the Diffusion Model 用扩散模型估计密集围场中的混响电磁场

2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity (EMC, SI & PI) Pub Date : 2018-07-01 DOI: 10.1109/EMCSI.2018.8495445

J. Yan, J. Dawson, A. Marvin

{"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}

引用次数: 3

Modeling and Stability Analysis of Voltage Sensing based Differential Mode Active EMI Filters for AC-DC Power Converters 基于电压传感的交直流电源变换器差分型有源EMI滤波器建模及稳定性分析

2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity (EMC, SI & PI) Pub Date : 2018-07-01 DOI: 10.1109/EMCSI.2018.8495239

B. Narayanasamy, F. Luo, Yongbin Chu

引用次数: 8