2007 ieee international symposium on electromagnetic compatibility

More documents

Recommendations

Info

40EMC <strong>2007</strong> ADVANCE PROGRAMStephen Gedney, University of Kentucky; Chong Luo, University ofKentucky; Bryan Guernsey, University of Kentucky; J. Alan Roden,Aerospace Corporation; Robert Crawford, Aerospace Corporation; JeffreyMiller, Aerospace Corporation; and Stephen Gedney, University of KentuckyA discontinuous Galerkin Finite-Element Time-Domain method is presented.The method is based on a high order finite element discretizationof Maxwell’s time-dependent curl equations. The global volume isdecomposed into contiguous sub-domains of finite-elements with independentfunction expansions. The fields are coupled across sub-domainboundaries by enforcing the tangential field continuity. This leads to alocally implicit, globally explicit difference operator that provides anefficient high-order, accurate, time-dependent solution.An Efficient Implementation of Parallel FDTDXiaohe Chen; Michael Cracraft; Yaojiang Zhang; Jianmin Zhang; andJames Drewniak, — University of Missouri-Rolla; Bruce Archambeault,IBM Corporation; Samuel Connor, IBM CorporationA parallel FDTD algorithm has been realized based on 1-D domaindecomposition. Data communication among different adjacent processorsis manipulated by a self-defined C++ class, MPI FDTD, in whichportable functions of the message passing interface (MPI) library areused. The details of the implementation are discussed. EMC applicationsof the code such as cross talk of traces, cavity, vias, as well as anIC package are provided to demonstrate the parallel efficiency.POSTER SESSION 01: SYSTEM EMCEMC Management in a High Power Pulse LaserJoel Raimbourg, CEAThe Ligne d’Integration Laser (LIL) is the biggest European laser facility.The plant is a 150 by 80 meter building which includes 8 highpower lasers and a target chamber for experiments. We need to stock20 Mjoules in capacity banks and commute 250 kA to feed the laserbeams. The 60 kJ of light power are concentrated on one target forphysics experiments. This generates electromagnetic pulses with levelsof up to 10 kV/m and frequencies up to 3 GHz. Many electromagneticvictims (such as laser beam diagnostic detectors) need to functionunder serious interference conditions. This paper gives an overview ofthe electromagnetic compatibility management of this project. One ofthe principal difficulties is the single shot aspect of the process. Allelectromagnetic victims must work under normal conditions duringthe experiment. A temporary dysfunction is not permitted in our case.EMI Sub-System Level Emission Limits Based on StatisticAnalysisQin Yu; and Zijue Zhang, — Alcatel-LucentProduct EMI pre-compliance evaluation becomes more importantnowadays than before due to the growing industrial trend in outsourcingOEM. Precompliance testing involves measuring the radiatedand power port conducted emissions of a complex system at theunit, shelf and/or sub-system levels. Defining the appropriate EMIlimits at the sub-system level is crucial for the compliance of theoverall system. The suppliers rely on the product specifications todesign their products. If the sub-system level limit specified is tooconservative, the product would be over designed and the cost wouldgo up. However, if the sub-system level limit specified is too loose,the system EMI compliance will be in jeopardy. This paper utilizedthe statistical modeling recommended by ITU to estimate the maximumincrease in the radiated and power-line conducted emissionsfrom a multi-unit system. The results are useful in determiningappropriate product sub-system level EMI limits and enhancingengineering judgment for compliance evaluation. The sub-systemlevel limits based on the statistical analysis provide plausible andrational criteria for sub-system level compliance evaluation and preventthe product from being over-designed.Development of Apparatus for Measuring ElectromagneticShielding Effectiveness at the GHz Frequency BandJong-Hwa Kwon, ETRI; Jae Ick Choi, ETRI; and Jong Gwan Yook, YonseiUniversityWe have designed and manufactured a flanged double ridged waveguideas a sample holder for measuring the electromagnetic shieldingeffectiveness (SE) of planar material in broadband frequency rangesup to 10 GHz. The newly proposed sample holder in this paper hasa tapered section for broadband impedance matching to the 50 ohmcoaxial feed section. And we compared the measurement results withthe simulation results by using the commercial software tool. Theresults from the designed sample holder agree well with those fromthe fabricated ones when considering the design specification of S11< -20 dB at the operational frequency range. Also, to verify themeasuring apparatus, we have tried to measure and compare the SEsof commercial shielding material made of 100% NiC by the proposedsample holder and ASTM D4935 holder.Analysis of the Shielding Effectiveness of a RectangularCavity with Apertures to an ESD Radiated Field by theTransmission Line MethodLiuping Wang; and Yougang Gao, — Beijing University of Posts andTelecommunicationsIn this article, we first analyze the characteristics of an electrostaticdischarge (ESD) electromagnetic pulse (EMP) and introduce the basictheory of the transmission line method (TLM), which is used to analyzethe shielding effectiveness of rectangular enclosures with apertures.The calculations show that the TML shielding efficiency contoursare in agreement with the FDTD calculated results. Then weexpand the fundamental formulas to deal with the cases of roundholes, multi-holes, and arbitrary angles of polarization.Distribution and Characteristic of the Disturbances in theDriving System of a Fuel Cell BusBo Zhang; Jinliang He; Shaofeng Yu; Wei Li; Rong Zeng; and YongHuang, — Tsinghua University; Jae-bok Lee; and Sug-hun Chang, —Korea Electrotechnology Research InstituteThis paper analyzes the distribution and the characteristic of the disturbancesin the driving system of a fuel cell bus by measuring boththe conductive and radiative emissions. A statistical method wasused to investigate the parameters of the typical voltage waveforms,which were compared with the standard ones in ISO7637-2. Theresults are useful for the further investigation of the EMC problemsin the fuel cell bus.Electromagnetic Cross Coupling between Ground SupportPower Lines and Spacecraft Umbilical CablesJ. Chai, The Aerospace Corporation; E. Dressel, N/A; and D. Taylor, N/AThe transients recorded by the hybrid On-line Lightning MonitoringSystem (OLMS) led to the investigation of the electromagnetic crosscoupling between the ground support power lines and spacecraftumbilical cables. It was discovered that the associated Power-Onevents had sufficient temporal association and amplitude correlationto cause the recorded transients, and some recommendations weremade to further address the issue.©<strong>2007</strong> IEEE www.emc<strong>2007</strong>.org
EMC <strong>2007</strong> ADVANCE PROGRAM 41Development of a Maritime Electronic Warfare and SensorSystems EMI Mathematical Assessment CapabilityGiuseppina Dall’Armi-Stoks, DSTO; Guy Morris, N/A; and Annie Yau,N/AElectronic Warfare and Sensor (EW&S) Systems have to meet theiroperational capability in a maritime environment. However, withthe ever increasing number of EW&S systems being fitted onboardmaritime platforms, and the reality that maritime platforms arebeing required to operate jointly, the likelihood of adverse electromagneticinterference (EMI) between EW&S systems is prominent.Investigating EW&S systems’ electromagnetic compatibility (EMC)can be an extremely complex problem. If EW&S system EMC is notaddressed and managed in a correct procedure, the solutions to minimizeEMI problems can be expensive and more importantly canaffect the operational capability of the systems. What has been recommended,by many in the EMC community, as a means of managingthe complexity of systems’ electromagnetic interference and/orelectromagnetic compatibility (EMI/EMC) problems, is that theEMI/EMC must be assessed at the planning, designing and development,installation, and/or operation of electrical and electronicequipment stages, each governed by an EMI control plan.EMC Analysis for Sustainer Electric Propulsions and DeepSpace Communication SystemsNikolay Vazhenin; Andrey Plokhikh; Alexey Volkovsky; and GalinaSoganova, — RIAMEA general solution for the problem of EMC calculation as applied to thesustainer electric propulsion (EP) in rockets and deep-space radio communicationsystems is considered in its classical statement. EP isdescribed as a source of unintended noise of artificial origin of the whiteGaussian noise type with the known spectral characteristics of radiation.An onboard receiver of the deepspace communication radio link is consideredas the receptor, the noise susceptibility of which is assessed bythe variation of the radio link quality parameters – communicationrange and information rate. The calculation results for the EP emissionsusceptibility of both information channel and phase synchronizationchannel of the deep space communication radio link designed for aspacecraft in the orbit of Mars are presented. Recommendations aregiven for securing EP EMC with the onboard systems of a spacecraft.Effective Technique for System Level Prediction of theRadiated Emissions of Electronic Devices and Cablesinside Satellites from Unit Level MeasurementsFrancisco Saez de Adana; Manuel Felipe Cátedra; and Jose Manuel Gomez,— Universidad de Alcala; and Raj Mittra, Pennsylvania State UniversityA method to predict the electromagnetic emissions from unknownelectronic devices and cables at the system level is presented in thispaper. The method is based on measurements at the unit level,equivalent source decomposition, and numerical electromagneticsimulation of the integrated system. The approach is also valid forthe analysis of cables and conductors carrying electrical currents fromthe interior to the exterior of the measurement surface (Huygen’s surface)and is useful for the prediction of the electromagnetic compatibilitycharacteristics of electronic devices inside satellites.POSTER SESSION 02: PCB AND IC EMCEffectiveness of PCB Simulation in Teaching High-SpeedDigital DesignJianjian Song; Edward Wheeler; and Keith Hoover, — Rose-HulmanInstitute of TechnologySignal integrity for high-speed digital design at the printed-circuit board(PCB) level is an issue of increasing importance in electronic design thatrequires coverage in more undergraduate classes. This paper describeshow simulation tools offer an economical alternative to hardware-basedexperiments in undergraduate courses in high speed design. A simulationtool, Hyperlynx, has been used in our high-speed digital design classto help students understand fundamental concepts and ideas in signalintegrity as well as to experiment with different techniques for maintainingsignal integrity in a PCB design. We present examples in whichtraditional approaches employing only closed-form expressions can beeffectively supplemented with simulation to help students gain a deeperunderstanding of basic concepts such as time-of-flight, parasitic parameters,nonlinear driver and receiver models, characteristic impedance, perunitlengthparameters, termination techniques, and crosstalk.Transmission Line Attenuation-Impedance Realistic CornerModeling by Scaled-Down Tolerence Boundary ScanZhaoqing Chen, IBM CorprationThis paper discusses a method to generate transmission line attenuationimpedancerealistic corner models by a scaled-down tolerance boundaryscan. Based on nominal and tolerance specifications of the transmissionline physical and geometric parameters, the scaled-down toleranceboundary scan is used to find the realistic corners in the attenuationimpedancespace. The tolerance scaling factor is determined or verifiedby comparing the derived corners with the attenuation-impedance distributionby Monte Carlo statistical electromagnetic simulations. Thisscaling factor can be used for similar structures in future applications.The system eye diagrams based on different bounding models are shown.Impact of Linear Regulator Topology on Integrated CircuitEmissionsKevin Lavery, Texas InstrumentsThe type of linear, on-chip voltage regulator is important to themeasured emissions from a device. A p-channel VREG is foundsuperior to an n-channel VREG in terms of suppressing emissions.Degree of Unbalance about Earth and Radiated Emission ofDifferential Type Microstrip Line in GHz BandMasahiro Shiota; Kiyotaka Matsubara; and Masamitsu Tokuda, —Musashi Institute of Technology; and Chiharu Miyazaki, MitsubishiElectric CorporationBalance-unbalance conversion factors and radiated emissions from differentialtype microstrip lines (DML) have not been examined in thefrequency range above 1 GHz, because it is difficult to obtain the balunthat can be used in GHz band. In this paper, we tried to measure themin the frequency range above 1 GHz by using a mode analysis functionof a network analyzer instead of the balun, and compared the measurementswith the calculated values by using the 4-terminal pair networkschain matrix theory. The comparison results confirmed that this calculationmethod is effective in the frequency range above 1 GHz.A Scalable Model of Board to FPC Interconnect UsingNeural NetworksHoon Hwangbo, Sungkyunkwan UniversityIn this paper, I propose the equivalent circuit model which includes theboard to flexible printed circuit (FPC) connector transition region andthe FPC connector to FPC cable transition region. Full wave simulationsof the FPC interfaces are performed and the s-parameters of the simulatorsare compared to those of the vector network analyzer (VNA) measurements.The simulation shows very similar s-parameters compared tothe VNA measurements verifying it as the reference tool for the equiva-©<strong>2007</strong> IEEE www.emc<strong>2007</strong>.org
Page 3 and 4: WELCOME FROM THE CHAIRJanet O’Nei
Page 5 and 6: Why Meet The StandardsWhen You Can
Page 7 and 8: Come see us at theIEEE EMC Symposiu
Page 9 and 10: EMC 2007 ADVANCE P
Page 14 and 15: 14EMC 2007 ADVANCE
Page 39: EMC 2007 ADVANCE P
Page 45 and 46: WORKSHOPS - 8 and 9 July 20
Page 53 and 54: 10'IEEE EMC SYMPOSIUMJULY 10-12, <s
Page 57 and 58: SOCIAL ACTIVITIESEMC 2007</

2007 ieee international symposium on electromagnetic compatibility

Create successful ePaper yourself

Delete template?

Save as template?