2001 IEEE EMC International Symposium. Symposium Record. International Symposium on Electromagnetic Compatibility (Cat. No.01CH37161)

13-17 Aug. 2001

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  • 2001 IEEE EMC International Symposium [front matter]

    Publication Year: 2001, Page(s):i - vii
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  • The continuing challenge of spacecraft ESD

    Publication Year: 2001
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    Summary form only given. This paper describes the mechanisms of charge accumulation and discharge propagation, with examples of resulting spacecraft damage. Test methods and mitigation techniques are discussed. The point is made that the space ESD threat has not gone away, and the relevant satellite specifications are becoming increasingly strict and hard to meet, constituting a continuing major c... View full abstract»

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  • Exhibitors

    Publication Year: 2001, Page(s):1347 - 1354
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  • Author index

    Publication Year: 2001, Page(s):1366 - 1373
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  • Title index

    Publication Year: 2001, Page(s):1374 - 1381
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  • Peak and average RF safety compliance levels near radio base station antennas-prediction formulas and numerical validation

    Publication Year: 2001, Page(s):780 - 785 vol.2
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB) | HTML iconHTML

    A numerical analysis of different classes of radio base station antennas has been carried out to validate power density prediction formulas for the assessment of the RF safety compliance at basestation sites. Measuring or estimating the equivalent incident power density can assess the compliance distance near radio basestation antennas. Formulas for the prediction of the average or peak equivalent... View full abstract»

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  • New guidance on EMC-related functional safety

    Publication Year: 2001, Page(s):774 - 779 vol.2
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB) | HTML iconHTML

    The Institution of Electrical Engineers (IEE, London, UK) has published a professional guidance document on "EMC and Functional Safety". This issue is becoming more important as more safety-related functions are controlled by electronics, as the electromagnetic environment worsens, and as electronic devices become more susceptible to interference. Meeting EMC immunity standards (e.g. those under E... View full abstract»

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  • The planning and implementation of a EMC successful product safety program

    Publication Year: 2001, Page(s):771 - 773 vol.2
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    Planning a project is no small task regardless of the product type or scale. EMC/product safety projects are no exception. In fact these projects represent large efforts even on small projects. Many factors involved with the project are out of the engineers control. Some of these include, but are not limited to, hardware design, vendors, suppliers, regulatory and testing groups. On some level the ... View full abstract»

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  • Evaluation of SMT decoupling design in a functioning high-speed PCB

    Publication Year: 2001, Page(s):1097 - 1101 vol.2
    Cited by:  Papers (3)
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    SMT decoupling capacitor location in DC power bus design is a critical design choice. Experimental evaluation of SMT decoupling design is presented in this work for a functioning high-speed PCB transmitting 1.0625 Gb/s serial data. SMT decoupling capacitors were removed in several steps while the swept-frequency |S21| and power bus noise were monitored. It was found that the SMT decoupl... View full abstract»

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  • Evaluation of e-field uniformity for radiated immunity testing in a reverberation chamber

    Publication Year: 2001, Page(s):768 - 770 vol.2
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (256 KB) | HTML iconHTML

    In using a reverberation chamber for radiated immunity testing, it is important to determine the number of discrete steps through which the stirrer rotates and the number of probe locations for a given test volume in the chamber. This is because they affect the uniformity and calibration of the field in the test volume. The authors experimentally evaluated the effect of the numbers of stirrers and... View full abstract»

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  • Modelling field to equipment coupling in mode stirred chambers

    Publication Year: 2001, Page(s):762 - 767 vol.2
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    The modelling of an electromagnetic field coupling to electronic equipment in a mode stirred chamber is studied from a statistical point of view. A standard a priori model for a random field is compared to computations using modal expansions. A "physical optics" approximation is introduced which allows for analytical computation of a modal expansion accounting for the presence of a mode stirrer View full abstract»

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  • Image and return current modeling of PCB traces for radiated emissions

    Publication Year: 2001, Page(s):927 - 932 vol.2
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (592 KB) | HTML iconHTML

    This paper establishes that the image current spread induced on a ground plane by a balanced PCB trace is several times wider than the return current spread of an unbalanced PCB trace. The magnitude of the image current, unlike that of the return current, is not only very small but it also has a nonuniform flow pattern similar to eddy current in a transformer. Therefore, the combined radiated emis... View full abstract»

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  • Methods for identifying causes of EMI emissions from switched mode power applications

    Publication Year: 2001, Page(s):1092 - 1096 vol.2
    Cited by:  Papers (1)
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    A typical switched mode power application (SMPA), such as a power supply, motor driver, or regulator, may have multiple converters switching at different frequencies and may produce an array of broad-banded EMI emissions. This paper presents a method for identifying SNTA components that are the causes of these emissions by correlating the spectral bands of an emission with real-time events occurri... View full abstract»

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  • Predicting low frequency behavior of arbitrary reverberation chamber configurations

    Publication Year: 2001, Page(s):757 - 761 vol.2
    Cited by:  Papers (1)
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    This paper demonstrates that a simple signal ratio can transform low frequency monopole antenna data between different reverberation chamber configurations. Applicable chamber differences include DUT and antenna position, size and shape of chamber. The signal ratio deduced empirically or analytically, is shown to be accurate to about 5 MHz. Method efficacy is demonstrated using measurements for va... View full abstract»

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  • Simultaneous effect of crosstalk coupling and external EM wave on the functioning of logical components

    Publication Year: 2001, Page(s):943 - 947 vol.2
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    The paper deals with effects involved by electromagnetic interference (EMI) occurring on digital electronic components. The aim of paper is to show mechanisms of addition of disturbances due to the cross talk coupling and electromagnetic coupling of high frequency sources working in the vicinity of these circuits. To point out these phenomena, some experiments are carried out on a test bench and c... View full abstract»

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  • Controlled power/ground noise on multi-layer digital printed circuit board using adaptive CMOS output driving scheme

    Publication Year: 2001, Page(s):921 - 926 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (776 KB) | HTML iconHTML

    Even though the CMOS output drivers are the major source of the simultaneous switching noise in the highspeed digital printed circuit board, the output driving current could not be controlled by the printed circuit board designer. Hence, we introduce a new CMOS adaptive output-driving scheme, providing the customized controllability of the power/ground noise and the signal rise time to the printed... View full abstract»

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  • Analysis of radiation from nonuniform transmission lines

    Publication Year: 2001, Page(s):1253 - 1258 vol.2
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    Based on the reciprocity theorem, a simple method for the analysis of the radiated electromagnetic fields from a arbitrary nonuniform lossless transmission line with a linear termination is presented. The radiation problem is solved using the known solution of the coupling problem. The method of the solution for the coupling problem in nonuniform transmission lines is based on the steplines approx... View full abstract»

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  • Optimized decoupling concepts for digital VLSI circuits

    Publication Year: 2001, Page(s):904 - 909 vol.2
    Cited by:  Papers (4)
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    A very common approach to reduce conducted and radiated emission caused by VLSI-circuits is using blocking capacitors at the noise-sources together with a sandwich consisting of a power- and a ground-plane. This paper shows the disadvantages of this approach and how to improve it by feeding the supply current through short pieces of microstrip or coplanar lines. In addition coils embedded in the P... View full abstract»

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  • Microwave coupling into a generic object. Properties of measured angular receiving pattern and its significance for testing

    Publication Year: 2001, Page(s):1227 - 1232 vol.2
    Cited by:  Papers (8)
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    Results from extensive microwave coupling measurements on a generic missile are presented. Angular resolved plane wave coupling and coupling in the statistically isotropic environment of a reverberation chamber is studied. The former yields the angular and frequency resolution necessary to include the most susceptible directions and frequencies in testing. Typical differences of 10 - 15 dB between... View full abstract»

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  • A modular neural network approach for locating cloud-to-ground lightning strokes

    Publication Year: 2001, Page(s):1042 - 1045 vol.2
    Cited by:  Papers (1)
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    A modular neuro-based approach is proposed for locating cloud-to-ground lightning strokes. The locating process is done in two stages. In the first stage, a multi-layer perceptron feed forward network with one hidden layer is used to estimate the location range of the return stroke channel (RSC). The estimated value of the RSC location range at the output of the first stage determines the appropri... View full abstract»

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  • Wireless EMC in the medical industry: review of research and the impact on EMI risk

    Publication Year: 2001, Page(s):1292 - 1297 vol.2
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB) | HTML iconHTML

    This paper reviews research performed at the University of Oklahoma Center for the Study of Wireless EMC, providing a summary of the results and discussion concerning the impact of the research on industry. In addition to a review of the research, we also discuss the management of risk of EMI in conjunction with these and other electronic devices, based on the results of our research View full abstract»

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  • A study on suppression of cabinet resonance by means of the hybrid magnetic materials

    Publication Year: 2001, Page(s):713 - 718 vol.2
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    This paper experimentally shows that it is possible for the newly developed hybrid magnetic material (blending the flake powder of the magnetic materials inside the polymer) to suppress the cavity resonance by putting the hybrid magnetic material sheet on the wall inside the cavity. The paper proposes the methodology for obtaining the cavity resonance suppression from the relationship between Q an... View full abstract»

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  • The maximum value distribution in a reverberation chamber

    Publication Year: 2001, Page(s):751 - 756 vol.2
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (840 KB) | HTML iconHTML

    The maximum over mean distribution of received power in the FOI reverberation chamber is analyzed. The experimental results are compared with the theoretical distribution for a chi squared distributed power. For the theoretical distribution the confidence intervals are given as functions of the number of independent measurements for the maximum over mean values. The minimum number of required samp... View full abstract»

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  • Transient analysis of printed circuit board problem using two different solvers

    Publication Year: 2001, Page(s):1327 - 1332 vol.2
    Cited by:  Papers (1)
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    The state-of-the-art in time domain electromagnetic solvers has progressed significantly in the last few years. However, today only few results for truly complex problems obtained with such solvers have been reported in the literature. For this reason, a carefully documented time domain problem is solved in this paper. The results the authors give have been obtained with two independent computer c... View full abstract»

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  • 20-H rule modeling and measurements

    Publication Year: 2001, Page(s):939 - 942 vol.2
    Cited by:  Papers (2)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB) | HTML iconHTML

    The 20-H rule is a printed circuit board layout guideline. On boards with power and ground planes, the fringing field at the edges of the board is contained by backing the edge of the power plane away from the edge of the board by a distance equal to 20 times the separation distance between the planes. In this study, test boards were built and measured with and without implementing the 20-H rule. ... View full abstract»

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