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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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  • 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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  • Predicting vehicle-level radiated EMI emissions using module-level conducted EMIs and harness radiation efficiencies

    Publication Year: 2001, Page(s):1146 - 1151 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB) | HTML iconHTML

    This paper proposes simple yet accurate empirical strategies, to characterize the emission coefficients of wire harnesses in a complicated system. Then, combine these with measured conducted electromagnetic interference (EMI) currents, vehicle-level radiated noise can be predicted. This approach conceptually separates complicated radiated emission issues to two parts, one associated with conducted... 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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  • Comparison of numerical modeling methods FDTD and TLM

    Publication Year: 2001, Page(s):1316 - 1321 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (536 KB) | HTML iconHTML

    Numerical modeling is a powerful tool for EMC/EMI design; however, the methods must be compared in order to validate results. The transmission line method (TLM) and the finite difference time domain (FDTD) method were used to model a TC-9 subcommittee challenge problem. The structure under investigation is a metallic box with a slot aperture. The problem was studied to ascertain emissions and shie... View full abstract»

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  • EMC modeling and simulation on chiplevel

    Publication Year: 2001, Page(s):1191 - 1196 vol.2
    Cited by:  Papers (15)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (744 KB) | HTML iconHTML

    Due to increasing demands for reduced electromagnetic emission on chip-level in combination with more complex circuits and faster design cycles, it is mandatory to spend effort on EMC models and simulation for chip design. In this paper, a three-level approach, based on: (1) testchip design and measurement; (2) RLC-extraction of supply system plus transistor netlist simulation; and (3) behavioural... View full abstract»

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  • An inexpensive and simple method for characterizing passive components

    Publication Year: 2001, Page(s):1141 - 1145 vol.2
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1000 KB) | HTML iconHTML

    Parasitic effects of passive components such as capacitors, resistors, inductors, and ferrites are determined through extraction of their S-parameters using a simple 50 Ω apparatus and a network analyzer, and data from the measurement is processed using a math software package. Error-correction is performed utilizing the ABCD conversion of the S-parameters. It is shown that the error due to ... View full abstract»

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  • Differential signalling in PCBs: modeling and validation of dielectric losses and effects of discontinuities

    Publication Year: 2001, Page(s):933 - 938 vol.2
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB) | HTML iconHTML

    This paper focuses on differential signal transmission above ground planes with gaps, taking into account the dielectric and conductive losses of the substrate. An equivalent lumped-circuit is proposed and its suitability is investigated by comparing the obtained numerical results with the measured data. Furthermore the differential to common mode conversion of the waves, while crossing the gap, i... View full abstract»

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  • Ferrite-impregnated wide band microwave absorber

    Publication Year: 2001, Page(s):1127 - 1130 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB) | HTML iconHTML

    This paper describes the absorption of microwave in a composite containing a random distribution of iron-oxide (ferrite) particles embedded in fiberglass. Solutions of currently available theories for permittivity of dielectric mixture are used to show the concentration dependence of the complex (real and imaginary parts) permittivity. Reflection coefficient curves for a metal backed ferrite-impre... View full abstract»

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  • Risk analysis and EMI risk abatement strategies for hospitals: scientific and legal approaches

    Publication Year: 2001, Page(s):1304 - 1307 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB) | HTML iconHTML

    Healthcare professionals are concerned about the risk of an EMI-related injury or property damage caused from an adverse interaction between one or more electromagnetic energy sources (EMES) and the medical devices (MD) located within modern hospitals. These professionals need to understand EMI risks so that responses can be formulated which are appropriate to the physiological risks presented and... View full abstract»

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  • Unique applications of reverberation techniques

    Publication Year: 2001, Page(s):732 - 733 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (120 KB) | HTML iconHTML

    Box level radiated susceptibility was required on a large, highly interconnected avionics system. Traditional laboratory testing compliance needed to be demonstrated, however, the complexity of the system and necessary support equipment prohibited normal approaches in a laboratory environment. This paper discusses the testing performed using reverberation techniques inside the aircraft and also ou... View full abstract»

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  • The mathematical representation for the variation of levels with small occurrence rate in radio noise

    Publication Year: 2001, Page(s):870 - 875 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB) | HTML iconHTML

    The authors' studies on radio noise in metropolitan areas has been continued, focusing on the statistical features. Recently radio noise measurement in the VHF band was carried out at a point beside a road with busy traffic, using newly developed APD measuring equipment and a spectrum analyzer. The obtained results show the time dependent variation of the statistical properties of the noise. This ... View full abstract»

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  • DC power bus noise isolation with power islands

    Publication Year: 2001, Page(s):899 - 903 vol.2
    Cited by:  Papers (16)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB) | HTML iconHTML

    Segmented power planes are often used for DC power bus noise isolation in multi-layered printed circuit board (PCB) designs. To achieve a desirable noise isolation, different power plane segmentations can be used. A suitable modeling approach, as well as measurements, were employed to study the power bus isolation with several power plane segmentation configurations. The studied geometries include... View full abstract»

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  • Product Safety and the use of EMC techniques to evaluate the 30 Amp Ground continuity test

    Publication Year: 2001, Page(s):789 - 793 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (888 KB) | HTML iconHTML

    In order for many AC mains connected devices to meet, or be certified to, their relevant safety standard, a ground continuity test must be performed as one of the safety tests. Performance of such a test is to ensure that ground contact points, wire, and wire connectors have been assembled properly. However, the authors of this paper have found that the ground continuity test, as described by toda... View full abstract»

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  • Tropical lightning stroke data collected and analyzed by computer based lightning detecting station

    Publication Year: 2001, Page(s):845 - 848 vol.2
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    Lightning is a main cause of electric utility outages and equipment damage throughout the world. The authors propose a flexible and reliable lightning detection and location system in order to take protective measures against such lightning damage. The system is based on standard PC hardware and software. They discuss several tropical lightning stroke characteristics found with the help of the des... View full abstract»

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  • From NSA to site-reference method for EMC test site validation

    Publication Year: 2001, Page(s):948 - 953 vol.2
    Cited by:  Papers (5)
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    Electromagnetic compatibility compliance testing of electronic apparatus includes the measurement of radiated-emissions in the frequency range of 30 MHz to 1 GHz. To achieve equivalent test results from different testing laboratories, test sites must be of validated, standard performance. This paper suggests a substantial improvement to the standard site validation procedure: A new "site-reference... View full abstract»

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  • Modelling RF interference effects in integrated circuits

    Publication Year: 2001, Page(s):1203 - 1208 vol.2
    Cited by:  Papers (5)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB) | HTML iconHTML

    The disturbance effects in complex electronic systems, subjected to a high power microwave (HPM), continuous wave (CW) or pulse irradiation, show a conversion of the injected high frequency (HF) out-of-band signal to a low frequency (LF) inband signal. In this paper, a behavioural model is presented that combines HF and LF subcircuits to predict the effect of radio frequency interference (RFI) on ... View full abstract»

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  • Radiation from printed circuit board edge structures

    Publication Year: 2001, Page(s):881 - 883 vol.2
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (640 KB) | HTML iconHTML

    One of the primary modes of radiation from printed circuit boards are due to emissions along the edges of printed circuit boards (PCBs). The problem is exasperated by PCB resonance effects. A variety of edge treatment techniques are used to minimize these two effects including adding a string of vias around the periphery of the PCB to short out ground planes (fencing), and pulling back power plane... View full abstract»

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  • A full-wave characterization of PCB having various ground plane shapes

    Publication Year: 2001, Page(s):1213 - 1216 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB) | HTML iconHTML

    An integral equation technique solved by the method of moment (MoM) is proposed to characterize planar interconnection lines printed on a dielectric substrate backed by a finite size arbitrarily ground plane shape. The ground plane topology effect on the current return is firstly highlighted thanks to the calculated current distribution. The effect of the finite size of the ground plane is then an... View full abstract»

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  • Power current model of LSI and parameter identification for EMI simulation of digital PCBs

    Publication Year: 2001, Page(s):1185 - 1190 vol.2
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB) | HTML iconHTML

    A power current model of LSIs for EMI simulation of digital printed circuit boards, and a parameter identification method based on the model are presented. The model consists of equivalent internal impedance and an equivalent internal current source. The equivalent internal impedance is obtained by measuring the impedance between the power and ground terminal of an LSI by means of an impedance ana... View full abstract»

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  • Model-based permittivity measurement of construction materials by the standing wave method

    Publication Year: 2001, Page(s):1135 - 1140 vol.2
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB) | HTML iconHTML

    A simplified model of a permittivity measurement system based on the standing wave method in free space has been developed to estimate the complex permittivity of construction materials accurately. It is assumed that the standing wave distribution is determined by three spherical wave components in this model that are the incident-, reflected- and scattered-waves at the edge of the material under ... View full abstract»

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  • Near field coupling between two flangeless rectangular waveguides

    Publication Year: 2001, Page(s):728 - 731 vol.2
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    The problem of coupling between two semi-infinite and flangeless rectangular waveguides, placed at arbitrarily angles with respect to each other, is investigated numerically using the moment method. The integral equation for the induced current is expressed in terms of incident, reflected, transmitted and evanescent currents on the waveguide walls. This is solved numerically by Galerkin's method w... 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)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (376 KB) | HTML iconHTML

    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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