IEEE Transactions on Electromagnetic Compatibility

Issue 3 • Aug. 1978

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Displaying Results 1 - 24 of 24
  • Table of contents

    Publication Year: 1978, Page(s): c1
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  • IEEE Electromagnetic Compatibility Society

    Publication Year: 1978, Page(s): c2
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  • CISPR Quasi-Peak Measuring Channels with Extended Dynamic Range

    Publication Year: 1978, Page(s):361 - 367
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    The paper deals with instruments for radio-noise measurements according to the CISPR recommendations; however, the ideas described can be applied also in non-CISPR-type meters. A limited instantaneous dynamic measurement range is a common drawback of the classic CISPR (and non-CISPR) meters currently used. One of the most important factors limiting this range is a nonlinearity of the measuring cha... View full abstract»

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  • Expanding the Bandwidth of TEM Cells for EMC Measurements

    Publication Year: 1978, Page(s):368 - 375
    Cited by:  Papers (42)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3562 KB)

    This paper discusses the development of a modified (absorber-loaded) transverse electromagnetic TEM cell with expanded bandwidth for use in accurately characterizing electromagnetic interference (EMI) fields within a shielded environment. The cell is analyzed experimentally, both before and after the modification, to determine its radio-frequency (RF) characteristics, both as an RF transmission li... View full abstract»

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  • Coaxial Cables as Sources of Intermodulation Interference at Microwave Frequencies

    Publication Year: 1978, Page(s):376 - 384
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1556 KB)

    Intermodulation interference arising from nonlinearities in braided coaxial cables at microwave frequencies is discussed. Detailed investigations have been carried out using a large number of commercially available and specially constructed cables to isolate and assess the relative contributions of different parameters of coaxial cables responsible for the generation of intermodulation products (I... View full abstract»

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  • Insertion Loss of Mismatched EMI Suppressors

    Publication Year: 1978, Page(s):384 - 389
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (743 KB)

    The insertion loss (IL) of EMI suppressors operating in systems with mismatched load and source impedances is studied. The design of an EMI suppressor is difficult because the actual impedances connected to it are often unknown. It has been recognized for a long time and by many authors [1]-[7] that the IL defined in a 50-ohm system (MIL-STD-220) is rather meaningless for general application. It m... View full abstract»

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  • Scattering of Electromagnetic Waves by Arrays of Conducting Cylinders Interspaced by Inhomogeneous Dielectrics

    Publication Year: 1978, Page(s):390 - 394
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (804 KB)

    The scattering and transmission properties of arrays of rectangular conducting cylinders interspaced by homogeneous and inhomogeneous dielectric materials are studied by a fimite-difference coupling method for an E-polarized incident wave. Computed numerical results are presented which reveal interesting physical phenomena. View full abstract»

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  • Prediction of Crosstalk in Ribbon Cables: Comparison of Model Predictions and Experimental Results

    Publication Year: 1978, Page(s):394 - 406
    Cited by:  Papers (18)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2835 KB)

    The prediction of crosstalk in ribbon cables is investigated. Experimental results are obtained for a 20-wire ribbon cable and compared to the predictions of the multiconductor transmission line (MTL) model. Based on the experimental configuration tested, it would appear that accurate predictions of crosstalk can be achieved in these controlled-characteristic cables. The prediction accuracies are ... View full abstract»

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  • Electromagnetic Coupling to an Infinite Cable Placed Behind a Slot-Perforated Screen

    Publication Year: 1978, Page(s):406 - 411
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (891 KB)

    We present an analysis of the electromagnetic coupling from an external illuminating field to an infinitely long thin cable placed behind the conducting screen that is perforated by a narrow slot. By using a Fourier transform representation for the unknown electric current on the cable, we obtain an integro-differential equation for the distribution of the electric field in the slot that accounts ... View full abstract»

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  • Attenuation of Electric and Magnetic Fields by Buildings

    Publication Year: 1978, Page(s):411 - 418
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3531 KB)

    Results of an empirical investigation of the shielding properties of seven buildings, ranging from single-family detached residences to multistory office buildings, are presented. Both electricfield and magnetic-field attenuations were measured in the frequency range of approximately 20 kHz to 500 MHz. View full abstract»

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  • Low-Angle Tracking by Carrier-Free Radar

    Publication Year: 1978, Page(s):419 - 425
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1470 KB)

    Multipath transmission is currently the most important limitation for the accuracy of low-elevation-angle radar. The use of properly polarized nonsinusoidal electromagnetic waves permits one to discriminate between the wave that propagated directly from the radar to the target and back, and all the other waves that propagated via the surface of the earth, either on the way to the target or on the ... View full abstract»

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  • Synthetic-Aperture Radar Based on Nonsinusoidal Functions: I-Moving Radar and Stationary Arrays in One or Two Dimensions

    Publication Year: 1978, Page(s):426 - 435
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1658 KB)

    Synthetic-aperture radar in the form known for more than twenty years uses the Doppler shift of a periodic sinusoidal wave caused by the relative motion between a radar and a target. This paper investigates the use of pulses to produce a synthetic-aperture radar. It is assumed that the pulses are either too short to show a useful Doppler shift or that one wants to use the Doppler shift for somethi... View full abstract»

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  • Electromagnetic Pulse Coupling Through an Aperture into a Two-Parallel-Plate Region

    Publication Year: 1978, Page(s):436 - 442
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (986 KB)

    Analysis of electromagnetic-pulse (EMP) penetration via apertures into cavities is an important study in designing hardened systems. In this paper, an integral equation procedure is developed for determining the frequency and consequently the time behavior of the field inside a two-parallel-plate region excited through an aperture by an EMP. Some discussion of the numerical results is also include... View full abstract»

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  • Leaky Modes in Parallel-Plate EMP Simulators

    Publication Year: 1978, Page(s):443 - 451
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1148 KB)

    The finite-width parallel-plate waveguide is a useful tool as an EMP simulator, and its characteristics have recently been investigated by a number of workers. In this paper, we report the results of a study of the modal fields in such a waveguide. Once these modal fields and their corresponding wavenumbers are known, the problem of source excitation in such a waveguide can be solved, at least app... View full abstract»

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  • An Application of Walsh Functions in Radio Astronomy Instrumentation

    Publication Year: 1978, Page(s):451 - 453
    Cited by:  Papers (6)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (591 KB)

    Walsh functions can be used to advantage to perform phase switching in antenna arrays used for radio mapping of the sky by Fourier synthesis. This paper describes the reason for phase switching, the advantage of using Walsh functions, and the implementation of these ideas in the Very Large Array (VLA) program of the National Radio Astronomy Observatory.1 View full abstract»

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  • On a Real-Time Walsh-Hadamard/Cosine Transform Image Processor

    Publication Year: 1978, Page(s):453 - 457
    Cited by:  Papers (32)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (861 KB)

    A real-time image processor which is capable of video compression using either the sequency-ordered Walsh-Hadamard transform (WHT)W, or the discrete cosine transform (DCT), is considered. The processing is done on an intraframe basis in (8 X 8) data blocks. The (WHT)W coefficients are computed directly, and then used to obtain the DCT coefficients. This is achieved via an (8 X 8) transformation ma... View full abstract»

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  • Damped EMI Filters for Switching Regulators

    Publication Year: 1978, Page(s):457 - 463
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1102 KB)

    The phenomenon of open-loop instability between the powerline EMI filter and the switching-regulator power supply is investigated [1]. As a first step to the filter-design problem, simple modifications are made to the filter chosen from EMI considerations alone to assure stability as well. View full abstract»

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  • A Note on "Variation in the Surface-Charge Density of an Excitable Nerve Membrane Exposed to Optical Radiation"

    Publication Year: 1978, Page(s):464 - 466
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (495 KB)

    An error depicting the dimensional inconsistency in the expression for surface density of an excitable nerve membrane obtained by Agrawal et al. in the above paper, is indicated. This error arises mainly due to the incorrect definition and evaluation of surface-charge density adopted in the paper. Further, the analysis presented completely ignores the beam-wave parameters of the optical radiation.... View full abstract»

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  • Contributors

    Publication Year: 1978, Page(s):467 - 469
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  • EMC Symposium Rotterdam 1979 - Call for Papers

    Publication Year: 1978, Page(s): 470
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  • An invitation to Membership

    Publication Year: 1978
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  • IEEE Conference Publications of Interest in Stock [advertisement]

    Publication Year: 1978, Page(s): 470b
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  • EMC Society Policy

    Publication Year: 1978, Page(s): 470c
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  • Institutional listings

    Publication Year: 1978, Page(s): 470d
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Aims & Scope

IEEE Transactions on Electromagnetic Compatibility publishes original and significant contributions related to all disciplines of electromagnetic compatibility (EMC) and relevant methods to predict, assess and prevent electromagnetic interference (EMI) and increase device/product immunity.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Prof. Ing. Antonio Orlandi 
University of L'Aquila
Email: antonio.orlandi@univaq.it