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Electromagnetic Compatibility, IEEE Transactions on

Issue 3 • Date Aug. 1997

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Displaying Results 1 - 13 of 13
  • Comments on "Transient radiation of traveling waves by wire antennas"

    Publication Year: 1997
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (27 KB)  

    For original paper see Podosenov et al. (IEEE Trans. Electromag. Compat., vol.37, p.367-83, 1996 August). After making comments on works previously published on transient radiation from nonsinusoidal current waves traveling along thin curvilinear wires, Podosenov et al. attributed the discrepancy between various results, for the simplest case with a linear antenna of finite length, to different so... View full abstract»

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  • On the Laguerre representation of noisy EMP signals

    Publication Year: 1997 , Page(s): 212 - 218
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (204 KB)  

    The notion of representing discrete-time electromagnetic pulse (EMP) signals using orthonormal Laguerre sequences for the noiseless case was introduced by Mandyam, Ahmed and Armstrong (see ibid., vol.37, no.11, p.592-95, 1995). The motivation for doing so is that EMP signals and Laguerre sequences are both characterized by decaying exponentials. Very efficient representation of EMP signals is poss... View full abstract»

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  • Exact solution for the characteristic impedance of rectangular coaxial cone transmission line

    Publication Year: 1997 , Page(s): 233 - 235
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (104 KB)  

    The exact and approximate expressions for the characteristic impedance of a rectangular coaxial cone transmission line are obtained using the conformal mapping method. The formula is exact and simple, so, it enables the characteristic impedance of a broadband transverse electromagnetic (TEM) cell to be calculated accurately and easily. This broadband TEM wave cell, has increasing applications in b... View full abstract»

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  • Improvement of the FDTD method for the study of wave penetration inside a valley

    Publication Year: 1997 , Page(s): 251 - 255
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (156 KB)  

    The finite difference time domain (FDTD) algorithm generally needs a three-dimensional (3-D), rectilinear computational volume. For some applications, one part of this volume is not useful, then taking a rectilinear total volume can require unnecessary memory and computation time. This paper introduces a method to reduce the computer resources for certain applications. The example of wave penetrat... View full abstract»

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  • Shielding effect of hollow chiral sphere

    Publication Year: 1997 , Page(s): 219 - 224
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (236 KB)  

    The low-frequency shielding effect of a spherical layer is studied. The layer is made of a chiral material and it is electromagnetically characterized with three material parameters: permittivity, permeability, and chirality. Due to chirality, there is magnetoelectric coupling. The electric and magnetic shielding effects are derived and are shown to be functions of the three material parameters an... View full abstract»

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  • Shielding effectiveness of single and double plates with slits

    Publication Year: 1997 , Page(s): 260 - 264
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (192 KB)  

    Transverse electric (TE) wave transmission through slits on single and double metal plates of finite thickness is studied by using Galerkin's method. It is observed that by either using a thick plate (for slit narrower than half a wavelength) or using double plates with slits laterally shifted (for slits wider than half a wavelength), the amount of power transmitted through the slits can be signif... View full abstract»

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  • Including dielectric loss in printed circuit models for improved EMI/EMC predictions

    Publication Year: 1997 , Page(s): 236 - 246
    Cited by:  Papers (11)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (348 KB)  

    The properties of printed circuit boards (PCBs) pertinent to electromagnetic interference/compatibility (EMI/EMC) are commonly studied using circuit models. This paper describes a method for improving these models by including the effects of frequency-dependent dielectric loss. The approach can be applied to discrete capacitors, microstrips, striplines, power buses, and power planes. The loss term... View full abstract»

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  • Numerical and experimental corroboration of an FDTD thin-slot model for slots near corners of shielding enclosures

    Publication Year: 1997 , Page(s): 225 - 232
    Cited by:  Papers (22)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (164 KB)  

    Simple design maxims to restrict slot dimensions in enclosure designs below a half-wave length are not always adequate for minimizing electromagnetic interference (EMI). Complex interactions between cavity modes, sources, and slots can result in appreciable radiation through nonresonant length slots. The finite-difference time domain (FDTD) method can be employed to pursue these issues with adequa... View full abstract»

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  • A method for designing high-power offset Cassegrain antennas

    Publication Year: 1997 , Page(s): 255 - 260
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (220 KB)  

    Starting from the geometrical parameters of the feed and the desired gain of the Cassegrain antenna, a method to determine the design starting parameters for a high-power offset Cassegrain antennas is discussed. Then, by numerically solving the equations governing the antenna geometry, a set of design curves are obtained, with which the structure of the antenna can be determined by trading off the... View full abstract»

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  • FDTD analysis of linear antennas driven from a discrete impulse excitation

    Publication Year: 1997 , Page(s): 247 - 250
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (132 KB)  

    The finite-difference time-domain (FDTD) technique has been employed to analyze a large number of electromagnetic scattering problems. However, only a limited number of problems involving antenna radiation has been investigated. Furthermore, the excitation source of the radiating systems has been mostly a Gaussian type pulse. The concept of a discrete impulse excitation is developed and used to fe... View full abstract»

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  • The false image of a line current within a conducting half-space

    Publication Year: 1997 , Page(s): 266 - 267
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (64 KB)  

    We show that the fields from a current line source, within a conducting-half-space, are only inadequately characterized by a positive real image in the air region. Such an assumption or assertion, as employed in previous electromagnetic compatibility (EMC) studies, is called into question. Buried cables are mentioned in particular View full abstract»

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  • Field coupling to nonuniform and uniform transmission lines

    Publication Year: 1997 , Page(s): 201 - 211
    Cited by:  Papers (17)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (344 KB)  

    We study time-domain and frequency-domain responses of nonuniform and uniform transmission lines excited by incident electromagnetic waves. Externally excited uniform transmission lines permit closed-form solutions in terms of inverse chain matrix, whereas nonuniform lines cannot be analytically solved, in general. We adopt a method of equivalent cascaded network chain as the method of solving the... View full abstract»

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  • Explicit upwind schemes for lossy MTLs with linear terminations

    Publication Year: 1997 , Page(s): 189 - 200
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (376 KB)  

    The time domain multiconductor transmission line (MTL) equations are written as a general first order system of partial differential equations and a characteristic decomposition is used to obtain first order and second order accurate upwind differencing schemes. Linear boundary conditions in the form of generalized Thevenin equivalent sources are incorporated into the scheme. These schemes are com... View full abstract»

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Aims & Scope

IEEE Transactions on Electromagnetic Capability 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
Professor Farhad Rachidi
Swiss Federal Institute of Technology (EPFL)
EMC Laboratory
CH-1015 Lausanne
Switzerland
Phone: +41 (0) 21 693 26 20 (direct)
+41 (0) 21 693 26 61 (secretariat)
Fax: +41 (0) 21 693 46 62
Email: Farhad.Rachidi@epfl.ch
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