Results 251 to 260 of about 1,103,532 (303)
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Visualizing radiation patterns of antennas
IEEE Computer Graphics and Applications, 1990An efficient computer graphics tool for investigating the radiation patterns of antennas as functions of their design parameters is presented. Radiation patterns (or the magnitudes of field distributions) of antennas are treated as three-dimensional surfaces, since the magnitudes of the far-field distributions are functions of polar and azimuthal ...
Swapan Chakrabarti +3 more
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The Radiation Pattern of a Conical Horn
Journal of Electromagnetic Waves and Applications, 2006In this paper, improved analytic formulas for the radiation pattern of a plain conical horn are given in terms of the sum and difference of certain members of a conveniently defined family of functions. These formulas provide an increased level of physical insight into the operation of the antenna.
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Synthesis of a slot radiator with a given radiation pattern
Journal of Communications Technology and Electronics, 2009Synthesis of a slot cylindrical radiator with a given radiation pattern is studied. For a Gaussian pattern, the phenomenon of superdirectivity is analyzed and the parameters of the radiator providing for the optimal spread in the orders of the amplitudes of the currents on slots are estimated.
A. S. Il’inskii, E. V. Chernokozhin
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Angular radiation pattern of Smith-Purcell radiation
Journal of the Optical Society of America B, 1984The power radiation pattern of Smith–Purcell radiation is measured at various latitudes and azimuth angles relative to the electron beam. The experimental data are used to evaluate the various models and the physical mechanisms previously suggested to describe Smith–Purcell radiation.
A. Gover, P. Dvorkis, U. Elisha
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Pattern Discovery in Internet Background Radiation
IEEE Transactions on Big Data, 2019Internet Background Radiation (IBR) is observed in empty network address spaces. No traffic should arrive there, but it does in overwhelming quantities, gathering evidences of attacks, malwares and misconfigurations. The study of IBR helps to detect spreading network problems, common vulnerabilities and attack trends.
Félix Iglesias, Tanja Zseby
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Radiation patterns of arbitrarily oriented radiating elements
1995 International Conference on Electromagnetic Interference and Compatibility (INCEMIC), 2002The radiation patterns of horizontal and vertical dipoles have been reported in the literature. These results are used in the analysis and design of arrays of parallel vertical elements and collinear elements. However no information is available for the arbitrarily oriented elements. The element patterns of such elements are derived from the concept of
P. Manju Latha +5 more
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Adjustment of Radiation Pattern of Street Luminaire
2019 21st International Conference on Transparent Optical Networks (ICTON), 2019This article deals with the analyze of the radiation pattern of the street luminaire Boos Naica and suggests its modifications by turning the LEDs and reflecting surfaces. The goal is to create a more uniform optical power distribution. The street luminaires can provide two functions at the same time, illumination and communication. It is important for
Jan Vitasek +4 more
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1969
Having examined the boundary value problem, we now want to consider a problem which might be called the boundary problem at infinity, because we want to study solutions of the Maxwell equations which have a specified asymptotic behavior. We already discussed this question in § 8 for the case e = μ = 1 and here we assume again these same values of e and
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Having examined the boundary value problem, we now want to consider a problem which might be called the boundary problem at infinity, because we want to study solutions of the Maxwell equations which have a specified asymptotic behavior. We already discussed this question in § 8 for the case e = μ = 1 and here we assume again these same values of e and
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Antenna Radiation Pattern Compressive Sensing
MILCOM 2018 - 2018 IEEE Military Communications Conference (MILCOM), 2018Modern wireless communications is placing ever greater demands on the system's antenna. But high-resolution, wide-band antenna pattern measurement remains a slow, expensive process that can hinder research, development, and production. This paper explores the use of compressive sensing to accelerate the measurement process.
Michael L. Don, Gonzalo R. Arce
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