The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Este artigo apresenta as características básicas de uma antena dipolo EMI do tipo ressonante forçada para frequências abaixo de 80 MHz na qual dois elementos de reatância são utilizados para o casamento de impedância no ponto de alimentação. A impedância de entrada do dipolo curto menor que meio comprimento de onda é controlada pela posição de carga adequadamente determinada e pelo valor da reatância de carga. A equação integral para distribuição de corrente desconhecida é resolvida pelo método dos momentos de Galerkin com funções senoidais por partes. Os resultados numéricos mostram que a antena dipolo EMI de pequeno porte com fatores de antena mais baixos para frequências abaixo de 80 MHz pode ser realizada pelo carregamento de reatância. Caso a antena dipolo EMI de pequeno porte acionada centralmente proposta com comprimento de 0.3λ seja carregada c=0.133λ do centro, a impedância de entrada é igualada na linha de alimentação com 50 Ω e, portanto, a antena tem fatores mais baixos na faixa de frequência de 30 a 80 MHz. Também são apresentadas as características de atenuação de local normalizadas para a antena dipolo EMI do tipo ressonante forçada.
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Ki-Chai KIM, "EMI Dipole Antennas with Forced Resonance by Reactance Loading for Frequencies below 80 MHz" in IEICE TRANSACTIONS on Communications,
vol. E85-B, no. 11, pp. 2489-2494, November 2002, doi: .
Abstract: This paper presents the basic characteristics of a forced resonant type EMI dipole antenna for frequencies below 80 MHz in which two reactance elements are used for the impedance matching at the feed point. The input impedance of the short dipole less than half-wavelength is controlled by the properly determined loading position and the value of loading reactance. The integral equation for unknown current distribution is solved by Galerkin's method of moments with piecewise sinusoidal functions. The numerical results show that the small-sized EMI dipole antenna with lower antenna factors for frequencies below 80 MHz can be realized by the reactance loading. In case the proposed center driven small-sized EMI dipole antenna with 0.3λ length is loaded c=0.133λ from the center, the input impedance is matched at feed line with 50 Ω, and hence the antenna has lower factors in the frequency range of 30 to 80 MHz. Also the normalized site attenuation characteristics are presented for the forced resonant type EMI dipole antenna.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e85-b_11_2489/_p
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@ARTICLE{e85-b_11_2489,
author={Ki-Chai KIM, },
journal={IEICE TRANSACTIONS on Communications},
title={EMI Dipole Antennas with Forced Resonance by Reactance Loading for Frequencies below 80 MHz},
year={2002},
volume={E85-B},
number={11},
pages={2489-2494},
abstract={This paper presents the basic characteristics of a forced resonant type EMI dipole antenna for frequencies below 80 MHz in which two reactance elements are used for the impedance matching at the feed point. The input impedance of the short dipole less than half-wavelength is controlled by the properly determined loading position and the value of loading reactance. The integral equation for unknown current distribution is solved by Galerkin's method of moments with piecewise sinusoidal functions. The numerical results show that the small-sized EMI dipole antenna with lower antenna factors for frequencies below 80 MHz can be realized by the reactance loading. In case the proposed center driven small-sized EMI dipole antenna with 0.3λ length is loaded c=0.133λ from the center, the input impedance is matched at feed line with 50 Ω, and hence the antenna has lower factors in the frequency range of 30 to 80 MHz. Also the normalized site attenuation characteristics are presented for the forced resonant type EMI dipole antenna.},
keywords={},
doi={},
ISSN={},
month={November},}
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TY - JOUR
TI - EMI Dipole Antennas with Forced Resonance by Reactance Loading for Frequencies below 80 MHz
T2 - IEICE TRANSACTIONS on Communications
SP - 2489
EP - 2494
AU - Ki-Chai KIM
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E85-B
IS - 11
JA - IEICE TRANSACTIONS on Communications
Y1 - November 2002
AB - This paper presents the basic characteristics of a forced resonant type EMI dipole antenna for frequencies below 80 MHz in which two reactance elements are used for the impedance matching at the feed point. The input impedance of the short dipole less than half-wavelength is controlled by the properly determined loading position and the value of loading reactance. The integral equation for unknown current distribution is solved by Galerkin's method of moments with piecewise sinusoidal functions. The numerical results show that the small-sized EMI dipole antenna with lower antenna factors for frequencies below 80 MHz can be realized by the reactance loading. In case the proposed center driven small-sized EMI dipole antenna with 0.3λ length is loaded c=0.133λ from the center, the input impedance is matched at feed line with 50 Ω, and hence the antenna has lower factors in the frequency range of 30 to 80 MHz. Also the normalized site attenuation characteristics are presented for the forced resonant type EMI dipole antenna.
ER -