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
Os invólucros de equipamentos eletrônicos são um item importante para suprimir as emissões indesejadas dos circuitos de processamento digital. No entanto, o efeito de blindagem em altas frequências é diminuído pelas fendas e aberturas dos invólucros. O método para avaliar o efeito de blindagem de gabinetes acima de 1 GHz foi investigado neste artigo. Uma antena disco-cone operada por um conversor O/E foi desenvolvida e a propriedade de radiação foi calculada pelo método do momento. Os resultados indicaram que o desvio entre o cálculo e o valor de medição ficou dentro de 3 dB no caso da antena operar na faixa de frequência de 1 GHz a 10 GHz. A antena foi colocada no modelo de invólucro construído com telas de arame e os efeitos de blindagem foram calculados e medidos de 1 GHz a 3 GHz. Os resultados mostraram que a tendência do valor calculado está de acordo com a do valor medido. Usando a antena, o efeito de blindagem dos gabinetes de PC foi investigado de 1 GHz a 8 GHz. Os resultados indicaram que o efeito de blindagem diminui proporcionalmente com o aumento da frequência, e o projeto cuidadoso foi importante para manter o efeito de blindagem nesta faixa de frequência.
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Fujio AMEMIYA, Nobuo KUWABARA, "Method of Evaluating Shielding Effect of Enclosure Using Disc-Cone Antenna Operated by O/E Converter from 1 GHz to 8 GHz" in IEICE TRANSACTIONS on Communications,
vol. E93-B, no. 7, pp. 1707-1714, July 2010, doi: 10.1587/transcom.E93.B.1707.
Abstract: Enclosures of electronic equipment are an important item to suppress the unwanted emissions from digital processing circuits. However, the shielding effect at high frequencies is decreased by slits and apertures of the enclosures. The method for evaluating shielding effect of enclosures above 1 GHz was investigated in this paper. A disc-cone antenna operated by an O/E converter was developed and the radiation property was calculated by the method of moment. The results indicated that the deviation between the calculation and the measurement value was within 3 dB in the case of that the antenna is operated in the frequency range from 1 GHz to 10 GHz. The antenna was placed in the enclosure model constructed with wire meshes and the shielding effects were calculated and measured from 1 GHz to 3 GHz. The results showed that the tendency of the calculated value closely agreed with that of the measured value. Using the antenna, the shielding effect of the PC cases were investigated from 1 GHz to 8 GHz. The results indicated that the shielding effect is decreased in proportion with the increase of frequency, and the careful design was important to maintain the shielding effect in this frequency range.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E93.B.1707/_p
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@ARTICLE{e93-b_7_1707,
author={Fujio AMEMIYA, Nobuo KUWABARA, },
journal={IEICE TRANSACTIONS on Communications},
title={Method of Evaluating Shielding Effect of Enclosure Using Disc-Cone Antenna Operated by O/E Converter from 1 GHz to 8 GHz},
year={2010},
volume={E93-B},
number={7},
pages={1707-1714},
abstract={Enclosures of electronic equipment are an important item to suppress the unwanted emissions from digital processing circuits. However, the shielding effect at high frequencies is decreased by slits and apertures of the enclosures. The method for evaluating shielding effect of enclosures above 1 GHz was investigated in this paper. A disc-cone antenna operated by an O/E converter was developed and the radiation property was calculated by the method of moment. The results indicated that the deviation between the calculation and the measurement value was within 3 dB in the case of that the antenna is operated in the frequency range from 1 GHz to 10 GHz. The antenna was placed in the enclosure model constructed with wire meshes and the shielding effects were calculated and measured from 1 GHz to 3 GHz. The results showed that the tendency of the calculated value closely agreed with that of the measured value. Using the antenna, the shielding effect of the PC cases were investigated from 1 GHz to 8 GHz. The results indicated that the shielding effect is decreased in proportion with the increase of frequency, and the careful design was important to maintain the shielding effect in this frequency range.},
keywords={},
doi={10.1587/transcom.E93.B.1707},
ISSN={1745-1345},
month={July},}
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TY - JOUR
TI - Method of Evaluating Shielding Effect of Enclosure Using Disc-Cone Antenna Operated by O/E Converter from 1 GHz to 8 GHz
T2 - IEICE TRANSACTIONS on Communications
SP - 1707
EP - 1714
AU - Fujio AMEMIYA
AU - Nobuo KUWABARA
PY - 2010
DO - 10.1587/transcom.E93.B.1707
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E93-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2010
AB - Enclosures of electronic equipment are an important item to suppress the unwanted emissions from digital processing circuits. However, the shielding effect at high frequencies is decreased by slits and apertures of the enclosures. The method for evaluating shielding effect of enclosures above 1 GHz was investigated in this paper. A disc-cone antenna operated by an O/E converter was developed and the radiation property was calculated by the method of moment. The results indicated that the deviation between the calculation and the measurement value was within 3 dB in the case of that the antenna is operated in the frequency range from 1 GHz to 10 GHz. The antenna was placed in the enclosure model constructed with wire meshes and the shielding effects were calculated and measured from 1 GHz to 3 GHz. The results showed that the tendency of the calculated value closely agreed with that of the measured value. Using the antenna, the shielding effect of the PC cases were investigated from 1 GHz to 8 GHz. The results indicated that the shielding effect is decreased in proportion with the increase of frequency, and the careful design was important to maintain the shielding effect in this frequency range.
ER -