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
Les boîtiers des équipements électroniques sont un élément important pour supprimer les émissions indésirables des circuits de traitement numérique. Cependant, l'effet de blindage aux hautes fréquences est diminué par les fentes et les ouvertures des boîtiers. La méthode d'évaluation de l'effet de blindage des boîtiers au-dessus de 1 GHz a été étudiée dans cet article. Une antenne disque-cône actionnée par un convertisseur O/E a été développée et la propriété de rayonnement a été calculée par la méthode du moment. Les résultats ont indiqué que l'écart entre la valeur de calcul et la valeur de mesure était inférieur à 3 dB dans le cas où l'antenne fonctionne dans la gamme de fréquences de 1 GHz à 10 GHz. L'antenne a été placée dans le modèle d'enceinte construit avec des treillis métalliques et les effets de blindage ont été calculés et mesurés de 1 GHz à 3 GHz. Les résultats ont montré que la tendance de la valeur calculée concordait étroitement avec celle de la valeur mesurée. À l'aide de l'antenne, l'effet de blindage des boîtiers PC a été étudié de 1 GHz à 8 GHz. Les résultats ont indiqué que l’effet de blindage diminue proportionnellement à l’augmentation de la fréquence, et qu’une conception soignée était importante pour maintenir l’effet de blindage dans cette gamme de fréquences.
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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},}
Copier
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 -