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
Diverses études sur les débits d'absorption spécifiques (DAS) utilisant des fantômes liquides imitant les tissus du corps humain ont été largement réalisées dans les domaines de recherche sur la compatibilité électromagnétique (CEM). Afin d’établir des DAS précis à des fins de mesure, une maquette fidèle des tissus du corps humain est nécessaire. Par conséquent, la connaissance de la mesure précise d’échantillons de matériaux présentant une permittivité élevée et des pertes élevées est très importante. Dans cette étude, la permittivité complexe de l'eau du robinet, de l'éthanol, du méthanol et de l'isopropanol est mesurée par la méthode de réflexion par guide d'ondes circulaire à coupure ouverte. L'efficacité de la méthode présentée ici pour mesurer un fantôme liquide à haute permittivité et à haute perte est également confirmée en comparant les résultats mesurés avec les résultats obtenus par le TM.010 méthode du résonateur à cavité circulaire. A cette époque, les effets sur l'impédance d'entrée sous des variations de la longueur d'insertion et des conditions de terminaison ont été étudiés. Ensuite, la permittivité complexe de l'eau du robinet, de l'éthanol, du méthanol et de l'isopropanol a été mesurée à des fréquences allant de 0.5 à 3.0 GHz en utilisant la procédure de mesure ci-dessus. En conséquence, nous avons confirmé les caractéristiques de fréquence de la permittivité complexe pour une grande variété de matériaux liquides à pertes élevées.
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Kouji SHIBATA, "Measurement of Complex Permittivity for Liquid Materials Using the Open-Ended Cut-Off Waveguide Reflection Method" in IEICE TRANSACTIONS on Electronics,
vol. E93-C, no. 11, pp. 1621-1629, November 2010, doi: 10.1587/transele.E93.C.1621.
Abstract: Various studies of specific absorption rates (SARs) using liquid phantoms imitating human body tissues have been widely carried out in electromagnetic compatibility (EMC) research fields. In order to establish accurate SARs for measurement, a faithful mockup of human body tissue is needed. Therefore, knowledge of the accurate measurement of sample materials with high permittivity and high loss is very important. In this study, the complex permittivity of tap water, ethanol, methanol and isopropanol is measured by the open-ended cut-off circular waveguide reflection method. The effectiveness of the method presented here of measuring a liquid phantom with high-permittivity and high-loss is also confirmed by comparing the measured results with the results obtained by the TM010 circular cavity resonator method. At this time, the effects on the input impedance under variations of the insertion length and termination conditions were studied. Then the complex permittivity of tap water, ethanol, methanol and isopropanol was measured at frequencies ranging from 0.5 to 3.0 GHz using the measurement procedure above. As a result, we confirmed the frequency characteristics of the complex permittivity for a wide variety of high-loss liquid materials.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E93.C.1621/_p
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@ARTICLE{e93-c_11_1621,
author={Kouji SHIBATA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Measurement of Complex Permittivity for Liquid Materials Using the Open-Ended Cut-Off Waveguide Reflection Method},
year={2010},
volume={E93-C},
number={11},
pages={1621-1629},
abstract={Various studies of specific absorption rates (SARs) using liquid phantoms imitating human body tissues have been widely carried out in electromagnetic compatibility (EMC) research fields. In order to establish accurate SARs for measurement, a faithful mockup of human body tissue is needed. Therefore, knowledge of the accurate measurement of sample materials with high permittivity and high loss is very important. In this study, the complex permittivity of tap water, ethanol, methanol and isopropanol is measured by the open-ended cut-off circular waveguide reflection method. The effectiveness of the method presented here of measuring a liquid phantom with high-permittivity and high-loss is also confirmed by comparing the measured results with the results obtained by the TM010 circular cavity resonator method. At this time, the effects on the input impedance under variations of the insertion length and termination conditions were studied. Then the complex permittivity of tap water, ethanol, methanol and isopropanol was measured at frequencies ranging from 0.5 to 3.0 GHz using the measurement procedure above. As a result, we confirmed the frequency characteristics of the complex permittivity for a wide variety of high-loss liquid materials.},
keywords={},
doi={10.1587/transele.E93.C.1621},
ISSN={1745-1353},
month={November},}
Copier
TY - JOUR
TI - Measurement of Complex Permittivity for Liquid Materials Using the Open-Ended Cut-Off Waveguide Reflection Method
T2 - IEICE TRANSACTIONS on Electronics
SP - 1621
EP - 1629
AU - Kouji SHIBATA
PY - 2010
DO - 10.1587/transele.E93.C.1621
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E93-C
IS - 11
JA - IEICE TRANSACTIONS on Electronics
Y1 - November 2010
AB - Various studies of specific absorption rates (SARs) using liquid phantoms imitating human body tissues have been widely carried out in electromagnetic compatibility (EMC) research fields. In order to establish accurate SARs for measurement, a faithful mockup of human body tissue is needed. Therefore, knowledge of the accurate measurement of sample materials with high permittivity and high loss is very important. In this study, the complex permittivity of tap water, ethanol, methanol and isopropanol is measured by the open-ended cut-off circular waveguide reflection method. The effectiveness of the method presented here of measuring a liquid phantom with high-permittivity and high-loss is also confirmed by comparing the measured results with the results obtained by the TM010 circular cavity resonator method. At this time, the effects on the input impedance under variations of the insertion length and termination conditions were studied. Then the complex permittivity of tap water, ethanol, methanol and isopropanol was measured at frequencies ranging from 0.5 to 3.0 GHz using the measurement procedure above. As a result, we confirmed the frequency characteristics of the complex permittivity for a wide variety of high-loss liquid materials.
ER -