自由空间法测定18 ~ 110 GHz范围内生物样品的复介电常数

... International Symposium on Applied Sciences in Biomedical and Communication Technologies. International Symposium on Applied Sciences in Biomedical and Communication Technologies Pub Date : 2011-10-26 DOI:10.1145/2093698.2093812

H. Segawa, K. Sasaki, M. Mizuno, K. Wake, Soichi Watanabe, O. Hashimoto

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引用次数: 2

摘要

用自由空间法测量了18 ~ 110 GHz范围内的复介电常数。测定了生理盐水和猪血。将这些测量结果与18 ~ 50 GHz同轴探头法测量结果进行了比较。并对18 ~ 110 GHz的Cole-Cole模型的测量结果进行了比较。结果表明，在18 ~ 50 GHz范围内，在生理水和猪血中，自由空间法和同轴探针法测得的复介电常数的差异均小于10%。在18 ~ 110 GHz范围内，自由空间法与Cole-Cole模型的复介电常数差异小于8%。结果表明，自由空间法是测定毫米波频率范围内生物样品复介电常数的有效方法。

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Complex permittivities of biological samples with the free space method from 18 to 110 GHz

Complex permittivities were measured with the free space method from 18 to 110 GHz. Physiological saline and porcine blood ware measured. These measurement results were compared with those obtained from the coaxial probe method from 18 to 50 GHz. The measurement results were also compared with those derived from Cole-Cole models from 18 to 110 GHz. It is shown that differences in the measured complex permittivities between the free space method and the coaxial probe method were smaller than 10% from 18 to 50 GHz in both physiological water and porcine blood. Furthermore, the differences in the complex permittivities between the free space method and Cole-Cole models were smaller than 8% from 18 to 110 GHz. It was concluded that the free space method is an effective technique to determine complex permittivities of biological samples in the millimeter-wave frequency region.

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... International Symposium on Applied Sciences in Biomedical and Communication Technologies. International Symposium on Applied Sciences in Biomedical and Communication Technologies

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