Application of Reproducible Measurements of Complex Permittivities to Crystalline Lens From 500 MHz to 50 GHz

Most of fundamental biological tissues and organs, such as skin, muscle, and brain, are wet and solid. Water evaporation on the sample surfaces generally deteriorates the measurement of complex permittivities, especially in quasi-millimeter wave and millimeter wave bands. This letter, therefore, int...

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Bibliographic Details
Published in:IEEE transactions on electromagnetic compatibility 2012-12, Vol.54 (6), p.1298-1301
Main Authors: Wakatsuchi, H., Sakai, T., Watanabe, S., Kojima, M., Yamashiro, Y., Sasaki, H., Sasaki, K., Hashimoto, O.
Format: Article
Language:English
Subjects:
Bands
Biological
Biological tissue
Biological tissues
Classical and quantum physics: mechanics and fields
Complex permittivity
Crystal structure
Deterioration
Electromagnetic compatibility
Exact sciences and technology
Foundations, theory of measurement, miscellaneous theories (including aharonov-bohm effect, bell inequalities, berry's phase)
Lenses
Liquids
Mass and density
Measurement and error theory
Measurements common to several branches of physics and astronomy
Metrology
Metrology, measurements and laboratory procedures
millimeter wave
Millimeter wave technology
Permittivity measurement
Physics
Quantum mechanics
Spatial dimensions (e.g.: position, lengths, volume, angles, displacements, including nanometer-scale displacements)
water evaporation
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Summary:Most of fundamental biological tissues and organs, such as skin, muscle, and brain, are wet and solid. Water evaporation on the sample surfaces generally deteriorates the measurement of complex permittivities, especially in quasi-millimeter wave and millimeter wave bands. This letter, therefore, introduces a new sample preparation procedure for avoiding the water-evaporation effect. This method is first validated with liquid biological tissue, i.e., whole blood, and then applied to a wet and solid biological tissue, i.e., crystalline lenses. The results show that the new method enables reproducible measurements of the complex permittivities of wet and solid biological samples.
ISSN:0018-9375
1558-187X
DOI:10.1109/TEMC.2012.2212443