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Electronics and Communications in Japan (Part III: Fundamental Electronic Science), 1990 AbstractFrom the measurement of a reflected voltage waveform from a biological body for a step‐like voltage waveform, the frequency characteristics of the complex relative permittivity are studied and the following results are obtained: (1) if the blood flow and sweating are normal, the value of tanδ in the mouth is 4 ‐ 6 at about 10 MHz because ...
Tsunehito Higashi, Khoshi Ishihara
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(Invited) Complex Relative Permittivity of UV-C Transparent AlN
ECS Transactions, 2021 Rafael Dalmau +3 more
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IEEE Transactions on Terahertz Science and Technology, 2014 For measuring complex relative permittivity of more than 300 GHz in the THz region, time-domain spectroscopy (TDS) is usually used. On the other hand, a free-space method using a vector network analyzer (VNA) is used below 300 GHz. However, these methods have not been compared and continuity of complex relative permittivity measurement around 300 GHz ...
Toshihide Tosaka +3 more
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Relative complex permittivity and its dependence on frequency
World Journal of Engineering, 2017Purpose This paper aims to give a brief overview of dielectric properties, relative complex permittivity and its dependence on frequency. The significance of different approaches to complex permittivity is also discussed. Design/methodology/approach The different mechanisms of polarization are then presented.
Giannoukos, Georgios +2 more
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Equations for Complex Relative Permittivity of Saline Water
IETE Technical Review, 1988Equations hare been presented to calculate the complex relative permittivity of saline water as a function of salt content and temperature of water. The results obtained from these equations show good agreement with the published measured data.
Shushil K Aggarwal, R H Johnston
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Relative permittivity and electrical conductivity of some divalent metal alginate complexes
Materials Letters, 1997Abstract The influence of a frequency on the relative permittivity e ′ Γ as well as the AC conductivity of metal alginate complexes (Ba 2+ , Sr 2+ , Pb 2+ , Cd 2+ or Zn 2+ ions) as a function of temperature has been investigated.The average values of the activation energy obtained from the experimental data indicate that the electrical ...
S.M.Abdel Wahab +4 more
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A new measurement technique for obtaining the complex relative permittivity of terrain surfaces
IEEE Transactions on Geoscience and Remote Sensing, 2002A new method for measuring the effective complex relative permittivity of a reflecting surface is presented. The approach is based on the two-ray model. We derive an equation of a circle representing the complex reflection coefficient which relates the incidence angle, frequency, and received power from the path gain using the two-ray model.
null Heung-Soo Kim, R.A. Narayanan
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