Results 261 to 270 of about 6,016,080 (298)

A resonance system for measuring complex permittivity of materials

2013 International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves, 2013
Preliminarily it has been shown [1] that an open resonator (OR) attached to a certain-length superdimensional circular waveguide only maintains axially-symmetric TE01q oscillations (see Fig. 1, b and c). In addition, the resonant system of the kind features a single-frequency response over a wide frequency range and, hence, can be adopted for the ...
A.Yu. Popkov, I.K. Kuzmichev
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Complex Permittivity Measurement Using the Annular Slot

2005 IEEE Antennas and Propagation Society International Symposium, 2005
A new technique using a multi-port annular slot antenna for the measurement of complex permittivity is developed. The benefit of this now technique is that a two port network can be used on a planar device. The forward case of measuring S/sub 21/ is combined with a simple but effective calibration technique to compensate for the feed network.
E. Kratzenberg, M.N. Afsar, Y. Wang
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Measurement of Complex Dielectric Permittivity of Quartz Systems

Materials Science Forum, 2019
The article describes the problem of the experimental determination of complex dielectric permittivity for natural, activated, and modified quartz systems. The results of determination of specific surface, complex dielectric permittivity, sands porosity are presented in this article.
Vitaly Smolko, Elizaveta Antoshkina
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Nondestructive measurement of complex permittivity of sheet material

Microwave and Optical Technology Letters, 2003
AbstractIn this paper, we present a new model to determine the dielectric constant and the loss tangent of dielectric material in the sheet/slab form, with both low and high relative permittivity. A non‐destructive testing method is used, based on the microstrip patch and line resonators.
A. K. Verma, null Nasimuddin
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Measurement of complex permittivity of liquid at V band

2004 Asia-Pacific Radio Science Conference, 2004. Proceedings., 2005
It is well known that a dielectric constant is essential and has frequency dispersion. So, great numbers of dielectric constant measurement methods have been studied at many frequency bands. Recently, commercial frequency bands have shifted to higher frequency regions.
M. Hanazawa, K. Fukunaga, S. Watanabe, Y. Yamanaka, O. Hashimoto   +4 more
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Measurement of Complex Permittivity of Asphalt Pavement Materials

Journal of Transportation Engineering, 1999
To facilitate applications of road penetration radar and other nondestructive testing technologies on roads, an apparatus was developed for the measurement of complex permittivity of construction materials. The system consists of an automatic network analyzer, a sample holder, coaxial cable connections, and data processing software.
J. Q. Shang, J. A. Umana, F. M. Bartlett, J. R. Rossiter   +3 more
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Complex permittivity measurements in adaptive microwave complex

2011
Complex permittivity measurement issues are under review in this work. After considering of all existing methods it was decided to choose one of them, that according to the expert point of view is the most perspective one for usage in microwave technological complex which are performing temperature and microwave processing of oil-inwater emulsion ...
Morozov, Gennadiy A., Pyarnoya, A., Shakirov, A. S.   +2 more
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Waveguide measurement technique for the complex permittivity of materials

2004 14th International Crimean Conference "Microwave and Telecommunication Technology" (IEEE Cat. No.04EX843), 2004
The waveguide technique of measuring the complex permittivity of materials is considered. The exact electrodynamical model of the sensor similar to a dielectric tube in a rectangular waveguide is used for a solution of an inverse electrodynamical task that allows reducing the error of measurement results.
V.K. Berezovsky, S.V. Drobot, M.S. Khandogin, V.N. Rusakovich   +3 more
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Complex Permittivity Measurement Based on Transmitted Power

2019 IEEE Indian Conference on Antennas and Propogation (InCAP), 2019
This paper presents a novel complex permittivity measurement using transmitted-power function enforced at multiple frequencies. The method can easily retrieve the dielectric constants of low-loss and lossy materials utilizing the transmitted power without the need for phase information.
Seyed Hossein Mirjahanmardi, Omar M. Ramahi   +1 more
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Microwave measurements of the complex permittivities and permeabilities of magnetodielectrics

Measurement Techniques, 1996
A method is proposed for determining complex permittivities ɛ* and permeabilities μ* by analyzing the interaction of a plane electromagnetic wave with a plane-parallel sample in free space. Results of the method are presented.
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