Dielectric Measurement in Liquids Using an Estimation Equation without Short Termination via the Cut-Off Circular Waveguide Reflection Method
Summary :
In this study, a theory for estimating the dielectric properties for unknown materials from three reference materials without using a short condition was developed. Specifically, the relationships linking the S parameter, electrostatic capacity, the measurement instrument and the jig were determined for four equivalent circuits with three reference materials and an unknown material inserted into the jig. An equation for estimation of complex permittivity from three reference materials without short termination was thus derived. The formula's accuracy was then numerically verified for cases in which values indicating the dielectric properties of the reference materials and the actual material differed significantly, thereby verifying the effectiveness of the proposed method. Next, it was also found that dielectric constant could be correctly determined even when the observation plane was moved to the SOL calibration plane on the generator side. The dielectric properties of various liquids in the 0.50, 1.0 and 2.5 GHz bands as measured using the proposed method were then compared with corresponding conventional-method values. Finally, the validity of the proposed method was also indicated by measurement values showing the frequency characteristics of dielectric properties at frequencies ranging from 0.50 to 3.0 GHz.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E101-C No.8 pp.627-636
- Publication Date
- 2018/08/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.E101.C.627
- Type of Manuscript
- Special Section PAPER (Special Section on Recent Advances in Simulation Techniques and Their Applications for Electronics)
- Category
Authors
Kouji SHIBATA
Hachinohe Institute of Technology
Keyword
Latest Issue
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Kouji SHIBATA, "Dielectric Measurement in Liquids Using an Estimation Equation without Short Termination via the Cut-Off Circular Waveguide Reflection Method" in IEICE TRANSACTIONS on Electronics,
vol. E101-C, no. 8, pp. 627-636, August 2018, doi: 10.1587/transele.E101.C.627.
Abstract: In this study, a theory for estimating the dielectric properties for unknown materials from three reference materials without using a short condition was developed. Specifically, the relationships linking the S parameter, electrostatic capacity, the measurement instrument and the jig were determined for four equivalent circuits with three reference materials and an unknown material inserted into the jig. An equation for estimation of complex permittivity from three reference materials without short termination was thus derived. The formula's accuracy was then numerically verified for cases in which values indicating the dielectric properties of the reference materials and the actual material differed significantly, thereby verifying the effectiveness of the proposed method. Next, it was also found that dielectric constant could be correctly determined even when the observation plane was moved to the SOL calibration plane on the generator side. The dielectric properties of various liquids in the 0.50, 1.0 and 2.5 GHz bands as measured using the proposed method were then compared with corresponding conventional-method values. Finally, the validity of the proposed method was also indicated by measurement values showing the frequency characteristics of dielectric properties at frequencies ranging from 0.50 to 3.0 GHz.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E101.C.627/_p
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@ARTICLE{e101-c_8_627,
author={Kouji SHIBATA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Dielectric Measurement in Liquids Using an Estimation Equation without Short Termination via the Cut-Off Circular Waveguide Reflection Method},
year={2018},
volume={E101-C},
number={8},
pages={627-636},
abstract={In this study, a theory for estimating the dielectric properties for unknown materials from three reference materials without using a short condition was developed. Specifically, the relationships linking the S parameter, electrostatic capacity, the measurement instrument and the jig were determined for four equivalent circuits with three reference materials and an unknown material inserted into the jig. An equation for estimation of complex permittivity from three reference materials without short termination was thus derived. The formula's accuracy was then numerically verified for cases in which values indicating the dielectric properties of the reference materials and the actual material differed significantly, thereby verifying the effectiveness of the proposed method. Next, it was also found that dielectric constant could be correctly determined even when the observation plane was moved to the SOL calibration plane on the generator side. The dielectric properties of various liquids in the 0.50, 1.0 and 2.5 GHz bands as measured using the proposed method were then compared with corresponding conventional-method values. Finally, the validity of the proposed method was also indicated by measurement values showing the frequency characteristics of dielectric properties at frequencies ranging from 0.50 to 3.0 GHz.},
keywords={},
doi={10.1587/transele.E101.C.627},
ISSN={1745-1353},
month={August},}
Copy
TY - JOUR
TI - Dielectric Measurement in Liquids Using an Estimation Equation without Short Termination via the Cut-Off Circular Waveguide Reflection Method
T2 - IEICE TRANSACTIONS on Electronics
SP - 627
EP - 636
AU - Kouji SHIBATA
PY - 2018
DO - 10.1587/transele.E101.C.627
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E101-C
IS - 8
JA - IEICE TRANSACTIONS on Electronics
Y1 - August 2018
AB - In this study, a theory for estimating the dielectric properties for unknown materials from three reference materials without using a short condition was developed. Specifically, the relationships linking the S parameter, electrostatic capacity, the measurement instrument and the jig were determined for four equivalent circuits with three reference materials and an unknown material inserted into the jig. An equation for estimation of complex permittivity from three reference materials without short termination was thus derived. The formula's accuracy was then numerically verified for cases in which values indicating the dielectric properties of the reference materials and the actual material differed significantly, thereby verifying the effectiveness of the proposed method. Next, it was also found that dielectric constant could be correctly determined even when the observation plane was moved to the SOL calibration plane on the generator side. The dielectric properties of various liquids in the 0.50, 1.0 and 2.5 GHz bands as measured using the proposed method were then compared with corresponding conventional-method values. Finally, the validity of the proposed method was also indicated by measurement values showing the frequency characteristics of dielectric properties at frequencies ranging from 0.50 to 3.0 GHz.
ER -
English
