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Proceedings Paper

Efficient model of an open-ended coaxial-line probe for measuring complex permittivity
Author(s): Hyun Shin; Seung-Yeup Hyun; Sang-Wook Kim; Se-Yun Kim
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Paper Abstract

A virtually conical cable model of an open-ended coaxial- line probe for converting its measured reflection coefficients into the complex permittivity of a contacted material is presented here. Both reflection coefficients of air and pure water are calculated by employing the FDTD method, and the phase difference between the calculated and the measured reflection coefficients of pure water is used as a calibration factor of the probe. The virtually conical cable model renders the conversion of the complex permittivity of dry sand more accurate and faster than the integral equation model to the aperture admittance.

Paper Details

Date Published: 6 July 2000
PDF: 8 pages
Proc. SPIE 4129, Subsurface Sensing Technologies and Applications II, (6 July 2000); doi: 10.1117/12.390630
Show Author Affiliations
Hyun Shin, Korea Univ. and Korea Institute of Science and Technology (South Korea)
Seung-Yeup Hyun, Korea Univ. and Korea Institute of Science and Technology (South Korea)
Sang-Wook Kim, Korea Institute of Science and Technology (South Korea)
Se-Yun Kim, Korea Institute of Science and Technology (South Korea)


Published in SPIE Proceedings Vol. 4129:
Subsurface Sensing Technologies and Applications II
Cam Nguyen, Editor(s)

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