A multiconductor probe for broadband dielectric-spectrum measurements

Arkadiusz Lewandowski , A. Wilczek , A. Szypłowska , M. Kafarski , J. Szerement , W. Skierucha

Abstract

We present a new probe design for broadband dielectric spectrum measurements of powdery and granular materials. Our probe is based on a multiconductor transmission line consisting of a signal conductor surrounded by multiple ground conductors. We present approximate design equations for such a multiconductor structure and perform electromagnetic simulations in order to verify performance of our probe. These simulations mimic a calibration procedure of a probe and also measurements of PTFE, isopropanol, and methanol. Based on those simulated measurements we further extract the dielectric spectrum of the materials under test. Our analysis shows that at least eight ground conductors are required for an accurate measurement in the 0.2–3 GHz frequency range.
Author Arkadiusz Lewandowski (FEIT / PE)
Arkadiusz Lewandowski,,
- The Institute of Electronic Systems
, A. Wilczek
A. Wilczek,,
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, A. Szypłowska
A. Szypłowska,,
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, M. Kafarski
M. Kafarski,,
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, J. Szerement
J. Szerement,,
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, W. Skierucha
W. Skierucha,,
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Pages77-81
Publication size in sheets0.5
Book Proc. 12th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, 2018
Keywords in Englishfrequency-domain reflectometry, multiconduc- tor probe, offset-short calibration, electromagnetic simulations, dielectric spectrum
DOIDOI:10.1109/ISEMA.2018.8442307
URL https://ieeexplore.ieee.org/document/8442307/
Languageen angielski
File
lewandowski_2018.pdf of 24-09-2018
492.11 KB
Score (nominal)15
ScoreMinisterial score = 15.0, 24-09-2018, BookChapterMatConf
Ministerial score (2013-2016) = 15.0, 24-09-2018, BookChapterMatConf
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