One-Port Vector Network Analyzer Characterization of Soil Dielectric Spectrum

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


Accurate determination of soil complex-dielectric-permittivity spectrum is important for various applications,especially for the development of soil moisture sensors that canbe used, e.g., in agriculture and for environmental monitoring.Wideband measurement of soil dielectric spectrum requires theuse of large-diameter coaxial transmission-line cells connected toa vector network analyzer (VNA). We present a new method forsoil dielectric-spectrum characterization in the frequency rangeof 0.05–3 GHz. Our methodology is based on a wideband one-port VNA measurement of a soil sample inserted into a large-diameter coaxial cell. The key part of our approach is the useof a variable load terminating the coaxial cell to extract thescattering parameters of the sample, which are then fed into adielectric permittivity extraction algorithm. The system providesquick and repeatable measurements without the use of flexiblemicrowave cables. Also, application of a portable one-port VNAsignificantly lowers the cost of the system in comparison to two-port setups. We verify our methodology based on measurementsof reference materials—polytetrafluoroethylene, isopropanol, andethanol—and then apply it to characterize the soil sampleswith different moisture content and salinity. Experimental resultsconfirm the validity of our approach
Author Arkadiusz Lewandowski (FEIT / PE)
Arkadiusz Lewandowski,,
- The Institute of Electronic Systems
, Agnieszka Szyplowska
Agnieszka Szyplowska,,
, A. Wilczek
A. Wilczek,,
, M. Kafarski
M. Kafarski,,
, J. Szerement
J. Szerement,,
, W. Skierucha
W. Skierucha,,
Journal seriesIEEE Transactions on Geoscience and Remote Sensing, ISSN 0196-2892
Issue year2019
Pages3661 - 3676
Publication size in sheets0.75
Keywords in EnglishCalibration, dielectricmeasurement, microwave measurements, soil measurements, soil moisture andsalinity
ASJC Classification1900 General Earth and Planetary Sciences; 2208 Electrical and Electronic Engineering
Languageen angielski
08621043.pdf 7.97 MB
Score (nominal)200
Score sourcejournalList
ScoreMinisterial score = 200.0, 30-06-2020, ArticleFromJournal
Publication indicators WoS Citations = 2; Scopus Citations = 3; GS Citations = 4.0; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 2.743; WoS Impact Factor: 2018 = 5.63 (2) - 2018=5.786 (5)
Citation count*4 (2020-09-08)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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