Analytical Uncertainty Evaluation of Material Parameter Measurements at THz Frequencies
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F20%3AN0000020" target="_blank" >RIV/00177016:_____/20:N0000020 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007/s10762-020-00723-0" target="_blank" >https://link.springer.com/article/10.1007/s10762-020-00723-0</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10762-020-00723-0" target="_blank" >10.1007/s10762-020-00723-0</a>
Alternative languages
Result language
angličtina
Original language name
Analytical Uncertainty Evaluation of Material Parameter Measurements at THz Frequencies
Original language description
Material parameter extraction algorithms are studied and simplified both for transmission-reflection and transmission-only methods. The simplified relations, which are closed-form in some cases, are analyzed to establish the uncertainty sensitivity coefficients and therefore, to clarify the main uncertainty contributions and reduce the systematic and random errors. Simple closed-form expressions presented in this paper show the sensitivity of the extracted permittivity to each input parameter such as S21 (phase and amplitude), frequency, and the material thickness. Results are presented for several material slabs for three waveguide frequency ranges 75–110 GHz, 140–220 GHz, and 500–750 GHz using VNA-based free-space technique in the THz domain. Comparison of results (and the associated uncertainties) between different algorithms can help to choose the optimal one suitable for lossy or lowloss materials, and thin or thicker slabs. This can explain why the same set of S-parameters data usually gives different final results (permittivity and permeability) with different algorithms and verify the reliability of the calibration and extraction process.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
—
Continuities
R - Projekt Ramcoveho programu EK
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Infrared and Millimeter Waves
ISSN
1866-6892
e-ISSN
1866-6906
Volume of the periodical
41
Issue of the periodical within the volume
10
Country of publishing house
US - UNITED STATES
Number of pages
19
Pages from-to
1199-1217
UT code for WoS article
000552186700001
EID of the result in the Scopus database
2-s2.0-85088569266