Broadband Extraction of Sample Permittivity From Microwave Planar Transmission Lines
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F25%3A00648157" target="_blank" >RIV/67985882:_____/25:00648157 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/00216208:11320/25:10513043
Výsledek na webu
<a href="https://doi.org/10.1109/TMTT.2025.3557666" target="_blank" >https://doi.org/10.1109/TMTT.2025.3557666</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/TMTT.2025.3557666" target="_blank" >10.1109/TMTT.2025.3557666</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Broadband Extraction of Sample Permittivity From Microwave Planar Transmission Lines
Popis výsledku v původním jazyce
Electric fields and their interactions with living organisms and molecular components are central to the development of novel biomedical diagnostic and therapeutic techniques. The electric field interaction with biomaterials is dictated by their dielectric permittivity. However, progress in this field is often hindered by the need for large sample volumes to determine complex permittivity or by lengthy measurement times. Here, we introduce a universal method for extracting broadband complex dielectric permittivity, demonstrated using a conductor-backed coplanar waveguide (CBCPW). This method enables rapid, broadband characterization of microliter-scale (mu L) biomolecular solutions in high-permittivity, water-based buffers across a broad frequency range. First, the technique is validated through S-parameters obtained from full-wave electromagnetic simulations. It is then applied to experimentally measured S-parameters of aqueous solutions containing specific biomolecules at varying concentrations. Comparisons with an independent reference method confirm the accuracy of the extracted permittivity values. Overall, this new method provides a fast, precise, and sample-efficient means of measuring broadband complex permittivity, demonstrating its potential as a powerful tool for biomedical research
Název v anglickém jazyce
Broadband Extraction of Sample Permittivity From Microwave Planar Transmission Lines
Popis výsledku anglicky
Electric fields and their interactions with living organisms and molecular components are central to the development of novel biomedical diagnostic and therapeutic techniques. The electric field interaction with biomaterials is dictated by their dielectric permittivity. However, progress in this field is often hindered by the need for large sample volumes to determine complex permittivity or by lengthy measurement times. Here, we introduce a universal method for extracting broadband complex dielectric permittivity, demonstrated using a conductor-backed coplanar waveguide (CBCPW). This method enables rapid, broadband characterization of microliter-scale (mu L) biomolecular solutions in high-permittivity, water-based buffers across a broad frequency range. First, the technique is validated through S-parameters obtained from full-wave electromagnetic simulations. It is then applied to experimentally measured S-parameters of aqueous solutions containing specific biomolecules at varying concentrations. Comparisons with an independent reference method confirm the accuracy of the extracted permittivity values. Overall, this new method provides a fast, precise, and sample-efficient means of measuring broadband complex permittivity, demonstrating its potential as a powerful tool for biomedical research
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20201 - Electrical and electronic engineering
Návaznosti výsledku
Projekt
<a href="/cs/project/GX20-06873X" target="_blank" >GX20-06873X: SubTHz chipová zařízení pro řízení proteinových nanopřístrojů</a><br>
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2025
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
IEEE Transactions on Microwave Theory and Techniques
ISSN
0018-9480
e-ISSN
1557-9670
Svazek periodika
73
Číslo periodika v rámci svazku
9
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
12
Strana od-do
6707-6718
Kód UT WoS článku
001480212900001
EID výsledku v databázi Scopus
2-s2.0-105003695005