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  4. A capacitive microwave sensor with guard electrode for single cell characterization
 
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A capacitive microwave sensor with guard electrode for single cell characterization

Publikationstyp
Journal Article
Publikationsdatum
2022-06-01
Sprache
English
Author
Savić, Aleksandar orcid-logo
Freiberger, Fabian 
Pörtner, Ralf orcid-logo
Jacob, Arne 
Institut
Hochfrequenztechnik E-3 
Bioprozess- und Biosystemtechnik V-1 
TORE-URI
http://hdl.handle.net/11420/10938
Enthalten in
IEEE journal of electromagnetics, RF and microwaves in medicine and biology 
Volume
6
Issue
2
Start Page
232
End Page
238
Citation
IEEE journal of electromagnetics, RF and microwaves in medicine and biology 6 (2): 232-238 (2022-06-01)
Publisher DOI
10.1109/JERM.2021.3078850
Scopus ID
2-s2.0-85105853553
Publisher
IEEE
A capacitive microwave sensor with homogeneous field distribution is presented. It relies on a high-impedance parallel-plate arrangement and a properly positioned guard electrode to mitigate fringing field effects. The distance between the capacitor plates can be as large as their diameter. Such an arrangement allows permittivity measurements of irregularly shaped objects like individual biological cells. This is demonstrated with a microchip sensor in a microfluidic setup. The calibration requires only a single reference fluid.
Schlagworte
Biology
Calibration
complex permittivity
Electrodes
Electromagnetics
fringing fields decoupling
Glass
guard electrodes
microwave sensors
Permittivity
Radio frequency
single biological cell characterization
DDC Class
600: Technik
Projekt(e)
Mikrowellensensoren für die dielektrische Charakterisierung biologischer Zellen - MEDICO 
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