Microwave method for reference-plane-invariant and thickness-independent permittivity determination of liquid materials
Küçük Resim Yok
Tarih
2014
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
An attractive transmission-reflection method based on reference-plane invariant and thickness-independent expressions has been proposed for accurate and unique retrieval of complex permittivity of dielectric liquid samples. The method uses both branch-index-independent expressions and a restricted solution set for determining unique and fast complex permittivities. A 2D graphical method has been applied to demonstrate the operation and validation of the proposed method. A uncertainty analysis has been performed to monitor how the accuracy of the proposed method can be improved by a correct selection of sample holder properties. Scattering parameter measurements of two tested reference liquids (distilled water and methanol) have been carried out for comparison of various techniques with the proposed one when the reference-planes and sample thickness are not precisely known. We note from the comparison that whereas other techniques are seriously affected by imprecise knowledge of both reference-planes and sample thickness, the proposed method removes this restriction. © 2014 AIP Publishing LLC.
Açıklama
Anahtar Kelimeler
Complex permittivity, Distilled water, Graphical methods, Imprecise knowledge, Liquid materials, Microwave methods, Sample thickness, Scattering parameter measurement, Dielectric liquids, Scattering parameters, Uncertainty analysis, Permittivity, Complex permittivity, Distilled water, Graphical methods, Imprecise knowledge, Liquid materials, Microwave methods, Sample thickness, Scattering parameter measurement, Dielectric liquids, Scattering parameters, Uncertainty analysis, Permittivity
Kaynak
Review of Scientific Instruments
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
85
Sayı
1
