Microwave method for reference-plane-invariant and thickness-independent permittivity determination of liquid materials

Küçük Resim Yok

Tarih

2014

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

Künye