Dielectric Measurement of Liquids via the Cut-off Circular Waveguide Reflection Method After S11 Calibration Using Three Reference Materials

2020 ◽  
Author(s):  
Kouji Shibata
Keyword(s):  
Reference Materials ◽  
Circular Waveguide ◽  
Dielectric Measurement ◽  
Reflection Method

scholarly journals Open-Ended Coaxial Cable Selection for Measurement of Liquid Dielectric Properties via the Reflection Method

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Jingchen Wang ◽  
Eng Gee Lim ◽  
Mark Paul Leach ◽  
Zhao Wang ◽  
Ka Lok Man
Keyword(s):  
Dielectric Properties ◽  
Reflection Coefficient ◽  
Relative Error ◽  
Measurement Accuracy ◽  
Liquid Dielectric ◽  
Coaxial Cable ◽  
Dielectric Measurement ◽  
Reflection Method ◽  
Careful Choice ◽  
Selection For

An open-ended coaxial cable is used to measure the dielectric properties of lossy liquid. The method which is based on the measurement of the reflection coefficient of the open-ended cable makes it easy to operate and postprocess. To meet the accuracy requirements, the dimensions of the coaxial cable need to be taken into consideration; therefore, it is necessary to select an appropriate coaxial cable for the measurement. This paper investigates the influence of cable dimensions on dielectric measurement accuracy. With careful choice of the coaxial cable, the relative error of calculated results can be less than 0.1%.

Dielectric Measurement Of Multi-Layered Medium Using An Open-Ended Waveguide

1996 ◽  
Vol 430 ◽  
Author(s):  
O. Tantot ◽  
M. Chatard-Moulin ◽  
P. Guillon
Keyword(s):  
Reflection Coefficient ◽  
Complex Permittivity ◽  
Layered Medium ◽  
Circular Waveguide ◽  
Air Gap ◽  
Dielectric Measurement ◽  
Microwave Measurement ◽  
Measurement Devices

AbstractThe use of a circular waveguide radiating into a multi-layered media allows the characterization of heterogeneous and fluid subtances. Many microwave measurement devices, based on reflection coefficient measurements, are subjected to air gap problems that introduce some inaccuracy in the determination of the unknown complex permittivity of the materials. Our purpose is to try and take the air gap into account in these measurements.

Demonstration of dielectric measurement using a probe-backside reflection method up to 300 GHz

2019 ◽  
Vol 58 (SL) ◽  
pp. SLLE02 ◽  
Author(s):  
Ryo Sakamaki ◽  
Masahiro Horibe ◽  
Manabu Yoshida ◽  
Takaaki Tsurumi
Keyword(s):  
Dielectric Measurement ◽  
Reflection Method

A coaxial-circular waveguide for dielectric measurement

1991 ◽  
Vol 29 (2) ◽  
pp. 321-330 ◽  
Author(s):  
M.R. Taherian ◽  
D.J. Yuen ◽  
T.M. Habashy ◽  
J.A. Kong
Keyword(s):  
Circular Waveguide ◽  
Dielectric Measurement
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