Title :
A new method for measurement of complex permittivity of liquids using the phase information of standing waves
Author :
Jiang, Hanbao ; Sun, Mingyi ; Chen, Wenjing
Author_Institution :
Radio Dept., Sichuan Univ., Chengdu, China
fDate :
3/1/1995 12:00:00 AM
Abstract :
A new approach to determine the propagation constant, γ=α+jβ, of waves on a transmission line from phase measurements is proposed in this paper. This new method is very suitable for determining small α. Its distinctive feature is that the attenuation constant α of waves on the transmission line is the slope of a linear function of the displacement of a detector. Thus the attenuation constant α can be determined accurately even if it is very small
Keywords :
high-frequency transmission line measurement; microwave measurement; permittivity measurement; phase measurement; transmission line theory; coaxial slotted line; complex permittivity; liquids; phase information; phase measurements; propagation constant; standing waves; transmission line; Attenuation measurement; Equations; Liquids; Permittivity measurement; Phase measurement; Power transmission lines; Propagation constant; Transmission line measurements; Transmission line theory; Voltage;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
