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Please use this identifier to cite or link to this item: http://purl.org/purl/2981

Title: Broadband coaxial cavity resonator for complex permittivity measurements of liquids
Authors: Raveendranath, U
Bijukumar, S
Mathew, K T
Keywords: coaxial cavity resonators
complex permittivity
Issue Date: Dec-2000
Publisher: IEEE
Abstract: A novel cavity perturbation technique using coaxial cavity resonators for the measurement of complex permittivity of liquids is presented. The method employs two types of resonators (Resonator I and Resonator II). Resonator I operates in the frequency range 600 MHz-7 GHz and resonator II operates in the frequency range 4 GHz-14 GHz. The introduction of the capillary tube filled with the sample liquid into the coaxial resonator causes shifts in the resonance frequency and loaded Q-factor of the resonator. The shifts in the resonance frequency and loaded Q-factor are used to determine the real and imaginary parts of the complex permittivity of the sample liquid, respectively. Using this technique, the dielectric parameters of water and nitrobenzene are measured. The results are compared with those obtained using other standard methods. The sources of errors are analyzed.
URI: http://dyuthi.cusat.ac.in/purl/2981
ISSN: 0018-9456
Appears in Collections:Dr. K T Mathew

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