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Measurement of the complex permittivity of lossy fluids at 9 GHz

A. V. Praveen Kumar

Open publisher page 11 citations

Abstract

A new technique is described to measure the complex permittivity of high loss fluids at 9 GHz. Measurements on methyl alcohol and ethylene glycol are reported. The permittivity and loss tangent are calculated from changes in the resonant frequency and Q-factor of a resonant cavity which is coupled to an evanescent waveguide which contains the fluid sample.

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What this paper is about

A new technique is described to measure the complex permittivity of high loss fluids at 9 GHz. Measurements on methyl alcohol and ethylene glycol are reported. The permittivity and loss tangent are calculated from changes in the resonant frequency and Q-factor of a resonant cavity which is coupled to an evanescent waveguide which contains the fluid sample.

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OpenAlex reports 11 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

A new technique is described to measure the complex permittivity of high loss fluids at 9 GHz. Measurements on methyl alcohol and ethylene glycol are reported. The permittivity and loss tangent are calculated from changes in the resonant frequency and Q-factor of a resonant cavity which is coupled to an evanescent waveguide which contains the fluid sample.

Key concepts: Permittivity, Dissipation factor, Materials science, Lossy compression, Relative permittivity, Resonant cavity, Loss factor, Ethylene glycol

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