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BY-NC-ND 3.0 license Open Access Published by De Gruyter June 2, 2014

High Precision Measurements of the Permittivity of Water in the Microwave Range

  • H. J. Steinhoff , A. Redhardt , K. Lieutenant , W. Chrost , G. Hess , J. Schlitter and H. J. Neumann


A practical version of a homodyne method for measuring the complex permittivity of high loss liquids at 3 and 9 GHz is described. The systematic errors are discussed in detail, because the homodyne method seems to be suitable as a simple standard method for precise measurements. The results of measurements on water in the temperature range 6 °C-45 °C are presented. The determination of all five parameters of the Debye function is possible. Finally, accuracy limiting factors for the determination of the relaxation parameters are discussed in detail

Received: 1989-12-19
Published Online: 2014-6-2
Published in Print: 1990-5-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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