Complex Frequency Perturbation of a Microwave Cavity Containing a Lossy Liquid*
- 1 January 1975
- journal article
- research article
- Published by Taylor & Francis in Journal of Microwave Power
- Vol. 10 (3) , 309-313
- https://doi.org/10.1080/00222739.1975.11688966
Abstract
Theoretical calculations for a resonant cavity loaded with a lossy liquid contained in a glass tube were made. Dielectric losses were introduced in calculations which give theoretical variations of the resonance frequency and the Q factor with the sample and the container characteristics. Application to the case of a liquid sample whose tan δ varies from 0 to 0.5 confirms that the influence of the imaginary part of the permittivity (ε1”)on the measurement of the real part (ε1’) is smaller than 1%.Keywords
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