|MadSci Network: Physics|
It seems the effective permittivity of inhomogeneous mixture and of homogeneous solution are quite different problems. Two references for the former problem are: Effective permittivity of dielectric mixtures Sihvola, A.H.; Kong, J.A. Geoscience and Remote Sensing, IEEE Transactions on Volume: 26 4 , July 1988 , Page(s): 420 -429 Macroscopic permittivity of dielectric mixtures with application to microwave attenuation of rain and hail Sihvola, A. Microwaves, Antennas and Propagation [see also IEE Proceedings-Microwaves, Antennas and Propagation], IEE Proceedings H Volume: 136 1 , Feb. 1989 , Page(s): 24 -28 Two references for the latter problem are: Noertemann, K. Hilland, J. Kaatze, U. Dielectric properties of aqueous NaCl solutions at microwave frequencies Journal of Physical Chemistry. v 101 n 37 Sep 11 1997. p 6864-6869 High-frequency, complex dielectric permittivity of saline solution at elevated temperatures Han, K.-F.; Butler, C.M.; Shen, L.-C.; He, H.Y.; Harris, M.A. Geoscience and Remote Sensing, IEEE Transactions on Volume: 29 1 , Jan. 1991 , Page(s): 48 -56 The last paper provided a useful bibliography for the problem.
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