Title :
How strict are theoretical bounds for dielectric properties of mixtures?
Author_Institution :
Electromagn. & Acoust. Lab., Swiss Fed. Inst. of Technol., Lausanne, Switzerland
fDate :
4/1/2002 12:00:00 AM
Abstract :
This report discusses bounds for mixing rules. Several theoretical bounds and limits for the effective permittivity of heterogeneous media have been derived. However, it may happen that the bounds are trespassed in the real-life applications. Examples of such behavior are given for snow, random media simulations, lossy heterogeneous materials, and magnetic and magnetoelectric materials. Reasons for the bound-violation phenomenon are discussed
Keywords :
backscatter; geophysical techniques; hydrological techniques; radar cross-sections; radar theory; remote sensing by radar; snow; terrain mapping; backscatter; bound-violation; dielectric property; geophysical measurement technique; heterogeneous media; hydrology; land surface; lossy heterogeneous materials; mixing rule; mixture; model; percolation; permittivity; radar scattering; radar theory; random media; remote sensing; snow cover; snowpack; terrain mapping; theoretical bounds; theory; Dielectric materials; Electromagnetics; Helium; Magnetic materials; Nonhomogeneous media; Permittivity; Physics; Predictive models; Random media; Snow;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
DOI :
10.1109/TGRS.2002.1006369
