Effective permittivity of saline ice under thermal variation
A model for calculating the effective permittivity of saline ice under thermal variation is presented. The model includes multiphase inhomogeneities with multiple species characterized by orientation, size and shape distributions. The model is used to derive the effective permittivity as a function...
| Main Authors: | , , , , , |
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| Format: | Other/Unknown Material |
| Language: | unknown |
| Published: |
1992
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| Subjects: | |
| Online Access: | http://ntrs.nasa.gov/search.jsp?R=19930063897 |
| Summary: | A model for calculating the effective permittivity of saline ice under thermal variation is presented. The model includes multiphase inhomogeneities with multiple species characterized by orientation, size and shape distributions. The model is used to derive the effective permittivity as a function of temperature under the strong fluctuation theory which is extended to account for the complexity. The results calculated from the model are compared with experimental data at 4.8 GHz for saline ice grown at the US Army Cold Regions Research and Engineering Laboratory (CRREL). The comparison between measured and calculated complex permittivities is good for the imaginary part, and the difference is within 10 percent for the real part. |
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