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Title: Complex dielectric permittivity of some Rajasthan solids at 7.114 GHz
Authors: Pancholi, K C
Khameshra, S M
Issue Date: Jun-1994
Publisher: NISCAIR-CSIR, India
Abstract: The real and imaginary parts (´ and ´´) of the complex dielectric permittivity () of sand, sandy loam, sandy clay loam and clay with varied moisture content have been determined experimentally under laboratory conditions at 7.114 GHz using the infinite sample method. The values of ´ and ´´ first increased slowly with moisture content up to a transition point and then increased rapidly with moisture content. The transitional moisture values are found to be higher for high clay-content soils. For wet oils the experimental results are in reasonably good agreement with the Wang-Schmugge empirical model and model and, for dry soils, the model results are not consistent. The power reflection coefficients (r), emissitivity (e) and brightness temperature (TB) for the soils are also determined which show expected variations at different moisture contents.
Page(s): 201-204
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.23(3) [June 1994]

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