Accession Number : AD0701362

Title :   DETERMINATION OF DIELECTRIC PROPERTIES OF NATURAL MATERIALS.

Descriptive Note : Technical rept. no. 5, 16 Nov 67-15 Feb 70,

Corporate Author : AEROJET-GENERAL CORP EL MONTE CALIF SPACE DIV

Personal Author(s) : Poe ,Gene A.

Report Date : FEB 1970

Pagination or Media Count : 94

Abstract : Over the period 16 November 1967 through 15 February 1970 significant laboratory studies of the dielectric properties of natural materials were performed. The methodology has been developed for making free-space measurements of the dielectric constant at microwave frequencies. Measurements of soils, water, salt water and ocean water have been performed and what are believed to be the major physical influences on the values of dielectric constant have been identified. The system used for the measurements is an ellipsometer, i.e., the receiving antenna measures the ellipticity and tilt angle of an elliptically polarized wave reflected from the material's surface. Intensive systematic error analyses have been performed and have identified and quantitized the principal error contributions to the dielectric constant values obtained. (Author)

Descriptors :   (*MATERIALS, *DIELECTRIC PROPERTIES), SOILS, WATER, SEA WATER, ELECTROMAGNETIC WAVE REFLECTIONS, DIFFRACTION, NAVAL RESEARCH

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE