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Accession Number:
AD0499674
Title:
Crossed Dipole Antenna Experiments.
Corporate Author:
ITT ELECTRO-PHYSICS LABS INC COLUMBIA MD
Report Date:
1970-09-01
Abstract:
In an earlier program, under the sponsorship of the Advanced Research Projects Agency ARPA, a crossed dipole array was developed and installed. The vertically disposed, planar, crossed dipole array contained 32 crossed-dipole element pairs arranged in a matrix of four crossed element pairs in the vertical direction by eight in the horizontal direction. Each cross was composed of a pair of broad-band intersecting dipoles lying within a vertical plane with the two dipoles inclined in opposite senses at 45 degrees from the horizontal. The experiment described here had two major objectives 1 to measure the horizontal variations of the wavefront across the array and, if possible, to relate those variations to the polarization behavior of the incident wave and 2 to use three crosses of a vertical column to permit determination of the complex Fresnel ground-reflection coefficients, the state of wave polarization in space, and the vertical angle of arrival of the wave. The report derives the mathematical basis for solving for the outputs required by objective, and discusses the computer program yielding the required outputs. Author
Descriptive Note:
Project rept. Oct-Nov 69,
Pages:
0046
Contract Number:
Nonr-4204(00)
File Size:
0.00MB
