Accession Number : AD0770211

Title :   Microwave Holography for Analysis of Diffraction.

Descriptive Note : Final rept. Jul 72-Aug 73,

Corporate Author : GENERAL DYNAMICS SAN DIEGO CALIF ELECTRONICS DIV

Personal Author(s) : Hayward,R. A. ; Rope,E. L. ; Tricoles,G.

Report Date : SEP 1973

Pagination or Media Count : 73

Abstract : A method is described for determining the field distribution near a transmitting antenna. The method involves measurements over a spherical surface and computationally reconstructs the nearfields. The method is holographic because the complex conjugates of the measured field components are used. The method applies to planar or conformal arrays. Experimental results are given. Reconstructed nearfields are compared with measured values, and farfield patterns computed from the reconstructed nearfields are compared with measured patterns for several excitations of four element arrays. (Author)

Descriptors :   *Antennas, *Near field, *Holography, Diffraction, Microwave equipment, Antenna radiation patterns, Interactions, Phase, Scattering

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE