Accession Number : ADD008398

Title :   Array Antenna Controller.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Shreve,James S

Report Date : 23 Dec 1980

Pagination or Media Count : 13

Abstract : A coherent optical processor antenna controller for controlling the pattern emitted by an array antenna. Since the amplitude and phase of the antenna excitation signals are related to the far field by the Fourier transform function, a coherent optical processor, which uses lenses to take the Fourier transforms of images may be used to control the antenna excitation. The shape and direction of the pattern may be controlled by the transmittance distribution of a transparency in the processor and a null may be formed by the utilization of an additional slide. (Author)

Descriptors :   *Patents, *Optical processing, *Antenna radiation patterns, *Antenna arrays, Fourier transformation, Coherent radiation, Far field, Lenses, Excitation, Control, Antennas

Subject Categories : Electrical and Electronic Equipment
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE