Accession Number : ADD017297

Title :   Fiber Optic Feed and Phased Array Antenna.

Descriptive Note : Patent, Filed 6 Nov 91, patented 15 Nov 94,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Stilwell, P D , Jr

Report Date : 15 Nov 1994

Pagination or Media Count : 59

Abstract : A fiber optic feed includes an optical circuit for providing at least one optical output signal modulated according to an RF source and an antenna interface for demodulating the at least one optical output signal and communicating with an antenna, wherein the optical circuit includes a coherent light source, an interferometer driven by the coherent light source for synthesizing a plurality of independently controlled planar beams, an optic modulator for frequency modulating at least one of the independently controlled planar beams according to the RF source and an optic pickup for producing the at least one optical output signal according to a super- position of the plurality of independently controlled planar beams, wherein the interferometer includes at least one beam deflector for angularly deflecting at least one of the plurality of independently controlled beams according to a beam control command.

Descriptors :   *FIBER OPTICS, *FEEDING, *ANTENNA ARRAYS, *PHASED ARRAYS, *PATENTS, FREQUENCY, OPTICS, INTERFACES, LIGHT SOURCES, COHERENT OPTICAL RADIATION, ANTENNAS, OPTICAL CIRCUITS, MODULATION, DEMODULATION, MODULATORS, RADIOFREQUENCY GENERATORS, INTERFEROMETERS, DEFLECTORS

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE