Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array
Patent
1991-11-06
1994-11-15
Blum, Theodore M.
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a steerable array
342424, H01Q 322, H01Q 324
Patent
active
053652398
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 superposition 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.
A phased array antenna includes an optical circuit for providing at least one optical output signal modulated according to an RF source and an antenna module for demodulating the at least one optical output signal and communicating with at least one RF radiating element, 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 superposition 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 planar beams according to a beam control command.
REFERENCES:
patent: 3878520 (1975-04-01), Wright et al.
patent: 4864312 (1989-09-01), Huignard et al.
patent: 4885589 (1989-12-01), Edward et al.
patent: 4929956 (1990-05-01), Lee et al.
patent: 4965603 (1990-10-01), Hong et al.
Stilwell et al., "Fiber Optic Feed", NRL Memorandum Report 6741, Nov. 6, 0, 44 pages.
Blum Theodore M.
McDonnell Thomas E.
Miles Edward F.
The United States of America as represented by the Secretary of
LandOfFree
Fiber optic feed and phased array antenna does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fiber optic feed and phased array antenna, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fiber optic feed and phased array antenna will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1100636