Fiber optic feed and phased array antenna
First Claim
1. A fiber optic feed comprising:
- optical circuit means for providing at least one optical output signal modulated according to an RF source; and
antenna interface means for demodulating said at least one optical output signal and communicating with an antenna;
wherein said optical circuit means comprises;
a coherent light source;
interferometer means driven by said coherent light source for synthesizing a plurality of independently controlled beams;
optic modulating means for frequency modulating at least one of said independently controlled beams according to said RF source; and
optic pickup means for producing said at least one optical output signal according to a superposition of said plurality of independently controlled beams.
1 Assignment
0 Petitions
Accused Products
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.
-
Citations
34 Claims
-
1. A fiber optic feed comprising:
-
optical circuit means for providing at least one optical output signal modulated according to an RF source; and antenna interface means for demodulating said at least one optical output signal and communicating with an antenna; wherein said optical circuit means comprises; a coherent light source; interferometer means driven by said coherent light source for synthesizing a plurality of independently controlled beams; optic modulating means for frequency modulating at least one of said independently controlled beams according to said RF source; and optic pickup means for producing said at least one optical output signal according to a superposition of said plurality of independently controlled beams. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
-
-
34. A phased array antenna comprising:
-
optical circuit means for providing at least one optical output signal modulated according to an RF source; and module means for demodulating said at least one optical output signal and communicating with at least one RF radiating element; wherein said optical circuit means comprises; a coherent light source; interferometer means driven by said coherent light source for synthesizing a plurality of independently controlled planar beams; optic modulating means for frequency modulating at least one of said independently controlled planar beams according to said RF source; and optic pickup means for producing said at least one optical output signal according to a superposition of said plurality of independently controlled planar beams.
-
Specification