Communications: directive radio wave systems and devices (e.g. – Directive – Including antenna pattern plotting
Patent
1988-07-05
1990-09-04
Issing, Gregory C.
Communications: directive radio wave systems and devices (e.g.,
Directive
Including antenna pattern plotting
342174, 343703, H01Q 300, G01S 740, G01R 3500
Patent
active
049548344
ABSTRACT:
A movable optical fiber system for directing test and calibration signals to the individual transmit-receive modules of a phased array antenna is provided with a laser device for generating optic signals. The laser device also includes a circuit for amplitude modulating the optic signals prior to their exiting the laser device. A fixed length of fiber-optic cable is connected with the laser device for directing the generated optic signals to a photodiode secured for movement to a motion device positioned adjacent the antenna face. The photodiode converts the optic signals to equivalent microwave signals, and the microwave signals are thereafter passed through a waveguide connected with the photodiode. Both the photodiode and waveguide are moved in a preselected linear path across the antenna face by the motion device; and, as the motion device operates to move the photodiode and waveguide, microwave test and calibration signals are discharged from the waveguide to be received by the individual transmit-receive modules in succession.
REFERENCES:
patent: 4453164 (1984-06-01), Patton
"Precise Measurements of Antenna Characteristics Using A Fiber Optical Link"; Hornung-Pendersen et al., 11-1978, pp. 278-281.
Issing Gregory C.
Spadacene Joseph C.
Westinghouse Electric Corp.
LandOfFree
Movable optical fiber system for directing microwaves does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Movable optical fiber system for directing microwaves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Movable optical fiber system for directing microwaves will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-444661