Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array
Patent
1998-02-02
1999-07-13
Tarcza, Thomas
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a steerable array
342368, H01Q 322
Patent
active
059232919
ABSTRACT:
An array antenna is steered by moving a set of optical fibers of different optical length between a number of light signal sources and an array of antennas. By changing the lengths of the optical paths of the different light signals sources, the wave front can be steered. The light signal traverses three sections of optical delay lines with at least one selectable optical length. In the first section, light signal from a point source travels through a first optical delay line and a lens to diverge and collimate the light beam with increased cross section. The collimated light beam is focused by second lens and incident one second optical line of selectable optical length. The light beam exiting from the other end of the second optical line is collimated again by a third lens to face a third optical line. The collimated light exiting from the second optical line is focused again by a fourth lens to feed the third optical line, which is connected at the other end to one element of the antenna array. This defocused and focused arrangement allows the steering of the radiation pattern to be continuous and not intermittent. The second fiber optic lines are mounted on a rotatable disk with respect to the first and third optical lines which are terminated on a concentric stationary disk. The antenna array can serve both for a transmitter or a receiver, which can be a signal processor.
REFERENCES:
patent: 4814773 (1989-03-01), Wechsberg et al.
patent: 5325102 (1994-06-01), Page
patent: 5345321 (1994-09-01), DeJule et al.
patent: 5367305 (1994-11-01), Volker et al.
patent: 5400038 (1995-03-01), Rita et al.
Lin Patent Agent H. C.
Phan Dao L.
Tarcza Thomas
LandOfFree
Optically controlled antenna, providing continuous coverage does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optically controlled antenna, providing continuous coverage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optically controlled antenna, providing continuous coverage will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2279919