Opto-electronic antenna system for lasers
First Claim
1. An opto-electronic antenna system for transmitting and/or receiving laser radiation comprising:
- a plurality of stationary antennas disposed on a prescribed geometrical surface, the optical axis of each antenna being disposed at a solid angle with respect to the optical axes of the other antennas and intercepting a single base point; and
means for effecting cyclical scanning of said plurality of antennas,wherein said geometrical surface is that of a plurality of spherical sections having different diameters, which are subdivided along the same longitudinal and latitudinal lines, at the intersection of which said antennas are disposed.
0 Assignments
0 Petitions
Accused Products
Abstract
An opto-electronic antenna system includes a plurality of transmitting/receiving antennas disposed over a prescribed geometrical surface such as a sphere. To the antennas are optically coupled transmitter/receiver units such as photo-detectors or laser transmitters. The antenna units are scanned electronically according to their position on the geometrical surface by supplying to the individual units, signals differing in phase in accordance with the position of the antenna with which the units are associated both in the vertical and horizontal directions. An evaluation circuit is associated with each unit for determining the azimuth and elevation directions of received radiation.
36 Citations
10 Claims
-
1. An opto-electronic antenna system for transmitting and/or receiving laser radiation comprising:
-
a plurality of stationary antennas disposed on a prescribed geometrical surface, the optical axis of each antenna being disposed at a solid angle with respect to the optical axes of the other antennas and intercepting a single base point; and means for effecting cyclical scanning of said plurality of antennas, wherein said geometrical surface is that of a plurality of spherical sections having different diameters, which are subdivided along the same longitudinal and latitudinal lines, at the intersection of which said antennas are disposed.
-
-
2. An opto-electronic antenna system for transmitting and/or receiving laser radiation comprising:
-
a plurality of stationary antennas disposed on a prescribed geometrical surface, the optical axis of each antenna being disposed at a solid angle with respect to the optical axes of the other antennas and intercepting a single base point; and means for effecting cyclical scanning of said plurality of antennas, wherein each antenna has an aperture diameter which differs from the aperture diameters of the other antennas and varies in accordance with the latitudinal position of the respective antenna on said geometrical surface.
-
-
3. An opto-electronic antenna system for transmitting and/or receiving laser radiation comprising:
-
a plurality of stationary antennas disposed on a prescribed geometrical surface, the optical axis of each antenna being disposed at a solid angle with respect to the optical axes of the other antennas and intercepting a single base point; and means for effecting cyclical scanning of said plurality of antennas, wherein said antennas are disposed over said geometrical surface, so as to define a plurality of adjacent antenna apertures in both vertical and horizontal directions, thereby subtending adjacent solid angle, and wherein said means for effecting the cyclical scanning of said plurality of antennas includes first means, coupled to each of said antennas, for generating a signal indicative of the aperture position of each antenna on said geometrical surface, the phase of which differs from the phase of signals indicative of the aperture positions of adjacent antennas in accordance with the position of said aperture on said surface. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10)
-
Specification