Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
163 words
An antenna arrangement for directing a collimated beam of radio frequency energy, such arrangement comprising the combination of: a. beam forming means, including a feed horn and a curved polarized reflector disposed in a fixed spatial relationship one to the other, for forming a linearly polarized covergent beam of radio frequency energy; b. first beam directing means, including planar polarized reflector rotatably mounted in the path of the linearly polarized convergent beam, for changing the direction of the linearly polarized convergent beam of radio frequency energy in accordance with the position of the planar polarized reflector and for rotating the direction of polarization of the radio frequency energy in the linearly polarized covergent beam by substantially 90°; c. second beam directing means, including a constrained electromagnetic lens disposed in the path of the linearly polarized convergent beam from the first beam directing means, for simultaneously refracting and collimating the radio frequency energy in such beam to produce a collimated beam in free space.
Claim 2
Dependent Claim
163 words
An antenna arrangement for directing a collimated beam of radio frequency energy, such arrangement comprising the combination of: a. beam forming means, including a feed horn and a curved polarized reflector disposed in a fixed spatial relationship one to the other, for forming a linearly polarized covergent beam of radio frequency energy; b. first beam directing means, including planar polarized reflector rotatably mounted in the path of the linearly polarized convergent beam, for changing the direction of the linearly polarized convergent beam of radio frequency energy in accordance with the position of the planar polarized reflector and for rotating the direction of polarization of the radio frequency energy in the linearly polarized covergent beam by substantially 90°; c. second beam directing means, including a constrained electromagnetic lens disposed in the path of the linearly polarized convergent beam from the first beam directing means, for simultaneously refracting and collimating the radio frequency energy in such beam to produce a collimated beam in free space.
Claim 3
Dependent Claim
32 words
An antenna arrangement as in claim 1 wherein the centers of the first beam directing means and the constrained electromagnetic lens are substantially coincident and the feed horn is a monopulse feed.
Claim 4
Dependent Claim
131 words
An antenna arrangement as in claim 2 wherein the constrained electromagnetic lens comprises: a. a support structure having the shape of a hollow hemisphere; b. a first plurality of antenna elements disposed over the inner surface of the support structure in a coupling relationship with the radio frequency energy reflected from the frist beam deflecting means; c. a second like plurality of antenna elements disposed over the outer surface of the support structure to form, in conjunction with the individual antenna elements in the first plurality thereof, a third like plurality of pairs of antenna elements. d. means for interconnecting, through constrained paths, the antenna elements in each pair thereof, the electrical length of each one of such constrained paths being selected to direct and collimate the beam in free space.
Claim 5
Dependent Claim
25 words
The antenna arrangement claimed in claim 3 wherein the means for interconnecting the antenna elements in each pair thereof comprises a length of transmission line.
Claim 6
Dependent Claim
32 words
The antenna arrangement as in claim 4 wherein the means for interconnecting the antenna elements in each pair thereof comprises, in addition to a length of transmission line, a variable phase shifter.