ANTENNA SYSTEM FACILITATING REDUCTION OF INTERFERING SIGNALS
First Claim
1. An antenna system comprising:
- a surface scattering antenna including;
an electromagnetic waveguide structure; and
a plurality of electromagnetic wave scattering elements distributed along the waveguide structure and operable in combination to produce a controllable radiation pattern;
a gain definition circuit configured to define a radiation pattern configured to receive a possible interfering signal transmitted within an operating frequency band of an associated antenna, the associated antenna having field of view that includes a desired field of view and an undesired field of view, and the defined antenna radiation pattern having a field of view covering at least a portion of the undesired field of view of the associated antenna;
an antenna controller configured to establish the defined radiation pattern in the surface scattering antenna by activating a respective electromagnetic response of selected electromagnetic wave scattering elements of the plurality of electromagnetic wave scattering elements; and
a correction circuit configured to reduce an influence of the received possible interfering signal in a contemporaneously received signal by the associated antenna.
1 Assignment
0 Petitions
Accused Products
Abstract
Described embodiments include an antenna system and method. The antenna system includes a surface scattering antenna that has an electromagnetic waveguide structure and a plurality of electromagnetic wave scattering elements. The plurality of electromagnetic wave scattering elements are distributed along the waveguide structure, have a respective activatable electromagnetic response to a guided propagating electromagnetic wave, and produce a controllable radiation pattern. A gain definition circuit defines a radiation pattern configured to acquire a possible interfering signal. The defined antenna radiation pattern has a field of view covering at least a portion of an undesired field of view of an associated antenna. An antenna controller establishes the defined radiation pattern in the surface scattering antenna by activating the respective electromagnetic response of selected electromagnetic wave scattering elements. A correction circuit reduces an influence of the received possible interfering signal in a contemporaneously received signal by the associated antenna.
-
Citations
67 Claims
-
1. An antenna system comprising:
-
a surface scattering antenna including; an electromagnetic waveguide structure; and a plurality of electromagnetic wave scattering elements distributed along the waveguide structure and operable in combination to produce a controllable radiation pattern; a gain definition circuit configured to define a radiation pattern configured to receive a possible interfering signal transmitted within an operating frequency band of an associated antenna, the associated antenna having field of view that includes a desired field of view and an undesired field of view, and the defined antenna radiation pattern having a field of view covering at least a portion of the undesired field of view of the associated antenna; an antenna controller configured to establish the defined radiation pattern in the surface scattering antenna by activating a respective electromagnetic response of selected electromagnetic wave scattering elements of the plurality of electromagnetic wave scattering elements; and a correction circuit configured to reduce an influence of the received possible interfering signal in a contemporaneously received signal by the associated antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 18, 21, 22, 23, 24, 28, 29, 31, 32, 33, 34, 36, 37, 43, 45, 46, 47, 50, 51, 52, 57, 61, 63, 64, 65)
-
-
9. (canceled)
-
19. (canceled)
-
20. (canceled)
-
25-27. -27. (canceled)
-
30. (canceled)
-
35. (canceled)
-
38-42. -42. (canceled)
-
44. (canceled)
-
48. (canceled)
-
49. (canceled)
-
53-56. -56. (canceled)
-
58-60. -60. (canceled)
-
62. A method comprising:
-
defining an antenna radiation pattern configured to receive in a surface scattering antenna a possible interfering signal transmitted within an operating frequency band of an associated antenna, the associated antenna having field of view that includes a desired field of view and an undesired field of view, and the surface scattering antenna having a field of view covering at least a portion of the undesired field of view; establishing the defined radiation pattern in the surface scattering antenna by respectively activating an electromagnetic response of selected electromagnetic wave scattering elements of the plurality of electromagnetic wave scattering elements; receiving the possible interfering signal with the defined antenna radiation pattern established in the surface scattering antenna; and reducing an influence of the possible interfering signal in a contemporaneously received signal by the associated antenna,
-
-
66. A system comprising:
-
means for defining an antenna radiation pattern configured to receive in a surface scattering antenna a possible interfering signal transmitted within an operating frequency band of an associated antenna, the associated antenna having field of view that includes a desired field of view and an undesired field of view, and the surface scattering antenna having a field of view covering at least a portion of the undesired field of view; means for establishing the defined radiation pattern in the surface scattering antenna by respectively activating an electromagnetic response of selected electromagnetic wave scattering elements of the plurality of electromagnetic wave scattering elements; means for receiving the possible interfering signal with the defined antenna radiation pattern established in the surface scattering antenna; and means for reducing an influence of the possible interfering signal in a signal contemporaneously received by the associated antenna. - View Dependent Claims (67)
-
Specification