Satellite ground station antenna with wide field of view and nulling pattern using surface waveguide antennas
First Claim
1. A satellite wound station antenna comprising:
- a parabolic reflector having a size corresponding to a reflector beam with an angular half width larger than the spacing between neighboring interfering satellites;
a feed comprising at least two dielectric rod-based surface waveguides coupled to the parabolic reflector configured to have a high sensitivity for a target satellite within the angular half-width of the reflector beam and a low sensitivity for neighboring interfering satellites within the angular half-width of the reflector beam.
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Accused Products
Abstract
The present invention is applicable to satellite ground station antennas having a wide field of view in comparison to the satellites with which the antenna connects. One embodiment includes a parabolic reflector having a size that corresponds to a beam with an angular half-width larger than the spacing between neighboring interfering satellites. It also has a feed comprising at least two dielectric rod-based surface waveguides coupled to the parabolic reflector configured to have a high sensitivity for a target satellite within the angular half-width of the reflector beam and a low sensitivity for neighboring interfering satellites within the angular half-width of the reflector beam.
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Citations
19 Claims
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1. A satellite wound station antenna comprising:
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a parabolic reflector having a size corresponding to a reflector beam with an angular half width larger than the spacing between neighboring interfering satellites; a feed comprising at least two dielectric rod-based surface waveguides coupled to the parabolic reflector configured to have a high sensitivity for a target satellite within the angular half-width of the reflector beam and a low sensitivity for neighboring interfering satellites within the angular half-width of the reflector beam. - View Dependent Claims (2, 3, 4, 5)
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6. A satellite ground station antenna comprising:
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a first dielectric rod feed to produce a radiation pattern having a maximum corresponding to a target satellite; and a second dielectric tod feed to produce a radiation pattern having a minimum corresponding to a first target interferer of the target satellite. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14)
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15. A satellite ground station antenna comprising:
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a first dielectric rod feed directed at a target satellite; and a second dielectric rod feed directed at a target interferer of the target satellite; and a mixer coupled to the first and second dielectric rod feeds to combine signals from the first and second dielectric rod feeds so that a target satellite signal is maximized and a target interferer signal is minimized. - View Dependent Claims (16, 17, 18, 19)
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Specification