Satellite ground station antenna with wide field of view and nulling pattern using surface waveguide antennas
AssigneeMediaur Technologies, Inc.
InventorSteve Waltman
Life of this patent
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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.
Claims19
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.
A satellite ground station antenna comprising:
- 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.
A satellite ground station antenna comprising:
- 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.
Dependencies are inferred from the claim text.