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US 2020/0274247 A1Published application
Dual-polarization rippled reflector antenna
AssigneeViaSat, Inc.
InventorsDonald L. Runyon, Anders Jensen
Life of this patent
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Abstract
An antenna may include a reflector and a multi-band feed assembly. A support member may be coupled to the multi-band feed assembly to orient the multi-band feed assembly for direct illumination of the reflector. The multi-band feed assembly may include first and second feeds, each having a respective septum polarizer coupled between a respective common waveguide and a respective pair of waveguides. A housing of the support member may contain the respective septum polarizers and the respective pairs of waveguides.
Claims25
(canceled)
An antenna comprising:
- a single reflector having a shaped surface, wherein the shaped surface comprises a plurality of ripples extending from a center of the single reflector to a first distance from the center, and wherein maximum deviations of respective ripples of the plurality of ripples from a parabolic surface between the center and an edge of the single reflector reduce with increased distance of the respective ripples from the center;
- and
- a feed illuminated by the single reflector, the feed comprising a polarizer coupled between a common waveguide and a first waveguide and a second waveguide of a pair of waveguides.
Dependencies are inferred from the claim text.