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US 10,594,042 B2Granted
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.
Claims20
An antenna comprising:
- a single reflector having a shaped surface, wherein the shaped surface comprises a plurality of ripples between a center and an edge of the single reflector, and at least one of the plurality of ripples includes a first portion and a second portion on opposing sides of a parabolic surface defined by the plurality of ripples;
- a feed comprising a septum polarizer coupled between a common waveguide and a first waveguide and a second waveguide of a pair of waveguides;
- and
- a support member to orient the feed for direct illumination of the shaped surface of the single reflector, the support member comprising a housing containing the pair of waveguides and the septum polarizer.
1 more element
Dependencies are inferred from the claim text.