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US 11,688,938 B2Granted
Antenna array with independently rotated radiating elements
AssigneeViaSat, Inc.
InventorFrederic Bongard
Life of this patent
Estimating the term…
Abstract
An antenna array that can include a plurality of antenna cells positioned in a global coordinate system of the antenna array. Each of the plurality of antenna cells has a respective local coordinate system and can include a radiating element having a predetermined angle of rotation defined in the global coordinate system and an antenna port coupled to the radiating element, the antenna port being positioned at a particular set of coordinates in the respective local coordinate system. The particular set of coordinates of the antenna port of each of the plurality of antenna cells can be the same.
Claims17
An antenna apparatus comprising:
- a plurality of antenna elements arranged at a first level of a stacked structure;
- a plurality of integrated circuit (IC) chips, each comprising at least one phase shifter for beam steering;
- a plurality of beam forming network (BFN) cells, arranged at a second level of the stacked structure, each of the plurality of BFN cells positioned within a global coordinate system of the stacked structure and each including one of the IC chips, and a plurality of outputs;
- first and second BFN cells, among the plurality of BFN cells, wherein the first BFN cell has the same geometric shape as the second BFN cell and the second BFN cell is rotated in the global coordinate system relative to the first BFN cell;
- a plurality of vias each coupling one of the plurality of outputs with one of the plurality of antenna elements;
- and
- a combiner/divider network coupled to each of the BFN cells.
4 more elements
Dependencies are inferred from the claim text.