Multi-band wide-angle scan phased array antenna with novel grating lobe suppression
AssigneeRockwell Collins, Inc.
InventorsMohamed Wajih A. Elsallal, James B. West
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Abstract
A multi-band wide-angle scan phased array antenna with novel grating lobe suppression has a first plurality of radiation elements for radiating a first frequency arranged in a rectangular configuration. A second plurality of radiation elements for radiating second frequency are arranged in a rectangular frame around the first radiation elements. A third plurality of radiation elements for radiating third frequency are arranged in a rectangular frame around the second radiation elements. The radiation elements are apertures that are λ/2 of an operating frequency in size. The radiation elements may also be arranged in square, circular, or elliptical configurations.
Claims20
A multi-band wide-angle scan phased array antenna with novel grating lobe suppression comprising:
- a first band antenna for radiating at a first frequency and comprising a first plurality of radiation elements;
- a second band antenna for radiating at a second frequency and comprising a second plurality of radiation elements around the first band antenna;
- and
- a third band antenna for radiating at a third frequency and comprising a third plurality of radiation elements around the second band antenna.
A multi-band phased array antenna having novel grating lobe suppression comprising:
- a first plurality of radiation elements for a radiating at a first frequency and arranged in a square configuration;
- a second plurality of radiation elements for radiating a second frequency and arranged in a square frame around the first plurality of radiation elements;
- and
- a third plurality of radiation elements for radiating a third frequency and arranged in a square frame around the second plurality of radiation elements.
Dependencies are inferred from the claim text.