Dual polarized notch antenna having low profile stripline feed
AssigneeMassachusetts Institute of Technology
InventorGlenn A. Brigham
Life of this patent
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Abstract
In this novel geometry, the 3D radiator unit cell has been designed with flat sided unit cells. Each 3D radiator unit cell incorporates a curf border of sacrificial material. This border permits independent sub-array size and shape. It also allows a gap between sub-arrays while retaining contiguous unit cell spacing giving flexibility to array size, shape and line replaceable unit capabilities.
Claims20
A 3D radiator unit cell for use in an antenna array, wherein the 3D radiator unit cell has a rectangular shape with two first sides and two second sides and comprises:
- a first notch antenna comprising a first energized prong and a first grounded prong, separated by a first gap;
- a second notch antenna comprising a second energized prong and a second grounded prong, separated by a second gap;
- wherein a longer dimension of the prongs of the first notch antenna extends in an X direction and is orthogonal to a longer dimension of the prongs of the second notch antenna, which extends in a Y-direction;
- wherein the longer dimension of the prongs of the first notch is parallel to the first sides and the longer dimension of the prongs of the second notch antenna is parallel to the second sides.
An antenna array, comprising a plurality of the 3D radiator unit cells, wherein the plurality of 3D radiator unit cells are integrated into a single block of conductive material, and each 3D radiator unit cell has a rectangular shape with two first sides and two second sides, and comprises:
- a first notch antenna comprising a first energized prong and a first grounded prong, separated by a first gap;
- a second notch antenna comprising a second energized prong and a second grounded prong, separated by a second gap;
- wherein a longer dimension of the prongs of the first notch antenna extends in an X direction and is orthogonal to a longer dimension of the prongs of the second notch antenna, which extends in a Y-direction;
- and
- wherein the longer dimension of the prongs of the first notch is parallel to the first sides and the longer dimension of the prongs of the second notch antenna is parallel to the second sides.
An antenna array, comprising a plurality of antenna sub-arrays, wherein each antenna sub-array has a rectangular shape and comprises a plurality of the 3D radiator unit cells, wherein the plurality of 3D radiator unit cells are integrated into a single block of conductive material, and each 3D radiator unit cell has a rectangular shape with two first sides and two second sides, and comprises:
- a first notch antenna comprising a first energized prong and a first grounded prong, separated by a first gap;
- a second notch antenna comprising a second energized prong and a second grounded prong, separated by a second gap;
- wherein a longer dimension of the prongs of the first notch antenna extends in an X direction and is orthogonal to a longer dimension of the prongs of the second notch antenna, which extends in a Y-direction;
- and
- wherein the longer dimension of the prongs of the first notch is parallel to the first sides and the longer dimension of the prongs of the second notch antenna is parallel to the second sides;
- and wherein the antenna sub-arrays are disposed adjacent to one another in the antenna array;
- and wherein a space exists between each set of adjacent antenna sub-arrays.
Dependencies are inferred from the claim text.