Sparse trifilar array antenna
AssigneeLockheed Martin Corporation
InventorsLawrence K. Lam, Albert T. Ngo, Mohamed S. Mahmoud, Marc L. Peloquin
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Abstract
An array antenna is arranged in an innovative sparse trifilar configuration. The antenna elements forming the array antenna are arranged to form three non-linear arrays. The antenna elements are approximately aligned to a triangular lattice structure with the antenna elements of each non-linear array occupying adjacent lattice positions. The three non-linear arrays are separated from each other by vacant lattice positions, thereby making the configuration a sparse array.
Claims23
A trifilar array antenna, comprising a plurality of antenna elements arranged in three non-linear arrays,
- wherein the plurality of antenna elements are aligned to a lattice structure with the antenna elements of each non-linear array arranged in adjacent lattice positions, and
- wherein the three non-linear arrays are separated by vacant lattice positions.
An array antenna, comprising:
- a first plurality of antenna elements arranged in a first group of three non-linear arrays;
- and
- a second plurality of antenna elements arranged in a second group of three-non-linear arrays,
- wherein the first and second pluralities of antenna elements are aligned to a lattice structure with the antenna elements of each non-linear array arranged in adjacent lattice positions, and
- wherein the antenna elements of the first group of non-linear arrays occupy lattice positions between the antenna elements of the second group of non-linear arrays.
Dependencies are inferred from the claim text.