Dipole structures and antennae
AssigneeBAE SYSTEMS plc
InventorMark Christopher Nguyen
Life of this patent
Estimating the term…
Abstract
In some examples, a dual polarized dipole structure comprises a first dipole arm comprising a first dipole and a second dipole arm comprising a second dipole, the first and second dipoles being substantially planar and being joined to each other at a feed point of the dipole structure disposed at the centre of the first and second arms, whereby to form a dual polarized dipole radiating element for an antenna structure, wherein the first dipole arm and the second dipole arm are so arranged, with respect to a square unit cell, such that the first dipole and the second dipole are orthogonal to one another and so arranged as to lie on respective diagonals of the square unit cell.
Claims18
A dual polarized dipole structure, comprising:
- a first dipole arm comprising a first dipole, and a second dipole arm comprising a second dipole, the first and second dipoles being substantially planar and being joined to each other at a feed point of the dipole structure, the feedpoint disposed at a center of the first and second dipole arms, whereby to form a dual polarized dipole radiating element for an antenna structure;
- wherein the first dipole arm and the second dipole arm are so arranged, with respect to a square unit cell, such that the first dipole and the second dipole are orthogonal to one another and so arranged as to lie on respective diagonals of the square unit cell,
- wherein the square unit cell has side p, and wherein the first and second dipoles extend diagonally across the square unit cell such that each of the first and second dipole arms have a length of √2p.
An antenna array comprising multiple unit cells, each unit cell defining a square and comprising a dual polarized dipole structure, each dual polarized dipole structure defining a radiating element of the antenna array, each dual polarized dipole structure comprising:
- a first dipole arm comprising a first dipole, and a second dipole arm comprising a second dipole, the first and second dipoles being substantially planar and being joined to each other at a feed point of the dipole structure, the feedpoint disposed at a center of the first and second dipole arms, whereby to form a dual polarized dipole radiating element for an antenna structure;
- wherein the first dipole arm and the second dipole arm are so arranged, with respect to a square unit cell, such that the first dipole and the second dipole are orthogonal to one another and so arranged as to lie on respective diagonals of the square unit cell,
- wherein each of the first and second dipole arms are coupled to three dipole arms of their respective nearest neighbors.
A dual polarized dipole structure, comprising:
- a first dipole arm comprising a first dipole;
- and
- a second dipole arm comprising a second dipole;
- wherein the first and second dipoles are substantially planar and joined to each other at a feed point of the dipole structure, the feedpoint disposed at a center of the first and second dipole arms;
- wherein the first dipole arm and the second dipole arm are so arranged, with respect to a square unit cell, such that the first dipole and the second dipole are orthogonal to one another and so arranged as to lie on respective diagonals of the square unit cell;
- wherein the square unit cell has side p, and wherein the first and second dipoles extend diagonally across the square unit cell such that each of the first and second dipole arms have a length of √2p;
- and
- wherein terminal portions of the first and second dipole arms, distal the feed point, are truncated, whereby to form triangular or cut-out end portions for the first and second dipoles.
Dependencies are inferred from the claim text.