AESA radial geometry phased array antenna
A phased array antenna is provided. The phased array antenna includes a tube shaped substrate. The phased array antenna further includes a plurality of antenna elements disposed on the substrate.
1. A phased array antenna defining a circumferential direction and a radial direction, the phased array antenna comprising:
a tube-shaped substrate having an inner surface and an outer surface, the tube-shaped substrate defining a cavity; and
a plurality of antenna elements, each of the plurality of antenna elements disposed on the inner surface of the tube-shaped substrate such that the plurality of antenna elements are positioned within the cavity defined by the tube-shaped substrate.
2. The phased array antenna of claim 1 , wherein each of the plurality antenna elements has a different shape.
3. The phased array antenna of claim 1 , wherein:
radio frequency (RF) signals emitted via the plurality of antenna elements propagate through the tube-shaped substrate; and
RF signals received via the plurality of antenna elements propagate through the tube-shaped substrate.
4. The phased array antenna of claim 1 , wherein one or more of the plurality of antenna elements comprise a patch antenna.
5. The phased array antenna of claim 1 , wherein the plurality of antenna elements are equally spaced from one another along the circumferential direction.
6. The phased array antenna of claim 1 , wherein the plurality of antenna elements are the same size as one another.
7. The phased array antenna of claim 1 , wherein each antenna element of the plurality of antenna elements defines one or more slots.
8. The phased array antenna of claim 7 , wherein the one or more slots defined by a first antenna element of the plurality of antenna elements are different than the one or more slots defined by a second antenna element of the plurality of antenna elements.
9. The phased array antenna of claim 8 , wherein a size of the one or more slots defined by the first antenna element is different than a size of the one or more slots defined by the second antenna element.
10. The phased array antenna of claim 8 , wherein a shape of the one or more slots defined by the first antenna element is different than a shape of the one or more slots defined by, the second antenna element.
11. The phased array antenna of claim 8 , wherein a radiation pattern associated with the first antenna element is different than a radiation pattern associated with the second antenna element.
12. The phased array antenna of claim 1 , wherein:
a frequency of a radio frequency (RF) signal emitted via the plurality of antenna elements is between 100 megahertz (MHz) and 100 gigahertz (GHz); and
a frequency of a RE signal received via the plurality of antenna elements is between 100 MHz and 100 gigahertz GHz.
13. A phased array antenna defining a radial direction and a circumferential direction, the phased array antenna comprising:
a tube-shaped substrate, the tube-shaped substrate defining a cavity; and
a plurality of antenna elements, each of the plurality of antenna elements disposed on an inner surface of the tube-shaped substrate such that the plurality of antenna elements are positioned within the cavity defined by the tube-shaped substrate.
14. The phased array antenna of claim 13 , wherein each antenna element of the plurality of antenna elements defines one or more slots.
15. The phased array antenna of claim 14 , wherein the one or more slots defined by a first antenna element of the plurality of antenna elements are different than the one or more slots defined by a second antenna element of the plurality of antenna elements.
16. The phased array antenna of claim 13 , wherein:
radio frequency (RF) signals emitted via the plurality of antenna elements propagate through the tube-shaped substrate; and
RF signals received via the plurality of antenna elements propagate through the tube-shaped substrate.