AESA compound curred dome phased array antenna

Patent metadata

Field	Value
Publication number	US-11050152-B2
Application number	US-201916268549-A
Country	US
Kind code	B2
Filing date	Feb 6, 2019
Priority date	Feb 9, 2018
Publication date	Jun 29, 2021
Grant date	Jun 29, 2021

Abstract

A phased array antenna is provided. The phased array antenna includes a dome shaped substrate. The phased array antenna further includes a plurality of antenna elements disposed on the substrate.

First claim

What is claimed is:

1. A phased array antenna defining a circumferential direction and a radial direction, the phased array antenna comprising:
a dome-shaped substrate having an inner surface and an outer surface; and
a plurality of antenna elements disposed on the inner surface of the dome-shaped substrate such that the plurality of antenna elements are spaced apart from one another along the circumferential direction.

2. The phased array antenna of claim 1 , wherein:
radio frequency (RF) signals emitted via the plurality of antenna elements propagate through the dome-shaped substrate; and
RF signals received via the plurality of antenna elements propagate through the dome-shaped substrate.

3. The phased array antenna of claim 1 , wherein the plurality of antenna elements disposed on the inner surface are positioned within a cavity defined by the dome-shaped substrate.

4. The phased array antenna of claim 1 , wherein each antenna element of the plurality of antenna elements defines one or more slots.

5. The phased array antenna of claim 4 , 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.

6. The phased array antenna of claim 5 , 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.

7. The phased array antenna of claim 5 , 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.

8. The phased array antenna of claim 5 , wherein a radiation pattern associated with the first antenna element is different than a radiation pattern associated with the second antenna element.

9. 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 RF signal received via the plurality of antenna elements is between 100 MHz and 100 gigahertz GHz.

10. The phased array antenna of claim 1 , wherein the plurality of antenna elements are equally spaced from one another along the circumferential direction.

11. The phased array antenna of claim 1 , wherein the plurality of antenna elements are the same size as one another.

12. The phased array antenna of claim 1 , wherein the dome-shape substrate comprises a material having a dielectric constant ranging from 2 to 10.

13. The phased array antenna of claim 1 , wherein the plurality of antenna elements comprise:
a first antenna element having a first gain in a first direction; and
a second antenna element having a second gain in the first direction, the second gain being different than the first gain.

Assignees

• Avx Corp

Inventors

• Smith David M

Classifications

• H01Q21/064

  using horn or slot aerials (slotted waveguides arrays H01Q21/005) · CPC title

• H01Q1/38

  formed by a conductive layer on an insulating support {(patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface  H01Q15/142)} · CPC title

• H01Q21/205

  providing an omnidirectional coverage (turnstile aerials H01Q21/26) · CPC title

• H01Q3/34 Primary

  by electrical means (active lenses or reflecting arrays H01Q3/46) · CPC title

• H01Q9/0407 Primary

  Substantially flat resonant element parallel to ground plane, e.g. patch antenna (dipole H01Q9/285; monopole H01Q9/40) · CPC title