Multifunction additive antenna array

Patent metadata

Field	Value
Publication number	US-10680341-B1
Application number	US-201815867048-A
Country	US
Kind code	B1
Filing date	Jan 10, 2018
Priority date	Jan 10, 2018
Publication date	Jun 9, 2020
Grant date	Jun 9, 2020

Abstract

Optimizations are provided in the design and fabrication of a parabolic antenna reflector. In particular, a parabolic antenna reflector comprises an inner reflective face being formed in a parabolic shape and a first outer circumferential portion. The parabolic antenna also includes an outer face being formed in a different parabolic shape and a second circumferential portion. The first outer circumferential portion is coupled to the second outer circumferential portion to form an inner body between the inner reflective face and the outer face. This inner body includes a monopulse comparator waveguide. As a result, the monopulse comparator waveguide is embedded between the inner reflective face and the outer face. In some instances, this waveguide includes one or more bends. Additionally, in some instances, the parabolic antenna reflector is fabricated using additive manufacturing techniques such that the parabolic antenna reflector is a single printed unit.

First claim

What is claimed is:

1. A parabolic antenna reflector comprising:
an inner reflective face being formed in a parabolic shape, the inner reflective face including a first outer circumferential portion; and
an outer face being formed in a different parabolic shape, the outer face including a second outer circumferential portion,
wherein the first outer circumferential portion is coupled to the second outer circumferential portion to form an inner body between the inner reflective face and the outer face, and
wherein the inner body comprises a first monopulse comparator waveguide such that the first monopulse comparator waveguide is embedded inside the inner body between the inner reflective face and the outer face.

2. The parabolic antenna reflector of claim 1 , wherein the parabolic antenna reflector is a 9.5-inch antenna dish.

3. The parabolic antenna reflector of claim 1 , wherein the inner body further comprises a filtering hardware component such that the filtering hardware component is also embedded between the inner reflective face and the outer face.

4. The parabolic antenna reflector of claim 1 , wherein the inner body further comprises a second monopulse comparator waveguide, the first monopulse comparator waveguide and the second monopulse comparator waveguide forming a dual-axis monopulse comparator.

5. The parabolic antenna reflector of claim 1 , wherein the inner body further comprises an amplifier hardware component such that the amplifier hardware component is also embedded between the inner reflective face and the outer face.

6. The parabolic antenna reflector of claim 1 , wherein the inner body further comprises a filtering hardware component such that the filtering hardware component is also embedded between the inner reflective face and the outer face, and
wherein the inner body further comprises a second monopulse comparator waveguide, the first monopulse comparator waveguide and the second monopulse comparator waveguide forming a dual-axis monopulse comparator.

7. The parabolic antenna reflector of claim 1 , wherein the first monopulse comparator waveguide includes a first angle bend, the first angle bend being at an angle sufficient to cause the first monopulse comparator waveguide to be positioned between the inner reflective face having the parabolic shape and the outer face having the different parabolic shape, whereby the first angle bend causes the first monopulse comparator waveguide to have a non-planar geometric shape, and
wherein the inner body further comprises a second monopulse comparator waveguide, the second monopulse comparator waveguide being confined within the inner body at a position that is opposite to a position of the first monopulse comparator waveguide.

8. The parabolic antenna reflector of claim 1 , wherein the inner body further comprises a filtering hardware component such that the filtering hardware component is also embedded between the inner reflective face and the outer face, and
wherein the first monopulse comparator waveguide includes a first angle bend, the first angle bend being at an angle sufficient to cause the first monopulse comparator waveguide to be positioned between the inner reflective face having the parabolic shape and the outer face having the different parabolic shape, whereby the first angle bend causes the first monopulse comparator waveguide to have a non-planar geometric shape.

9. The parabolic antenna reflector of claim 1 , wherein the inner body further comprises a second monopulse comparator waveguide, the first monopulse comparator waveguide and the second monopulse comparator waveguide forming a dual-axis monopulse comparator, and
wherein the inner body further comprises an amplifier hardware component such that the amplifier hardware component is also embedded between the inner reflective face and the outer face.

10. The parabolic antenna reflector of claim 1 , wherein the parabolic antenna reflector is a 9.5-inch antenna dish and wherein the inner body further comprises a filtering hardware component such that the filtering hardware component is also embedded between the inner reflective face and the outer face.

11. A parabolic antenna reflector comprising:
an inner reflective face being formed in a parabolic shape, the inner reflective face including a first outer circumferential portion; and
an outer face being formed in a different parabolic shape, the outer face including a second outer circumferential portion,
wherein the first outer circumferential portion is coupled to the second outer circumferential portion to form an inner body between the inner reflective face and the outer face,
wherein the inner body comprises a first monopulse comparator waveguide such that the first monopulse comparator waveguide is embedded inside the inner body between the inner reflective face and the outer face, and
wherein the first monopulse comparator waveguide includes a first angle bend, the first angle bend being at an angle sufficient to cause the first monopulse comparator waveguide to be positioned between the inner reflective face having the parabolic shape and the outer face having the different parabolic shape, whereby the first angle bend causes the first monopulse comparator waveguide to have a non-planar geometric shape.

12. The parabolic antenna reflector of claim 11 , wherein the parabolic antenna reflector is a 9.5-inch antenna dish.

13. The parabolic antenna reflector of claim 11 , wherein the parabolic antenna reflector is a 9.5-inch antenna dish and wherein the inner body further comprises a filtering hardware component such that the filtering hardware component is also embedded between the inner reflective face and the outer face.

14. The parabolic antenna reflector of claim 11 , wherein the inner body further comprises a second monopulse comparator waveguide, the first monopulse comparator waveguide and the second monopulse comparator waveguide forming a dual-axis monopulse comparator.

15. The parabolic antenna reflector of claim 11 , wherein the inner body further comprises an amplifier hardware component such that the amplifier hardware component is also embedded between the inner reflective face and the outer face.

16. A parabolic antenna reflector comprising:
an inner reflective face being formed in a parabolic shape, the inner reflective face including a first outer circumferential portion; and
an outer face being formed in a different parabolic shape, the outer face including a second outer circumferential portion,
wherein the first outer circumferential portion is coupled to the second outer circumferential portion to form an inner body between the inner reflective face and the outer face,
wherein the inner body comprises a first monopulse comparator waveguide such that the first monopulse comparator waveguide is embedded inside the inner body between the inner reflective face and the outer face, and
wherein the inner body further comprises a second monopulse comparator waveguide, the second monopulse comparator waveguide being embedded within the inner body at a position that is opposite to a position of the first monopulse comparator waveguide.

17. The parabolic antenna reflector of claim 16 , wherein the first monopulse comparator waveguide and the second monopulse comparator waveguide form a dual-axis monopulse comparator.

18. The parabolic antenna reflector of claim 16 , wherein the inner body further comprises an amplifier hardware component such that the amplifier hardware component is also embedded between the inner reflective face and the out

Assignees

• L3 Tech Inc

Inventors

• Anderson Trevis D
• Campbell Jared E
• Hollenbeck Michael C
• Smith Robert H

Classifications

• H01Q19/132

  Horn reflector antennas; Off-set feeding · CPC title

• H01Q15/142

  using insulating material for supporting the reflecting surface · CPC title

• H01Q15/16 Primary

  curved in two dimensions [2D], e.g. paraboloidal · CPC title

• H01Q19/13

  the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination (H01Q19/15 takes precedence) · CPC title

• H01Q15/14

  Reflecting surfaces; Equivalent structures {(electromagnetic shields H01Q1/526)} · CPC title