Tiling system and method for an array antenna

Patent metadata

Field	Value
Publication number	US-10038252-B2
Application number	US-201514832908-A
Country	US
Kind code	B2
Filing date	Aug 21, 2015
Priority date	Jun 6, 2014
Publication date	Jul 31, 2018
Grant date	Jul 31, 2018

Abstract

The system can include and the method can provide a first printed circuit board antenna tile. The first printed circuit board antenna tile comprises a repeating pattern of antenna element units. The antenna can also include and the method can also provide a second first printed circuit board antenna tile comprising the repeating pattern. The first printed circuit board antenna tile and the second first printed circuit board antenna tile can be attached such that the antenna elements maintain the same spacing in an X-Y plane associated with the repeating pattern across a boundary the first printed circuit board antenna tile and the second first printed circuit board antenna tile.

First claim

What is claimed is:

1. An antenna, comprising:
a plurality of antenna tiles comprising a repeating pattern of antenna element units, each of the antenna element units comprising at least three antenna elements, wherein the at least two of the antenna tiles are joined to each other at a serpentine edge configured so that the antenna elements in each antenna element unit are not divided at the serpentine edge, wherein the repeating pattern is one of a triangular pattern and a diamond pattern, wherein one antenna element in a first set of the antenna element units is disposed in a first row and two antenna elements in the first set of the antenna element units are disposed in a second row, wherein one antenna element in a second set of the antenna element units is disposed in the second row and two antenna elements in the second set of the antenna element units are disposed in the first row.

2. The antenna of claim 1 , wherein the serpentine edge has at least one of a saw tooth and sine wave shape, wherein the antenna tiles each have a different shape, antenna element count, or contour.

3. The antenna of claim 1 , wherein the plurality of antenna tiles have a number of the antenna elements disposed in a co-planar top surface of the antenna.

4. The antenna of claim 1 , wherein the plurality of antenna tiles are attached to a mechanical receptacle providing a connection between the plurality of antenna tiles.

5. The antenna of claim 1 , wherein the plurality of antenna tiles are attached via an elastomeric zebra strip providing a connection between the plurality of antenna tiles.

6. The antenna of claim 1 , wherein the plurality of antenna tiles are each attached to a mounting panel and wherein a signal bridge is disposed within a ground bridge, wherein the signal bridge and the ground bridge are couples to respective conductors of the plurality of antenna tiles and the mounting panel.

7. The antenna of claim 1 , wherein the antenna is an electronically scanned array antenna.

8. The antenna of claim 1 , wherein the serpentine edge has at least one of a zigzag pattern, a serrated pattern, or a stepped pattern.

9. The antenna of claim 1 , further comprising a support medium to which the at least two of the antenna tiles are attached.

10. The antenna of claim 1 , wherein the antenna elements are configured to be steered based on a received signal.

11. The antenna of claim 1 , wherein each antenna element is connected to an active transmit/receive module radio frequency device.

12. The antenna of claim 1 , wherein a first antenna tile of the at least two of the antenna tiles is not identical in any of element count, size, or perimeter configuration to a second antenna tile of the at least two antenna tiles.

13. The antenna of claim 1 , wherein the first set of the antenna element units and the second set of the antenna element units alternate across the repeating pattern.

14. The antenna of claim 1 , wherein edges of each of the at least two of the antenna tiles joined at the serpentine edge mirror each other.

15. The antenna of claim 1 , wherein each antenna tile includes a printed circuit board.

16. The antenna of claim 1 , wherein the antenna is a phased array antenna.

17. The antenna of claim 1 , wherein plurality of antenna tiles are cut using a precision saw.

18. The antenna of claim 1 , wherein the antenna is formed using n-omino subarraying to reduce the effects of parasitic grating lobes.

19. A method of making a printed circuit board antenna array, the method comprising:
providing a first printed circuit board antenna tile, wherein the first printed circuit board antenna tile comprises a repeating pattern of antenna element units, wherein each of the antenna element units comprise at least three antenna elements, wherein the repeating pattern is one of a triangular pattern and a diamond pattern, wherein one antenna element in a first set of the antenna element units is disposed in a first row and two antenna elements in the first set of the antenna element units is disposed in a second row, wherein one antenna element in a second set of the antenna element units is disposed in the second row and two antenna elements in the second set of the antenna element units is disposed in the first row;
providing a second printed circuit board antenna tile comprising the repeating pattern; and
attaching the first printed circuit board antenna tile and the second printed circuit board antenna tile at a serpentine edge such that the antenna elements maintain the same spacing in an X-Y plane associated with the repeating pattern across a boundary of the first printed circuit board antenna tile and the second printed circuit board antenna tile, and such that the antenna elements in each of the first and second printed circuit board antenna tiles are not divided at the serpentine edge.

20. The method of claim 19 , wherein the boundary has one of a saw tooth shape and a sine wave shape.

Assignees

• West James B
• Livadaru Matilda G
• Olson Christopher G
• Rockwell Collins Inc

Inventors

• West James B
• Livadaru Matilda G
• Olson Christopher G

Classifications

• H01Q21/0087

  Apparatus or processes specially adapted for manufacturing antenna arrays (manufacturing waveguides H01P11/00) · CPC title

• H01Q3/46

  Active lenses or reflecting arrays · CPC title

• H01Q21/065 Primary

  Patch antenna array · CPC title

• H01Q21/061 Primary

  Two dimensional planar arrays · CPC title

• H01Q21/0093

  Monolithic arrays · CPC title