Broadband patch antenna and associated methods

• US 9,748,656 B2
• Filed: 12/13/2013
• Issued: 08/29/2017
• Est. Priority Date: 12/13/2013
• Status: Active Grant

• Current Assignee: Harris Corporation (L3Harris Technologies, Inc.)
• Original Assignee: Harris Corporation (L3Harris Technologies, Inc.)
• Inventors: Parsche, Francis Eugene
• Primary Examiner(s): Levi, Dameon E
• Assistant Examiner(s): Davis, Walter
• Application Number:
  US14/105,454
• Publication Number:
  US 20150171520A1
• Time in Patent Office: 1,355 Days
• Field of Search: 343795
• CPC Class Codes: H01Q 9/0414 in a stacked or folded configuration
• CPC Class Codes: H01Q 9/0471 Non-planar, stepped or wedge-shaped patch
• CPC Class Codes: H01Q 9/065 Microstrip dipole antennas patch antenna H01Q9/0407
• CPC Class Codes: Y10T 29/49016 Antenna or wave energy "plumbing" making

Abstract

The patch antenna includes an electrically conductive patch carried by a dielectric substrate and having a planar shape and a feed point defined therein. A feed conductor is coupled to the feed point of the electrically conductive patch, and a plurality of electrically conductive wings extend upwardly from a periphery of the electrically conductive patch. A method aspect may include adjusting at least one property (e.g. frequency) of the antenna by angling at least one of the plurality of electrically conductive wings outwardly from the electrically conductive patch.

Claims

1. A patch antenna comprising:

a substrate;

an electrically conductive patch carried by said substrate and having a planar shape and a feed point defined therein;

a feed conductor coupled to the feed point of said electrically conductive patch; and

a plurality of electrically conductive wings directly electrically connected to a periphery of said electrically conductive patch and extending upwardly therefrom and away from said substrate, each of said plurality of electrically conductive wings having a triangular shape and configured to bend along the periphery of said electrically conductive patch to adjust a frequency of a respective edge of the electrically conductive patch.

2. The patch antenna according to claim 1 wherein the periphery of said electrically conductive patch has a polygonal shape defining a plurality of linear segments and associated vertices.

3. The patch antenna according to claim 2 wherein said plurality of electrically conductive wings comprises a respective electrically conductive wing extending upwardly from each linear segment.

4. The patch antenna according to claim 2 wherein each of said plurality of electrically conductive wings comprises a base extending along a respective linear segment, and an apex opposite the base.

5. The patch antenna according to claim 2 wherein each of said plurality of electrically conductive wings comprises first and second right angle triangular shaped portions each with a leg extending upward from a respective vertex and a hypotenuse extending to a common medial position along a respective linear segment.

6. The patch antenna according to claim 2 wherein the polygonal shape comprises a rectangular shape.

7. The patch antenna according to claim 1 wherein at least one of said plurality of electrically conductive wings is angled outwardly from said electrically conductive patch.

8. The patch antenna according to claim 1 further comprising a ground plane and a dielectric layer between said substrate and said electrically conductive patch.

9. A broadband patch antenna comprising:

a substrate;

a ground plane carried by said substrate;

a dielectric layer carried by said ground plane;

an electrically conductive patch carried by said dielectric layer and having a planar shape and a feed point defined therein, said electrically conductive patch having a polygonal shape defining a plurality of linear segments and associated vertices;

a feed conductor coupled to the feed point of said electrically conductive patch; and

a plurality of electrically conductive wings directly electrically connected to a periphery of said electrically conductive patch and each extending upwardly from a respective linear segment and away from said substrate, each of said plurality of electrically conductive wings having a triangular shape and configured to bend along the respective linear segment to adjust a frequency of a respective edge of the electrically conductive patch.

10. The broadband patch antenna according to claim 9 wherein each of said plurality of electrically conductive wings comprises a base extending along the respective linear segment, and an apex opposite the base.

11. The broadband patch antenna according to claim 9 wherein each of said plurality of electrically conductive wings comprises first and second right angle triangular shaped portions each with a leg extending upward from a respective vertex and a hypotenuse extending to a common medial position along the respective linear segment.

12. The broadband patch antenna according to claim 9 wherein at least one of said plurality of electrically conductive wings is angled outwardly from said electrically conductive patch.

13. The broadband patch antenna according to claim 9 wherein the polygonal shape comprises at least one of a square shape and a rectangular shape.

14. A method for making a patch antenna comprising:

forming an electrically conductive patch adjacent a substrate and having a planar shape and a feed point defined therein;

coupling a feed conductor to the feed point of the electrically conductive patch; and

forming a plurality of electrically conductive wings directly electrically connected to a periphery of said electrically conductive patch and extending upwardly therefrom and away from the substrate, each of the plurality of electrically conductive wings having a triangular shape and configured to bend along the periphery of the electrically conductive patch to adjust a frequency of a respective edge of the electrically conductive patch.

15. The method according to claim 14 wherein the periphery of the electrically conductive base has a polygonal shape defining a plurality of linear segments and associated vertices;

and wherein forming the plurality of electrically conductive wings comprises forming a respective electrically conductive wing extending upwardly from each linear segment.

16. The method according to claim 15 further comprising adjusting at least one property of the antenna by angling at least one of the plurality of electrically conductive wings outwardly from the electrically conductive patch.

17. The method according to claim 15 further comprising forming a ground plane and a dielectric layer between the substrate and the electrically conductive patch.

18. The method according to claim 14 further comprising differently orienting the electrically conductive wings to enable rotational polarization radiation.

19. The method according to claim 18 wherein the periphery of the electrically conductive patch defines radiating edges having unequal resonant frequencies.