Antenna construction

• US 20050219140A1
• Filed: 12/17/2004
• Published: 10/06/2005
• Est. Priority Date: 04/01/2004
• Status: Abandoned Application

• Current Assignee: Stella Doradus Waterford Limited
• Original Assignee: Stella Doradus Waterford Limited
• Inventors: Browne, James, Browne, Edwina, Thompson, Naomi
• Application Number:
  US11/015,584
• Publication Number:
  US 20050219140A1
• Time in Patent Office: Days
• US Class Current: 343/814
• CPC Class Codes: H01Q 19/108 Combination of a dipole with a plane reflecting surface H01Q19/106 takes precedence; strip line H01Q9/065
• CPC Class Codes: H01Q 21/08 the units being spaced along or adjacent to a rectilinear path waveguide fed H01Q21/0037
• CPC Class Codes: H01Q 9/285 Planar dipole H01Q9/065 takes precedence; patch antenna H01Q9/0407

Abstract

An antenna is provided with a reflector defining a slot, a feed harness, a plurality of radiating, elements electrically connected to the feed harness through the slot, and a printed circuit board including the feed harness and the radiating elements. The periphery of the slot is laterally separated from the feed harness and from the printed circuit board. The radiating elements and the feed harness may be located on different sides of the reflector. The feed harness and the radiating elements may be formed on an integral pattern structure. The position of the feed harness relative to the positions of the radiating elements may be adjustable.

Claims

1. An antenna, the antenna comprising:

a reflector defining a slot having a periphery;

a feed harness;

a plurality of radiating elements, the radiating elements electrically connected to the feed harness through the slot; and

a printed circuit board, the printed circuit board including the feed harness and the radiating elements;

wherein the periphery of the slot is laterally separated from the feed harness and from the printed circuit board.

2. An antenna according to claim 1, wherein the radiating elements are located on one side of the reflector and the feed harness is substantially located on the other side of the reflector.

3. An antenna according to claim 2, further including an electrically conducting structure, the electrically conducting structure substantially enclosing the feed harness.

4. An antenna according to claim 3, further including electromagnetically absorbing material, the electrically absorbing material substantially enclosed by the electrically conducting structure.

5. An antenna according to claim 4, wherein the electromagnetically absorbing material is positioned between the feed harness and an inner surface of the electrically conducting structure.

6. An antenna according to claim 2, further including at least one electrically conducting extension coupled to the reflector.

7. An antenna according to claim 6, wherein the electrically conducting structure further includes a plurality of fins.

8. An antenna according to claim 6, wherein the electrically conducting extension further includes a plurality of corrugations.

9. An antenna according to claim 2, further including an electrically insulating cover, the radiating elements contained between the electrically insulating cover and the reflector.

10. An antenna according to claim 1, wherein the feed harness and the radiating elements are formed on an integral pattern structure.

11. An antenna according to claim 10, wherein the integral pattern structure is deposited on the printed circuit board.

12. An antenna according to claim 10, wherein the integral pattern structure results from etching.

13. An antenna according to claim 1, wherein the printed circuit board is planar and the plane of the printed circuit board is at a first interior angle with respect to an outer surface of the reflector in the vicinity of the slot.

14. An antenna according to claim 13, wherein the first interior angle is between 80 degrees and 100 degrees.

15. An antenna according to claim 14, wherein the first interior angle is substantially 90 degrees.

16. An antenna according to claim 1, wherein the printed circuit board includes a first planar printed circuit board element containing the radiating elements and a second planar printed circuit board element containing substantially all of the feed harness, the first printed circuit board element and the second printed circuit board element being at a second interior angle relative to each other.

17. An antenna according to claim 16, wherein the printed circuit board is integral and a bend in the printed circuit board demarks the first planar printed circuit board element from the second planar printed circuit board element.

18. An antenna according to claim 16, wherein the printed circuit board is not integral and the first planar printed circuit board element is coupled to the second planar printed circuit board element.

19. An antenna according to claim 16, wherein the second interior angle is between 80 degrees and 100 degrees.

20. An antenna according to claim 19, wherein the second interior angle is substantially 90 degrees.

21. An antenna according to claim 16, wherein the first planar printed circuit board element contains the radiating elements, the first planar circuit board element at a first interior angle with respect to the reflector in the vicinity of the slot.

22. An antenna according to claim 20, wherein the first interior angle is between 80 degrees and 100 degrees.

23. An antenna according to claim 22, wherein the first interior angle is substantially 90 degrees.

24. An antenna according to claim 21, wherein the second interior angle is substantially 90 degrees.

25. An antenna according to claim 1, wherein the separation between the periphery of the slot and the printed circuit board is maintained by an electrically insulating material.

26. An antenna according to claim 1, further including a flange extending perpendicular to the plane of the reflector in the vicinity of the slot.

27. An antenna according to claim 1, wherein the reflector includes a grounded planar surface.

28. An antenna according to claim 1, wherein the reflector includes a curved grounded surface.

29. An antenna according to claim 1, wherein the reflector includes a plurality of grounded surfaces.

30. An antenna according to claim 1, wherein the reflector includes a grounded tubular surface.

31. An antenna according to claim 30, wherein the reflector includes a grounded canister.

32. An antenna, the antenna comprising:

a reflector defining a slot having a periphery;

a feed harness; and

a plurality of radiating elements electrically connected to the feed harness through the slot;

wherein the radiating elements are included on a first plane and the feed harness is substantially included on a second plane; and

wherein the first plane is at a second interior angle with respect to the second plane.

33. An antenna according to claim 32, wherein the first plane is at a first interior angle with respect to the reflector in the vicinity of the slot.

34. An antenna according to claim 33, wherein the first interior angle is substantially 90 degrees.

35. An antenna according to claim 34, wherein the second interior angle is substantially 90 degrees.

36. An antenna according to claim 32, wherein the second plane is substantially parallel to the plane of the reflector in the vicinity of the slot.

37. An antenna according to claim 32, wherein the radiating elements are located on one side of the reflector and the feed harness is substantially located on the other side of the reflector.

38. An antenna according to claim 37, further including an electrically conducting structure, the electrically conducting structure substantially enclosing the feed harness.

39. An antenna according to claim 38, further including electromagnetically absorbing material, the electrically absorbing material enclosed by the electrically conducting structure.

40. An antenna according to claim 39, wherein the electromagnetically absorbing material is positioned between the feed harness and an inner surface of the electrically conducting structure.

41. An antenna according to claim 37, further including at least one electrically conducting extension coupled to the reflector.

42. An antenna according to claim 41, wherein the electrically conducting extension further includes a plurality of fins.

43. An antenna according to claim 41, wherein the electrically conducting extension further includes a plurality of corrugations.

44. An antenna according to claim 37, further including an electrically insulating cover, the radiating elements contained between the electrically insulating cover and the reflector.

45. An antenna according to claim 32, wherein the feed harness and the radiating elements are formed on an integral pattern structure.

46. An antenna according to claim 45, wherein the feed harness and the radiating elements comprise a metal.

47. An antenna according to claim 46 wherein the feed harness and radiating elements are stamped from a metal sheet.

48. An antenna according to claim 32, wherein the periphery of the slot extends perpendicular to the plane of the reflector in the vicinity of the slot.

49. An antenna according to claim 32, wherein the periphery of the slot is laterally separated from the feed harness.

50. An antenna according to claim 49, wherein the separation between the periphery of the slot and the feed harness includes an electrically insulating material.

51. An antenna, the antenna comprising:

a reflector defining a slot having a periphery;

a feed harness; and

a plurality of radiating elements, the radiating elements electrically connected to the feed harness through the slot;

wherein the position of the feed harness and the positions of the radiating elements with respect to the slot are adjustable.

52. An antenna according to claim 51, wherein the feed harness and the radiating elements are formed on an integral pattern structure.

53. An antenna according to claim 51, wherein the position of the feed harness and the positions of the radiating elements with respect to the slot are simultaneously adjustable.

54. An antenna according to claim 51, wherein the radiating elements are on one side of the reflector and the feed harness is substantially on the other side of the reflector.

55. An antenna according to claim 51, wherein the position of the feed harness and the positions of the radiating elements with respect to the slot are manually adjustable.

56. An antenna according to claim 51, wherein the position of the feed harness and the positions of the radiating elements with respect to the slot are mechanically adjustable.

57. An antenna according to claim 56, wherein the position of the feed harness and the positions of the radiating elements with respect to the slot are remotely adjustable.