Forward throw antenna utility meter with antenna mounting bracket

• US 9,093,744 B2
• Filed: 12/23/2011
• Issued: 07/28/2015
• Est. Priority Date: 11/03/2006
• Status: Active Grant

• Current Assignee: Itron, Inc.
• Original Assignee: Itron, Inc.
• Inventors: Seal, Robert Bryan, Khan, Zafarullah, Dempsey, Michael
• Primary Examiner(s): Backer, Firmin
• Assistant Examiner(s): MURPHY, JEROLD B
• Application Number:
  US13/336,653
• Publication Number:
  US 20120098710A1
• Time in Patent Office: 1,313 Days
• Field of Search: 340/870.02, 340/870.07, 340/870.28, 340/313, 702/45, 702/57, 702/60
• US Class Current: 1/1
• CPC Class Codes: H01Q 1/12 Supports; Mounting means
• CPC Class Codes: H01Q 1/2233 used in consumption-meter devices, e.g. electricity, gas or water meters
• CPC Class Codes: H01Q 9/16 with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole H01Q9/44 takes precedence

Abstract

A utility meter assembly comprising: a plurality of meter components configured for measuring and collecting data, the meter components including a transceiver operative for communications over a network; a faceplate, configured such that meter reading information is displayed on the front of the faceplate; an exterior cover configured to enclose the meter components and the faceplate, wherein the faceplate is forward of the plurality of meter components; an internal dipole antenna that is situated in a space defined between the faceplate and the exterior cover toward the front of the utility meter assembly; and a mounting bracket that supports the internal dipole antenna. The combined sub-assembly of the mounting bracket and the internal dipole antenna is typically situated away from the meter components, so as to minimize interference by the meter components, and thus achieve improved communications properties measured in isotropic sensitivity and radiated power.

Claims

1. A utility meter assembly comprising:

an exterior cover including an open end for receiving and enclosing a plurality of meter components of the utility meter assembly and a closed end, the closed end defining an inner surface and an outer surface;

the plurality of meter components housed within the exterior cover and operative for measuring and collecting data, the plurality of meter components including a transceiver operative for signal communications over a network and a metering information component;

a faceplate providing a surface for the metering information component and disposed a distance from the inner surface of the exterior cover, thereby defining a space between the inner surface of the exterior cover of the utility meter assembly and the faceplate, and further the surface of the faceplate containing an opening;

an internal dipole antenna comprising a center-fed driven element further comprising a pair of flexible, oppositely disposed, elongate, metallic, radiating elements deformed into a shape that conforms to an internal shape of the exterior cover and positioned such that the metallic elements extend into the space defined between the inner surface of the exterior cover of the utility meter assembly and forward of the surface of the faceplate, the radiating elements of the dipole antenna being operatively coupled to the transceiver; and

a mounting bracket comprising an arcuate-shaped element defining a segment of a cylindrical surface for supporting the internal dipole antenna and positioned such that the mounting bracket extends into the space defined between the inner surface of the exterior cover of the utility meter assembly and forward of the surface of the faceplate, the bracket comprising at least at least one downwardly extending member of a length that is received by the opening on the surface of the faceplate thereby attaching the bracket to the surface of the faceplate.

2. The utility meter assembly of claim 1, wherein the faceplate is a front of an inner cover, the inner cover to enclose the plurality of meter components.

3. The utility meter assembly of claim 1, wherein the meter components include a metering information component.

4. The utility meter assembly of claim 3, wherein the faceplate is substantially coplanar with the metering information component.

5. The utility meter assembly of claim 3, wherein the metering information component is an electronic display.

6. The utility meter assembly of claim 1, further comprising a connection point on the faceplate for securing the internal dipole antenna to the faceplate.

7. The utility meter assembly of claim 1, wherein the exterior cover is cylindrical.

8. The utility meter assembly of claim 7, wherein the internal dipole antenna is conformed to a curved shape of the cylindrical exterior cover.

9. The utility meter assembly of claim 1, wherein the internal dipole antenna is a first dipole antenna, and further comprising a second dipole antenna positioned generally parallel to the first dipole antenna.

10. The utility meter assembly of claim 9, wherein first dipole antenna is to be tuned to a first frequency band and the second dipole antenna is to be tuned to a second frequency band.

11. The utility meter assembly of claim 1, wherein the utility meter assembly is configured for measuring and collecting data related to at least one of:

electrical power, natural gas, or water.

12. The utility meter assembly of claim 1, wherein the internal dipole antenna is concealed by a coversheet material, the coversheet material configured for providing environmental protection and electrical insulation.

13. The utility meter assembly of claim 1, further comprising a secondary cover that encloses the faceplate and the plurality of meter components, and further wherein the dipole antenna is mounted on the secondary cover.

14. The utility meter assembly of claim 1, wherein the open end and the closed end of the exterior cover are planar surfaces substantially parallel to each other and having a common central vertical axis that passes through the centers of the open end and the closed end in a direction substantially perpendicular to the closed end of the exterior cover.

15. The utility meter assembly of claim 14, wherein the at least one downwardly extending member of a length is comprises (i) a tab that extends a distance in a direction substantially parallel to the central vertical axis so that the tab engages in the opening on the surface of the faceplate, (ii) a deformable self-locking tab that includes a downwardly extending snappable member that engages in the opening on the surface of the faceplate, or (iii) a radially extending tab further comprising (a) a cylindrical end portion extending towards the center of the faceplate, wherein the axis of the cylindrical end portion is substantially parallel to the central vertical axis, and (b) a rectangular front portion extending radially inward towards the center of the faceplate.

16. The utility meter assembly of claim 1, wherein the exterior cover is cylindrical in shape.

17. The utility meter assembly of claim 16, wherein the arcuate-shaped element of the mounting bracket has a radius of curvature that is substantially similar to the radius of curvature of the cylindrical exterior cover.

18. The utility meter assembly of claim 1, wherein the faceplate is circular in shape.

19. The utility meter assembly of claim 18, wherein the mounting bracket is positioned on a circumference of the faceplate in a direction along a radius of the circular faceplate.

20. A utility meter assembly comprising:

an exterior cover including an open end for receiving and enclosing a plurality of meter components of the utility meter assembly and a closed end, the closed end defining an inner surface and an outer surface;

the plurality of meter components housed within the exterior cover;

a faceplate providing a surface for a metering information component and disposed a distance from the inner surface of the exterior cover, thereby defining a space between the inner surface of the exterior cover of the utility meter assembly and the surface of the faceplate, the surface of the faceplate further supporting a mounting bracket via a first supporting element;

a mounting bracket having an inner surface and an outer surface and positioned such that the mounting bracket extends into the space, the bracket attaching to the surface of the faceplate via the first supporting element; and

an internal dipole antenna comprising a center-fed driven element further comprising a pair of flexible, deformable, metallic, radiating elements and positioned such that the metallic elements extend into the space, the dipole antenna being held in position by the mounting bracket via a second supporting element.

21. The utility meter assembly of claim 20, wherein the first supporting element comprises fastening screws or bolts retained by openings on the mounting bracket.

22. The utility meter assembly of claim 20, wherein the first supporting element comprises adhesive taping material and glue.

23. The utility meter assembly of claim 20, wherein the second supporting element is affixed to the inner surface of the bracket and further comprises (i) at least one member of a length downwardly extending from the mounting bracket (ii) the opening on the surface of the faceplate, wherein the at least one member is received by the opening.

24. The utility meter assembly of claim 23, wherein the at least one downwardly extending member is made of plastic, plastic composite material, or poly carbonate material.

25. The utility meter assembly of claim 20, wherein the outer surface of the mounting bracket is deformable so as to conform to a shape of an inner surface of the exterior cover.

26. The utility meter assembly of claim 20, wherein the mounting bracket is arcuate-shaped element defining a segment of a cylindrical surface.

27. The utility meter assembly of claim 20, wherein the faceplate is circular in shape.

28. The utility meter assembly of claim 27, wherein the mounting bracket is an arcuate-shaped element defining a segment of a cylindrical surface, the mounting bracket having a radius of curvature that is substantially similar to the radius of curvature of the cylindrical exterior cover.

29. The utility meter assembly of claim 27, wherein the mounting bracket is positioned on a circumference of the faceplate in a direction along a radius of the circular faceplate.

30. The utility meter assembly of claim 20, wherein the exterior cover is cylindrical in shape.

31. The utility meter assembly of claim 20, wherein the radiating elements of the dipole antenna are formed by depositing conductive material on a non-conducting mounting substrate.

32. The utility meter assembly of claim 31, wherein the material of the mounting substrate comprises plastic, fiberglass, or Kapton.

33. The utility meter assembly of claim 31, wherein the conductive material is copper.

34. The utility meter assembly of claim 20, wherein the mounting bracket is constituted from a single element.

35. The utility meter assembly of claim 20, wherein the mounting bracket is constituted from a combination of elements assembled together.

36. The utility meter assembly of claim 20, wherein the mounting bracket is made of plastic, plastic composite material, or poly carbonate material.

37. The utility meter assembly of claim 20, wherein the second supporting element comprises adhesive taping material and glue.

38. A mounting bracket for supporting an internal dipole antenna for use in connection with a utility meter assembly that includes a faceplate for displaying meter reading information, the faceplate disposed a distance from an inner surface of an exterior cover of the utility meter assembly, thereby defining a space between the inner surface of the exterior cover of the utility meter assembly and a first surface of the faceplate, the faceplate further including an opening on the first surface, the mounting bracket comprising:

an outer surface and an inner surface, the outer surface supporting the internal dipole antenna by a supporting element; and

at least one attachment member of a length extending from the inner surface of the mounting bracket that is received by the opening on the first surface of the faceplate, thereby attaching the mounting bracket to the first surface of the faceplate,

whereby the internal dipole antenna is positioned in the space between the inner surface of the exterior cover of the utility meter assembly and the first surface of the faceplate.

39. The mounting bracket of claim 38, wherein the at least one attachment member of a length that comprises the mounted bracket that includes (i) a partially deformable tab that extends a distance in a direction substantially perpendicular to the first surface of the faceplate such that the tab engages in the opening on the first surface of the faceplate, (ii) a deformable self-locking tab that includes a downwardly extending snappable member that engages in the opening on the first surface of the faceplate, or (iii) a radially extending tab further comprising (a) a cylindrical end portion extending towards the center of the faceplate wherein the axis of the cylindrical end portion is substantially perpendicular to the first surface of the faceplate, and (b) a rectangular front portion with one dimension of the rectangular front portion extending inwardly towards the center of the faceplate.

40. The mounting bracket of claim 38, wherein the supporting element comprises fastening screws or bolts retained by openings on the mounting bracket.

41. The mounting bracket of claim 38, wherein the supporting element comprises adhesive taping material and glue.

42. The mounting bracket of claim 38, wherein the mounting bracket is made of plastic, plastic composite material, or poly carbonate material.

43. The mounting bracket of claim 38, wherein the at least one downwardly extending member is made of plastic, plastic composite material, or poly carbonate material.

44. The mounting bracket of claim 38, wherein the mounting bracket is constituted from a single element.