Antenna assemblies with composite bases

• US 20080100521A1
• Filed: 10/30/2006
• Published: 05/01/2008
• Est. Priority Date: 10/30/2006
• Status: Abandoned Application

• Current Assignee: Laird Technologies Incorporated (DuPont de Nemours, Inc.)
• Original Assignee: Laird Technologies Incorporated (DuPont de Nemours, Inc.)
• Inventors: Herbert, Derek, Lindackers, Ralf, Yasin, Hasan
• Application Number:
  US11/589,342
• Publication Number:
  US 20080100521A1
• Time in Patent Office: Days
• US Class Current: 343/713
• CPC Class Codes: H01Q 1/1214 through a wall
• CPC Class Codes: H01Q 1/3275 mounted on a horizontal surface of the vehicle, e.g. on roof, hood, trunk
• CPC Class Codes: H01Q 1/526 Electromagnetic shields

Abstract

An antenna assembly according to one embodiment is configured to be installed and fixedly mounted to a vehicle body wall after being inserted into a mounting hole in the vehicle body wall from an external side of the vehicle and nipped from the interior compartment side. The antenna assembly may include a composite antenna base, which may be operable as a primary load-bearing structure for transferring loads associated with the antenna assembly to the vehicle body wall. The composite antenna base may integrally define means for mounting a printed circuit board without using mechanical fasteners. The composite antenna base may integrally define one or more resiliently flexible retention members for helping retain the relative position of the composite antenna base to the vehicle body wall before the antenna assembly is fixedly mounted to the vehicle body wall.

Claims

1. An antenna assembly configured to be installed and fixedly mounted to a vehicle body wall after being inserted into a mounting hole in the vehicle body wall from an external side of the vehicle and nipped from the interior compartment side, the antenna assembly comprising a load-bearing composite antenna base, wherein the antenna assembly is configured such that, when the antenna assembly is fixedly mounted to the vehicle body wall, the load-bearing composite antenna base is operable as a primary load-bearing structure transferring loads associated with the antenna assembly to the vehicle body wall.

2. The antenna assembly of claim 1, further comprising a printed circuit board having at least one antenna element, and coupled to the load-bearing composite antenna base such that the weight of the printed board circuit is borne by the load-bearing composite antenna base, thereby allowing the load-bearing composite antenna to transfer loads arising from the weight of the printed circuit board to the vehicle body wall.

3. The antenna assembly of claim 1, wherein the load-bearing composite antenna base integrally defines means for mounting a printed circuit board without using mechanical fasteners.

4. The antenna assembly of claim 1, wherein the load-bearing composite antenna base integrally defines at least one post configured to be engagingly received within at least one opening of a printed circuit board for inhibiting relative movement between the printed circuit board and the load-bearing composite antenna base.

5. The antenna assembly of claim 1, wherein the load-bearing composite antenna base integrally defines a retaining wall configured for contacting at least a portion of a printed circuit board, to thereby inhibit relative movement between the printed circuit board and the load-bearing composite antenna base.

6. The antenna assembly of claim 1, wherein the load-bearing composite antenna base integrally defines one or more resiliently flexible retention members configured to be inserted through the mounting hole and disposed on the interior compartment side of the vehicle body wall, to thereby help retain the relative position of the load-bearing composite antenna base to the vehicle body wall before the antenna assembly is fixedly mounted to the vehicle body wall.

7. The antenna assembly of claim 1, further comprising at least one grounding element that forms at least a portion of a path to ground for the antenna assembly to the vehicle body wall.

8. The antenna assembly of claim 1, further comprising a radome attached to the load-bearing composite antenna base, without mechanical fasteners, by at least one or more of a snap fit, heat staking, solvent welding, or sonic welding.

9. The antenna assembly of claim 1, further comprising a radome coupled to the load-bearing composite antenna base, and at least one sealing member disposed for substantially sealing the interface defined generally between the radome and the load-bearing composite antenna base, to thereby inhibit the ingress of contaminants through the interface into the interior enclosure collectively defined by the radome and load-bearing composite antenna base, wherein the load-bearing composite antenna base integrally defines at least one shoulder generally along the interface, and wherein the at least one sealing member is seated generally against the at least one shoulder.

10. The antenna assembly of claim 1, wherein the load-bearing composite antenna base includes an opening, and wherein the antenna assembly further comprises an electrically-conductive insert at least partially positioned within the opening of the load-bearing composite antenna base such that the electrically-conductive insert forms at least a portion of a path to ground for the antenna assembly to the vehicle body wall, the electrically-conductive insert configured for retaining a fastener element.

11. The antenna assembly of claim 10, wherein the electrically-conductive insert is internally threaded for threadedly engaging a threaded portion of a mechanical fastener.

12. The antenna assembly of claim 1, wherein the load-bearing composite antenna base is made from polymer.

13. An antenna assembly configured to be installed and fixedly mounted to a vehicle body wall after being inserted into a mounting hole in the vehicle body wall from an external side of the vehicle and nipped from the interior compartment side, the antenna assembly comprising:

a composite antenna base integrally defining mounting means for a printed circuit board; and

a printed circuit board having at least one antenna element, and mounted to said mounting means integrally defined by the composite antenna base without mechanical fasteners.

14. The antenna assembly of claim 13, wherein the antenna assembly includes at least one post integrally defined by one of the composite antenna base and the printed circuit board, at least one opening integrally defined by the other one of said composite antenna base and said printed circuit board, and wherein the printed circuit board is mounted to the composite antenna base with the at least one post slidably received within the at least one opening.

15. The antenna assembly of claim 13, wherein the composite antenna base integrally defines a retaining wall, and wherein the printed circuit board is mounted to the composite antenna base such that that contact between the retaining wall and the printed circuit board inhibits relative movement thereof.

16. The antenna assembly of claim 13, further comprising at least one EMI shield component interposed generally between the printed circuit board and the composite antenna base for shielding the at least one antenna element.

17. The antenna assembly of claim 13, wherein the composite antenna base integrally defines one or more resiliently flexible retention members configured to be inserted through the mounting hole and disposed on the interior compartment side of the vehicle body wall to thereby help retain the relative position of the composite antenna base to the vehicle body wall before the antenna assembly is fixedly mounted to the vehicle body wall.

18. The antenna assembly of claim 13, further comprising at least one grounding element that forms at least a portion of a path to ground for the antenna assembly to the vehicle body wall.

19. The antenna assembly of claim 13, further comprising a radome attached to the composite antenna base, without mechanical fasteners, by at least one or more of a snap fit, heat staking, solvent welding, or sonic welding.

20. The antenna assembly of claim 13, further comprising a radome coupled to the composite antenna base, and at least one sealing member disposed for substantially sealing the interface defined generally between the radome and the composite antenna base, to thereby inhibit the ingress of contaminants through the interface into the interior enclosure collectively defined by the radome and composite antenna base, wherein the composite antenna base integrally defines at least one shoulder generally along the interface, and wherein the at least one sealing member is seated generally against the at least one shoulder.

21. The antenna assembly of claim 13, wherein the composite antenna base includes an opening, and wherein the antenna assembly further comprises an electrically-conductive insert at least partially positioned within the opening of the composite antenna base such that the electrically-conductive insert forms at least a portion of a path to ground for the antenna assembly to the vehicle body wall, the electrically-conductive insert configured for retaining a fastener element.

22. The antenna assembly of claim 21, wherein the electrically-conductive insert is internally threaded for threadedly engaging a threaded portion of a mechanical fastener.

23. An antenna assembly configured to be installed and fixedly mounted to a vehicle body wall after being inserted into a mounting hole in the vehicle body wall from an external side of the vehicle and nipped from the interior compartment side, the antenna assembly comprising a composite antenna base integrally defining one or more resiliently flexible retention members configured to be inserted through the mounting hole and disposed on the interior compartment side of the vehicle body wall to thereby help retain the relative position of the composite antenna base to the vehicle body wall before the antenna assembly is fixedly mounted to the vehicle body wall.

24. The antenna assembly of claim 23, wherein the composite antenna base is formed from a material having sufficient resiliency to permit the one or more resiliently flexible retention members to be deformed for fitting through the mounting hole and then to expand upon passing completely through the mounting hole.

25. The antenna assembly of claim 23, wherein the composite antenna base integrally includes a first portion configured to be disposed on the external side of the vehicle body panel, and a second protruding portion configured to be inserted into the mounting hole, the second protruding portion integrally defining the one or more resiliently flexible retention members and one or more tapered faces.

26. The antenna assembly of claim 23, further comprising at least one grounding element that forms at least a portion of a path to ground for the antenna assembly to the vehicle body wall.

27. The antenna assembly of claim 23, further comprising a radome attached to the composite antenna base, without mechanical fasteners, by at least one or more of a snap fit, heat staking, solvent welding, or sonic welding.

28. The antenna assembly of claim 23, further comprising a radome coupled to the composite antenna base, and at least one sealing member disposed for substantially sealing the interface defined generally between the radome and the composite antenna base, to thereby inhibit the ingress of contaminants through the interface into the interior enclosure collectively defined by the radome and composite antenna base, wherein the composite antenna base integrally defines at least one shoulder generally along the interface, and wherein the at least one sealing member is seated generally against the at least one shoulder.

29. The antenna assembly of claim 23, wherein the composite antenna base includes an opening, and wherein the antenna assembly further comprises an electrically-conductive insert at least partially positioned within the opening of the composite antenna base such that the electrically-conductive insert forms at least a portion of a path to ground for the antenna assembly to the vehicle body wall, the electrically-conductive insert configured for retaining a fastener element.

30. The antenna assembly of claim 29, wherein the electrically-conductive insert is internally threaded for threadedly engaging a threaded portion of a mechanical fastener.