Vehicle rearview assembly incorporating a tri-band antenna module
AssigneeGentex Corporation
InventorRobert R. Turnbull
Life of this patent
Estimating the term…
Abstract
A rearview assembly includes a mounting structure and a tri-band antenna module. The mounting structure is adapted for mounting to a conductive mounting button that is attached to an inside surface of a vehicle windshield. The tri-band antenna module is mounted adjacent the conductive mounting button and includes a patch antenna and a dual-band cellular antenna.
Claims21
A rearview assembly for providing an image of a scene at a rear of a vehicle to a driver of the vehicle, the assembly comprising:
- a mounting structure adapted for mounting to a conductive mounting button that is attached to an inside surface of a vehicle windshield;
- and
- an antenna module mounted adjacent the conductive mounting button, the antenna module comprising a dual-band cellular antenna, wherein the dual-band cellular antenna is configured such that the mounting button increases the gain of the dual-band cellular antenna due to the fact that the mounting button increases the area of the ground plane.
A rearview assembly for a vehicle, the assembly comprising:
- a mounting structure adapted for mounting to a conductive mounting button that is attached to an inside surface of a vehicle windshield;
- and
- an antenna module mounted adjacent the conductive mounting button, the antenna module including a patch antenna and a dual-band cellular antenna, wherein the patch antenna operates at about 1.57542 GHz and the dual-band cellular antenna operates in a first range from about 824 to 894 MHz and in a second range from about 1.85 to 1.99 GHz, and wherein the dual-band cellular antenna is configured such that the mounting button increases the gain of the dual-band cellular antenna due to the fact that the mounting button increases the area of the ground plane.
A rearview assembly for providing an image of a scene at a rear of a vehicle to a driver of the vehicle, the assembly comprising:
- a mounting structure adapted for mounting to a mounting button that is attached to an inside surface of a vehicle windshield;
- a tri-band antenna module mounted adjacent the mounting button, the antenna module including a patch antenna and a dual-band cellular antenna;
- an amplifier for amplifying a signal received through the patch antenna;
- and
- a filter coupled between the amplifier and the patch antenna, wherein the filter blocks cellular signals associated with the dual-band cellular antenna and thereby prevents the cellular signals from overloading the amplifier associated with the patch antenna, wherein the dual-band cellular antenna is configured such that the mounting button increases the gain of the dual-band cellular antenna due to the fact that the mounting button increases the area of the ground plane.
Dependencies are inferred from the claim text.