System and method for integrating antennas into a vehicle rear-deck spoiler
An automotive spoiler-type device to house a suite of sensors is described. Such sensors can include, for example, transmit antennas, receive antennas, video cameras, Infrared (IR) sensors, Electro-Optic (EO) sensors, air sensors, etc. Examples of the information transmitted and received include voice, data, navigation, and other communications functions, including, but not limited to, two-way radios, GPS, wireless Internet applications, etc. In one embodiment, the spoiler antenna installations are lower in profile and more compact than conventional vehicle antennas. In one embodiment, a top-load portion of a monopole antenna is used as a ground plane for a patch-type or cavity type antenna.
1. An integrated antenna system in an automobile rear-deck spoiler, comprising:
a first monopole antenna integrated into an automobile rear-deck spoiler, said first monopole having a substantially vertical portion and a top-load, said substantially vertical portion provided in a first riser;
a second antenna using said top-load as a around plane, wherein a coaxial cable for said patch-type antenna is provided inside said substantially vertical portion of said first monopole; and
a brake light power lead routed through said spoiler along a path approximately parallel to said substantially vertical portion of said first monopole antenna.
2. An integrated antenna system in an automobile rear-deck spoiler, comprising:
a first monopole antenna integrated into an automobile rear-deck spoiler, said first monopole having a substantially vertical portion and a top-load, said substantially vertical portion provided in a first riser;
a second antenna using said top-load as a ground plane, wherein a coaxial cable for said patch-type antenna is provided inside said substantially vertical portion of said first monopole; and
a brake light power lead configured to improve an impedance match of said first monopole antenna.
3. The apparatus of claim 2 , further comprising at least one of, a video camera, an infrared sensor, an electro-optic sensor, and an air sensor.
4. The apparatus of claim 2 , further comprising a third monopole antenna provided in a second riser.
5. The apparatus of claim 2 , wherein said second antenna comprises a GPS antenna.
6. The apparatus of claim 2 , wherein said second antenna comprises a patch-type antenna.
7. The apparatus of claim 2 , wherein said second antenna comprises a cavity-type antenna.
8. An apparatus, comprising:
an automobile rear-deck spoiler having at least a first riser and a second riser;
a first monopole antenna disposed in said first riser, said first monopole antenna configured to operate in a first frequency band;
a second monopole antenna disposed in said second riser, said second monopole antenna configured to operate in a second frequency band; said second monopole antenna having a top load;
a first horizontal antenna configured to use said top load as a ground plane; and
a brake light power lead routed through said first riser along a path approximately parallel to said first monopole antenna.
9. The apparatus of claim 8 , wherein a coaxial feed for said first horizontal antenna is provided inside at least a portion of said second monopole antenna.
10. The apparatus of claim 8 , further comprising a third monopole antenna provided in a third riser.
11. The apparatus of claim 8 , wherein said first horizontal antenna comprises a GPS antenna.
12. The apparatus of claim 8 , wherein said first horizontal antenna comprises a patch-type antenna.
13. The apparatus of claim 8 , wherein said first horizontal antenna comprises a cavity-type antenna.
14. An apparatus, comprising:
an automobile rear-deck spoiler having at least a first riser and a second riser;
a first monopole antenna disposed in said first riser, said first monopole antenna configured to operate in a first frequency band;
a second monopole antenna disposed in said second riser, said second monopole antenna configured to operate in a second frequency band; said second monopole antenna having a top load;
a first horizontal antenna configured to use said top load as a ground plane; and
a brake light power lead routed through said second riser along a path approximately parallel to said second monopole antenna.
15. An apparatus, comprising:
a vehicle having a spoiler-type structure comprising at least a first riser;
a first monopole antenna disposed in said first riser, said first monopole antenna having a top load, said first monopole antenna configured to operate in a first frequency band;
a first horizontal antenna configured to use said top load as a ground plane; and
a brake light power lead routed through said first riser along a path approximately parallel to said first monopole antenna so as to improve an input impedance of said first monopole antenna.
16. The apparatus of claim 15 , wherein a coaxial feed for said first horizontal antenna is provided inside at least a portion of said first monopole antenna.
17. The apparatus of claim 15 , further comprising a second monopole antenna provided in a second riser, said second monopole antenna configured to operate in a second frequency band.
18. The apparatus of claim 15 , wherein said first horizontal antenna comprises a GPS antenna.
19. The apparatus of claim 15 , wherein said first horizontal antenna comprises a patch-type antenna.
20. The apparatus of claim 15 , wherein said first horizontal antenna comprises a cavity-type antenna.
21. The apparatus of claim 15 , wherein a coaxial feed for said first horizontal antenna is provided inside at least a portion of said first monopole antenna.