Abstract: A combined antenna system used for both vehicles and structures, whereby a satellite antenna is placed concentrically around a conventional mast antenna that can be used for both conventional FM radio and also terrestrial retransmission of the satellite broadcast signals. The combined antenna system, in a vehicle implementation, is configured to use only the one hole created in the vehicle manufacturing process, thereby preventing the necessity of drilling a second hole for the satellite antenna, which alleviates deterioration of the vehicle's body. Additionally, because the combined antenna system can be advantageously placed, a shorter RF cable connecting it to a receiver box can be implemented than otherwise would be the case for a satellite antenna located on a window or roof of a vehicle.
Type:
Grant
Filed:
August 14, 2002
Date of Patent:
October 19, 2004
Assignees:
Delphi-D Antenna Systems, XM Satellite Radio, Inc.
Inventors:
Argy Petros, Terry C. Helstrom, Imtiaz Zafar