×

Communications system using high altitude relay platforms

  • US 20040102191A1
  • Filed: 11/22/2002
  • Published: 05/27/2004
  • Est. Priority Date: 11/22/2002
  • Status: Abandoned Application
First Claim
Patent Images

1. A communications system for transferring signals between ground-based stations, said system having a stratospheric airborne link which comprises:

  • an airborne platform positioned at a predetermined altitude in the stratosphere, wherein said platform is a single stage, turbocharged, piston-powered aircraft;

    at least one spot beam antenna mounted on said platform for sending a signal between a first ground-based station and said platform using a carrier in a first frequency range;

    an airborne antenna mounted on said platform for passing said signal between said platform and a second ground-based station using a carrier in a second frequency range; and

    a communications relay unit mounted on said platform for converting carrier frequencies for said signal between said first frequency range and said second frequency range, and for transferring said signal between said spot beam antenna and said airborne antenna to establish communications between said first and second ground-based stations.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×