Title:
【発明の名称】能動アンテナ通信システム
Document Type and Number:
Japanese Patent JP2003531543
Kind Code:
A
Abstract:
This disclosure provides a communication system using a high-altitude aircraft traveling at relatively slow speeds, which can remain airborne for long periods of time. The communication system uses the airplane as a long term high altitude platform that relays signals between one or more ground-stations and/or satellites, aircraft, and the like. The ground-stations have narrow-beam antennas that are aimable, permitting the aircraft to maintain a larger station than would otherwise be possible using the narrow-beam antennas. The ground-stations adjust their aim based on information either gained by tracking the aircraft's signal, or transmitted by the aircraft to the ground-station.
Inventors:
Paul B Mac Lady
Application Number:
JP2001577645A
Publication Date:
October 21, 2003
Filing Date:
April 14, 2001
Export Citation:
Assignee:
Aerovironment Inc.
International Classes:
H04B7/26; H01Q1/24; H01Q1/28; H01Q3/18; H01Q3/20; H04B7/185; (IPC1-7): H04B7/185; H04B7/26
Attorney, Agent or Firm:
Masayuki Masabayashi (2 others)