Title:
移動衛星を追跡するアンテナシステム
Document Type and Number:
Japanese Patent JP4219557
Kind Code:
B2
Abstract:
The invention relates to a system of antennas for tracking nonsynchronous satellites (21, 22) along predefined trajectories.It is characterized in that the said system includes at least first (11) and second (12) transmitter/receiver elements moving in the vicinity of the focusing surface of the system (1) along a line of focal points, the first element (11) actively tracking a first satellite (21) and the second element (12) standing by to actively track a second satellite (22).Particular application to the tracking of nonsynchronous satellites, in particular low- and mid-orbit satellites, and of geostationary satellites.
Inventors:
Irtulan, Patrice
Hurdu, Henri
Luzir, ants
Hurdu, Henri
Luzir, ants
Application Number:
JP2000546418A
Publication Date:
February 04, 2009
Filing Date:
April 19, 1999
Export Citation:
Assignee:
THOMSON MULTIMEDIA
International Classes:
H01Q3/14; H01Q5/00; H01Q19/06; H01Q15/08; H04B7/185
Domestic Patent References:
| JP5183328A | ||||
| JP8242119A | ||||
| JP50011351A | ||||
| JP60170304A | ||||
| JP56012106A | ||||
| JP7070907B2 | ||||
| JP61027207Y1 | ||||
| JP6504659A | ||||
| JP6502052A |
Foreign References:
| US4531129 | ||||
| US5703603 |
Attorney, Agent or Firm:
Tadahiko Ito