Communications: radio wave antennas – Antennas – With means for moving directive antenna for scanning,...
Reexamination Certificate
2005-10-19
2009-02-17
Ho, Tan (Department: 2821)
Communications: radio wave antennas
Antennas
With means for moving directive antenna for scanning,...
C343S765000, C343S766000, C342S359000
Reexamination Certificate
active
07492323
ABSTRACT:
The present invention relates to a method for satellite tracking by use of an antenna assembly having a master antenna for receiving and transmitting signals to and from a master antenna satellite in a first frequency band, and a slave antenna for receiving signals from a slave antenna satellite in a second satellite band, where the master and slave antennas have physical bore-sight axes which can be arranged at different directions in relation to each other. The method of the invention includes a master antenna search routine and a slave antenna search routine. The master antenna search routine comprises the steps of changing or switching a direction of reception of the master antenna, monitoring, during the changing or switching of direction of reception of the master antenna. The slave antenna search routine comprises the steps of arranging the direction of the physical bore-sight axis of the slave antenna at a first slave direction, where the first slave direction is at least partly based on the obtained direction of the physical bore-sight axis of the master antenna.
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Gifford Krass Sprinkle Anderson & Citkowski P.C.
Ho Tan
Spacecom Holding APS
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