The Inmarsat omni-antenna deployment mechanism is described. Deployment of the antenna occurs in two stages. Stage one, which occurs while the spacecraft is spinning in transfer orbit, deploys the antenna parallel to the spacecraft Z axis. Stage 2, which occurs on station, moves the antenna radially outward from the spacecraft center line. Both stages are initiated by pyrotechnic release nuts. Novel features, such as the use of roller bearings in the stage one deployment mechanism and the use of a passive low force device to retain the coax cable in position during the launch vibration environment, are discussed.
Inmarsat Omni-Antenna Deployment Mechanism
1990
5 pages
Report
Keine Angabe
Englisch
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