Observation or telecommunication satellites
US6215458A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1998 |
| Grant date | Apr 10, 2001 |
| Priority date | — |
| Expiry date | Feb 3, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S343/02
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The low earth orbit radar remote sensing or telecommunication satellite includes an antenna forming member in a plane passing through the center of Earth, for example, the plane of its orbit. The antenna(s) are on one or both faces of the member. The height of the antenna forming member is greater than its dimension in the direction of travel of the satellite, so that the satellite is naturally stabilized by the gravity gradient. The solar generator cells are carried by the antenna forming member on the face that is kept facing towards the Sun in the case of a 6 H/18 H local time heliosynchronous orbit. The antenna forming member comprising a plurality of hinged panels over which the received or transmitted wave phase control means are distributed, it includes a plurality of GPS sensors distributed over the panels, enabling measurement and subsequent compensation by the phase-shifters of deformations of the member. At launch, the panels are folded into an elongate cylindrical shell along the launch system axis and having a pyrotechnic trap allowing deployment of the panels. In orbit, this shell constitutes the equipment module integrating all the equipment units other than the pane…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.