Routing of downlink channels in a communications satellite
US8248977B2 · kind B2 · utility
4Cited by
13References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 9, 2008 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Aug 16, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/18515
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
For selectively routing downlink frequency channels to downlink beams of a communications satellite, the inherent routing functionality of a normal bandwidth multiport amplifier (MPA) is exploited in conjunction with the grouped channel filter characteristics of an output multiplexer (OMUX). In this arrangement the guard bands inherent in the OMUX mitigate the poor inter-port isolation inherent in the MPA so that two low performance elements in combination can be used to achieve an improved performance at system level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.