Satellite system using optical gateways and ground based beamforming
US10142021B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2017 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Aug 22, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/90
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Described herein are ground based subsystems, and related methods, for use in transmitting an optical feeder uplink beam to a satellite that includes a multiple element antenna feed array and that is configured to accept the optical feeder uplink beam and in dependence thereon use the multiple element antenna feed array to produce and transmit a plurality of radio frequency (RF) service downlink beams to service terminals. Certain embodiments are related to a ground based beamformer (GBBF) for inclusion in a ground based subsystem, and methods for use therewith. Beneficially, embodiments described herein allow for flexible antenna beam forming for large signal bandwidth without the limitation associated with the available gateway uplink and downlink spectrum at RF frequencies. Also described herein are space based subsystems for use with such ground based subsystems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.