Digital beamforming in a satellite communication system
US6016124A · kind A · utility
87Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1998 |
| Grant date | Jan 18, 2000 |
| Priority date | — |
| Expiry date | Apr 6, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/2041
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A plurality of bit stream formatters formats and codes the digital information signals that are to be transmitted. A symbol generator generates I and Q symbols from the formatted information signals. These symbols are input to the beamforming matrix that is connected directly to the symbol generators. The beamforming matrix generates baseband beam signals from the I and Q symbols. Baseband, pulse-shaping, low-pass filters are connected to the beamforming matrix. The low-pass filters each generate an antenna feed signal from each of the baseband beam signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.