Radio communication apparatus, transmitter, and radio communication method
US9287960B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2010 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Feb 22, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/22
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a phased array antenna radio communication apparatus including a plurality of antennas, a radio communication apparatus is provided which can reduce an influence of the local leak signals on the radiation direction of transmission signals. Local signal phase shifters 11-1 to 11-h are used to control phases of local signals to be input to quadrature modulators 13-1 to 13-h, and baseband signal phase shifters 12-1 to 12-h are used to control phases of baseband signals to be input to the quadrature modulators 13-1 to 13-h. The radiation direction of the local leak signals to be sent from transmission antennas 15-1 to 15-h can be controlled by the local signal phase shifters 11-1 to 11-h, and the radiation direction of the transmission signals can be controlled by both of the local signal phase shifters 11-1 to 11-h and the baseband signal phase shifters 12-1 to 12-h.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.