Radio transmitter and method for transmission of combined signal
US8355682B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 5, 2010 |
| Grant date | Jan 15, 2013 |
| Priority date | — |
| Expiry date | Mar 11, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/0425
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A radio transmitter is disclosed which comprises at least two transmit paths. A combiner is connected to the at least two transmit paths for combining modified transmit signals on the at least two transmit paths to form a combined signal. The radio transmitter further comprises a; power amplifier for receiving and power amplifying the combined signal resulting in an amplified combined signal, at least one feedback path for sampling the amplified combined signal and at least two predistortion elements connected to the at least one feedback path and adapted to produce at least two individual predistortion functions for modification of the transmit signals in the at least two frequency bands to produce the modified transmit signals on the at least two transmit paths, resulting in a corrected amplified combined signal. A method for the transmission of a combined signal, wherein the combined signal comprises signals from different frequency bands, is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.