RF transmitter, integrated circuit device, wireless communication unit and method therefor
US9813086B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2013 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Oct 26, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/0425
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A radio frequency (RF) transmitter includes a power amplifier comprising a plurality of power amplifier cells. At least one digital signal processing module of the RF transmitter is operably coupled to the power amplifier and comprises at least one digital pre-distortion component arranged to apply at least one digital pre-distortion codeword to the plurality of power amplifier cells, wherein the at least one digital pre-distortion codeword is applied to at least one of the plurality of power amplifier cells via a digital filter. A combiner is arranged to combine outputs of the plurality of power amplifier cells thereby generating an analogue RF signal for transmission over an RF interface based at least partly on the digitally filtered at least one digital pre-distortion codeword.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.