Feedforward linearization of RF power amplifiers
US7642850B2 · kind B2 · utility
4Cited by
14References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2008 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | May 30, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/3229
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
RF amplifier system (200) incorporating feedforward linearization. The system includes a digital waveform source (202) generating digital data s(t) representative of at least one analog signal. The system also includes a feedforward linearization circuit for reducing a distortion of an RF power amplifier (212). The feedforward linearization circuit includes a differential amplifier (230) arranged for generating an error signal. The error signal is determined based on a difference between the distorted RF output signal and an analog RF reference signal (229) generated from the digital data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.