High-efficiency power amplifier
US8013676B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2010 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | Jun 16, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/408
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A high-efficiency power amplifier is provided, including a drive amplifier and a final power amplifier, and further including a first digital pre-distortion (DPD) correction module and a second DPD correction module. The first DPD correction module is configured to pre-distort nonlinear characteristics of drive signals output by the drive amplifier, and the second DPD correction module is connected to the first DPD correction module in series, and is configured to pre-distort nonlinear characteristics of amplified signals output by the final power amplifier. Another high-efficiency power amplifier is also provided, including a drive amplifier and a final power amplifier, and further including a second multi-path control module, a fourth DPD correction module, and a second gating module. The overall efficiency of the high-efficiency power amplifier is increased by improving the working efficiency of the drive amplifier. Further, higher overall efficiency is also achieved for a power amplifier with a higher gain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.