Nonlinear distortion compensation power amplifier
US6859099B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 19, 2001 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Nov 2, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/3247
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A nonlinear distortion compensating power amplifier is provided with a gain adjustment circuit and performs gain adjustment control so that the overall gain of the entire system including a power amplifier is always maintained at a constant value. While this gain adjustment is being performed, a control circuit determines an optimum distortion amount pattern corresponding to instantaneous values of an input signal supplied to a distortion signal generation circuit to enable this circuit to generate a distortion signal such that the power of unnecessary out-of-band signal components in an output signal from the power amplifier is minimized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.