Amplifier linearization using non-linear predistortion
US7330517B2 · kind B2 · utility
12Cited by
2References
32Claims
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Key dates
| Filing date | Nov 24, 2003 |
| Grant date | Feb 12, 2008 |
| Priority date | — |
| Expiry date | Nov 1, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2201/3227
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Apparatus for amplifying an input signal having an input signal power includes a power amplifier, which is adapted to amplify an intermediate signal so as to generate an output signal, and which is characterized by a non-linearity. A non-linear filter is coupled to decompose the input signal into a series of input signal components, each such component proportional to a product of the input signal by a respective integer power of the input signal power, and is adapted to filter the signal components responsively to the non-linearity so as to generate the intermediate signal for input to the power amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.