Feed-forward amplifier device and method thereof
US9369092B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2012 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Mar 11, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/21142
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present application discloses a feed-forward amplifier device and the method thereof. The device comprises: a splitter for splitting an input signal into two portions; a non-linear amplifier for amplifying the input signal and producing inter-modulation products; a carrier canceling unit for generating pure inter-modulation products; a linear amplifier for amplifying the pure inter-modulation products; and a coupler for generating final output signal by counteracting the inter-modulation products with the amplified pure inter-modulation products; wherein the splitter and the carrier canceling unit are provided in digital base band. According to the present disclosure, pure inter-modulation products can be generated and adjusted more flexibly and more accurately in digital base band, and hence ideal output signal may be generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.