Doherty amplifier and method for operation thereof
US8022768B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2009 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | Nov 26, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/0261
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An amplifier having a Doherty-type architecture and a method for operation thereof are provided. The amplifier comprises a main amplifier path comprising a main amplifier, an auxiliary amplifier path comprising an auxiliary amplifier, and an signal preparation unit configured to develop a main amplifier input signal for the main amplifier path and an auxiliary amplifier input signal for the auxiliary amplifier path based on an amplifier input that is to be amplified and a transition threshold associated with the amplifier input. By driving the main and auxiliary amplifiers as a function of the transition threshold, the gain of the Doherty-type amplifier may be increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.