High power Doherty amplifier using multi-stage modules
US7193473B2 · kind B2 · utility
15Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2005 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | Jul 13, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/0288
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A high power Doherty RF amplifier utilizes multi-stage amplifier modules for both the main amplifier and the peak amplifiers. In one embodiment of a two way two stage amplifier, the first stage of each amplifier module can include signal pre-distortion whereby the first stage compensates for distortion in both the first and second stages. The design is simple and results in a high efficiency amplifier with high gain. In one embodiment, a commercially available CREE PFM19030SM power module is used in both the main amplifier and the peak amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.