Modified doherty amplifier
US7248110B2 · kind B2 · utility
3Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2005 |
| Grant date | Jul 24, 2007 |
| Priority date | — |
| Expiry date | Mar 15, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/255
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Systems and methods are provided for efficient amplification of a signal utilizing a modified Doherty amplifier system. A modified Doherty amplifier system includes a nonlinear main amplifier and a nonlinear auxiliary amplifier. An impedance-inverting network separates the main amplifier from an associated load. A second quarter wave transmission line separates the auxiliary amplifier from an associated signal source. The signal source has an associated minimum signal power, such that the signal power never drops below a predetermined percentage of a peak signal power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.