RF amplifier architecture and related techniques
US8824978B2 · kind B2 · utility
131Cited by
31References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2012 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | Jan 20, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/0475
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A radio frequency (RF) power amplifier system or transmitter includes one or more power amplifiers and a controller that is configured to adjust amplitudes and phases of RF input signals of the one or more power amplifiers and supply voltages applied to the one or more power amplifiers. In embodiments where multiple power amplifiers are used, a combiner may be provided to combine outputs of the power amplifiers. In at least one implementation, amplitude adjustment of the RF input signals of the one or more power amplifiers may be used to provide transmit power control and/or power backoff.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.