Multi-band, multi-mode RF transmit amplifier system with separate signal paths for linear and saturated operation
US8380146B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2009 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | May 1, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/045
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A device includes: an input for receiving an RF input signal having a signal format selected among a plurality of signal formats, including at least one signal format to be linearly amplified, and at least another signal format be amplified in saturation; at least a first and a second output; a first amplification path from the input to the first output that includes a first amplifier that operates in a linear amplification mode with respect to the RF input signal; a second amplification path from the input port to the second output that includes the first amplifier, and a second amplifier that operates in saturated amplification with respect to the RF input signal; and a path selection device that selectively passes the RF input signal through the first amplification path or the second amplification path in response to the selected signal format of the RF input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.