Integrated technique for enhanced power amplifier forward power detection
US8947164B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 14, 2013 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Aug 14, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/19
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A power amplifier has power detection capabilities that include a radio frequency (RF) power amplifier that has a gain stage that includes a gain stage input, a gain stage output, and a feedback loop coupled between an input and an output of the power amplifier. A detection circuit has a first detection circuit input electrically coupled to the gain stage input and has a detection circuit output. An amplitude control circuit and a phase control circuit are electrically coupled together in series between the gain stage output and a second detection circuit input. The amplitude control circuit and the phase control circuit produce a signal that is received by the second detection circuit input so that the detection circuit can detect a signal at the detection circuit output that is proportional to a the forward power output of the power amplifier and is insensitive to power amplifier output load mismatch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.