Doherty power amplifiers and devices with low voltage driver stage in carrier-path and high voltage driver stage in peaking-path
US11515842B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2020 |
| Grant date | Nov 29, 2022 |
| Priority date | — |
| Expiry date | Apr 16, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/555
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Doherty power amplifiers and devices are described with a low voltage driver stage in a carrier-path and a high voltage driver stage in a peaking-path. In an embodiment a Doherty power amplifier has a carrier-path driver stage transistor configured to operate using a first bias voltage at the driver stage output, and a final stage transistor configured to operate using a second bias voltage at the final stage output. A peaking-path driver stage transistor is configured to operate using a third bias voltage at the driver stage output, and a final stage transistor electrically coupled to the driver stage output of the peaking-path driver stage transistor is configured to operate using a fourth bias voltage at the final stage output, wherein the third bias voltage is at least twice as large as the first bias voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.