Doherty power amplifier
US10033335B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2017 |
| Grant date | Jul 24, 2018 |
| Priority date | — |
| Expiry date | May 8, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/451
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A Doherty power amplifier includes a main device in a main amplifier circuit and an auxiliary device in an auxiliary amplifier circuit arranged in parallel with the main amplifier circuit. The Doherty power amplifier further includes a load modulation network including a first open-circuited transmission line connected to an output of the main device; a second open-circuited transmission line connected to an output of the auxiliary device; and an impedance transformation and phase compensation network connected with the output of the main device and the output of the auxiliary device for providing a combined output power. The first and second open-circuited transmission lines are arranged directly adjacent one another to form, during operation, a mutual coupling therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.