90-degree lumped and distributed Doherty impedance inverter
US11722101B2 · kind B2 · utility
0Cited by
43References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2021 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | Dec 17, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/451
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods for a modified Doherty amplifier operating at gigahertz frequencies are described. The combining of signals from a main amplifier and a peaking amplifier occur prior to impedance matching of the amplifier's output to a load. An output impedance-matching element can be relied upon. In one example, the output impedance-matching element can include an output strip line, a shunt capacitor connected between the output strip line and ground, an output capacitor connected between the output strip line and an output bonding pad, and an inductive strip line connected between the output bonding pad and ground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.