Doherty amplifiers and amplifier modules with shunt inductor and capacitor circuit for improved carrier harmonic loading
US12088255B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2021 |
| Grant date | Sep 10, 2024 |
| Priority date | — |
| Expiry date | Dec 10, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/451
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A Doherty amplifier includes a peaking amplifier, a carrier amplifier, and a combining node electrically connected to the carrier amplifier and the peaking amplifier. The Doherty amplifier includes a harmonic control circuit coupled to the combining node. The harmonic control circuit includes an inductor and a capacitor and the inductor and capacitor are connected in series between the first current conducting terminal and a ground reference node. An inductance value of the inductor of the harmonic control circuit and a capacitance value of the capacitor of the harmonic control circuit are selected to terminate second order harmonic components of a fundamental frequency of a signal generated by the carrier amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.