Efficiency-optimised high-frequency power amplifier
US9621114B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 2015 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Jun 22, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/21106
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An amplifier according to the principle of load modulation comprises a first push-pull transistor, a second push-pull transistor and a balanced hybrid coupler. The first push-pull transistor is configured as a main amplifier and generates a balanced main-amplifier signal. The second push-pull transistor is configured as an auxiliary amplifier and generates a balanced auxiliary-amplifier signal. Outputs of the first push-pull transistor and of the second push-pull transistor are connected to the balanced hybrid coupler in such a manner that the balanced hybrid coupler combines the main-amplifier signal and the auxiliary amplifier signal according to the principle of load modulation to form a balanced output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.