Impedance matching for a power amplifier system
US6765439B2 · kind B2 · utility
7Cited by
8References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 12, 2003 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Sep 12, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/302
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
One embodiment is a method for adjusting impedance of a power amplifier system comprising combining an output of a first power amplifier with an output of a second power amplifier via a coupler that couples an output connection of the first power amplifier with an output connection of the second power amplifier, wherein a prematching impedance network coupled to the second power amplifier adjusts a system impedance to a first value when the second power amplifier is not actuated, and wherein the prematching impedance network adjusts the system impedance to a second value when the second power amplifier is actuated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.