Load mismatch adaptation in coupler-based amplifiers
US7138861B2 · kind B2 · utility
15Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2004 |
| Grant date | Nov 21, 2006 |
| Priority date | — |
| Expiry date | Jan 1, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/204
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Coupler-based amplifiers provide a measure of load mismatch based on the difference between the two output signal amplitudes from the amplifiers. This measure can be used to control variable matching networks (VMNs) or amplifier supply voltages to maintain constant distortion levels and high power transfer/efficiency and even to control output power. Load mismatch is measured by comparing the amplifier device output amplitudes and adjusting the circuit based on the comparison to counteract undesired behavior, such as increasing distortion levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.