Parallel amplifier architecture with feedback control based on reflected signal strength
US9148100B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2009 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | Nov 11, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/602
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Two input signals are amplified and combined into an output signal by first and second amplification stages and a combiner element. The first amplification stage includes a first signal modification unit and a first amplifier which receives a first input signal and provides a first intermediate signal. The second amplification stage includes at least a second amplifier which receives a second input signal and provides a second intermediate signal. The combiner element combines the first and the second intermediate signals and produces the output signal. In addition, a sensor senses a reflected signal on a signal line connecting the first amplifier and the combiner element and a feedback loop extends between the sensor and the signal modification unit. The signal modification unit is adapted to modify the first input signal depending on a measurement signal output by the first sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.