System and method for noise and spurious suppression in power amplifier systems
US6791408B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2002 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Jun 20, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/372
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An amplifier system is disclosed. The amplifier system includes a first amplifier, a second amplifier, and a phase noise suppression circuit. The first amplifier includes an input signal terminal and an output signal terminal. The second amplifier includes an input signal terminal and an output signal terminal. The input signal terminal of the second amplifier is coupled to the output signal terminal of the first amplifier. The phase noise suppression circuit includes first and second input terminals and an output terminal. The first input terminal of the phase noise suppression circuit is coupled to the input signal terminal of the first amplifier. The second input terminal of the phase noise suppression circuit is coupled to the output signal terminal of the second amplifier. The output terminal of the phase noise suppression circuit is coupled to the first amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.