Feedforward amplifier
US6046637A · kind A · utility
0Cited by
2References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1998 |
| Grant date | Apr 4, 2000 |
| Priority date | — |
| Expiry date | Aug 11, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/3235
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An improved feedforward amplifier capable of enhancing accuracy of extraction of an error signal corresponding to a distortion component while preventing outflow of an pilot signal. A switch is disposed between a pilot signal oscillator and a third power combiner for superimposing the pilot signal on an output signal from a main amplifier, and third control means is connected with the switch so that the switch is opened at the time of error signal extraction and closed at the time of error signal elimination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.