Signal extraction circuit and distortion-compensated amplifier incorporating the same
US7456688B2 · kind B2 · utility
37Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2007 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | May 30, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2201/3231
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
To cancel a reflected wave reflected from a connecting portion (22) and leaking into a feedback signal when a non-matched component is connected, the reflected wave is extracted by a circulator (30) and its phase and amplitude are adjusted by a vector adjusting circuit (32), and then the thus adjusted reflected wave is vector-summed with the feedback signal in a vector sum circuit (34).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.