Efficient power amplifier
US6329877A · kind A · utility
22Cited by
3References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1999 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | Jun 25, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/0288
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
There is disclosed a power amplifier includes an in-phase power splitter generating two split signals from an input signal, and two amplifiers capable of operating in different modes. The split signals are provided as respective inputs to the two amplifiers which are coupled through transmission lines such that as the first amplifier approaches the maximum power it can produce, the output from the second amplifier begins to contribute to the power amplifier output and supplements and modifies the power provided by the first amplifier thereby extending the range of input power over which the power amplifier delivers output power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.