Power amplifier including variable capacitor circuit
US8680928B2 · kind B2 · utility
68Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2012 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Mar 29, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/61
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A power amplifier includes first and second amplification stages. The first amplification stage is configured to amplify a radio frequency (RF) input signal. The second amplification stage includes at least one transistor configured to amplify an output of the first amplification stage, the second amplification stage being configured to have a capacitance between a gate of the at least one transistor and a first power supply voltage. The capacitance automatically varies with amplitude of the output of the first amplification stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.