Power amplifier with active bias circuit
US7368995B2 · kind B2 · utility
0Cited by
12References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2004 |
| Grant date | May 6, 2008 |
| Priority date | — |
| Expiry date | Feb 26, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/21
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A power amplifier with an active bias circuit and operating method thereof are provided. The power amplifier comprises a power amplifier transistor and an active bias circuit. The active circuit receives input power and applies a bias voltage to the gate of the power amplifier transistor. The bias voltage will increase in correspondence with an increase in the input power. Therefore, the power amplifier of this invention has excellent output power, linearity of operation and power-added efficiency in a range of input power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.