Signal dependent current controlled amplifier and method of performing same
US6614303B2 · kind B2 · utility
5Cited by
8References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 17, 2001 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Aug 22, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45638
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A low-noise amplifier for radio frequency signals uses the magnitude of the input signal to adjust the output current of a current source if the input signal magnitude exceeds a predetermined value. The current source provides operating current to the low-noise amplifier. Compensation for gain reduction due to large input signal magnitude is therefore achieved by increasing the gain of the low noise amplifier in such situations by increased operating current. As a result, power consumption savings and better linearization are achieved, especially for such low-noise amplifiers used in mobile receivers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.