Stable, narrow bandwidth, high frequency amplifier with low power consumption
US5406226A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1993 |
| Grant date | Apr 11, 1995 |
| Priority date | — |
| Expiry date | Jul 7, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/489
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A low noise narrow band amplifier with low power consumption for amplifying radio frequency and microwave signals. The amplifier includes a high frequency transistor that has a cut-off frequency greater than the center frequency of the input signal. The amplifier includes an emitter inductor for low noise and better input match. The amplifier is stabilized for out-of-band high frequency oscillations by a collector inductor and a base inductor. The amplifier is further stabilized unconditionally for out-of-band high frequency oscillations by a stabilizing circuit coupled between the output and ground, including a stabilizing capacitor in series with a stabilizing resistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.