Modular radio frequency amplifier having a gain variable by external passive component selection
US4112386A · kind A · utility
14Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1977 |
| Grant date | Sep 5, 1978 |
| Priority date | — |
| Expiry date | Feb 14, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/22
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A broad-band radio-frequency amplifier is characterized by a gain which may be adjusted over a relatively large range, and which remains stable over the range of gain adjustments. The amplifier includes first and second transistor pairs each arranged in a cascode connection; a feedback capacitor connected across the output and input of each cascode pair; and inductance serially included at selected circuit points. Also disclosed is a hybrid circuit for efficiently implementing the amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.