Monolithic integrated circuit device including AC negative feedback type high frequency amplifier circuit
US4542350A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1983 |
| Grant date | Sep 17, 1985 |
| Priority date | — |
| Expiry date | Jul 19, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/19
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A monolithic integrated circuit device is formed on a substrate and made up of an AC negative feedback circuit for a high frequency amplifier circuit. The AC negative feedback circuit includes a semiconductor impedance element and connected to an external terminal on the substrate, and variable control means for adjusting an amount of the AC feedback of the high frequency amplifier circuit. As the semiconductor impedance element is used the junction capacitance of a diode under negative bias, diffusion capacitance between the base and emitter electrodes or between the base and collector electrodes of a transistor or a differentiated resistance of a diode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.