Wide band and low noise amplifier for metric waves
US4853652A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 17, 1988 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | Mar 17, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/372
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A wide band low noise amplifier for metric waves, including a transistor connected by its emitter to the ground of the amplifier through two secondary windings, connected in series, of a first and second transformer, and coupled between its base and its emitter by the primary winding of the first transformer, one end of the primary winding of the second transformer being connected to the collector of the transistor, the output signal of the amplifier being taken from all or part of the primary of the second transformer and the number of turns of the secondaries of the transformers being very low so as to limit the leak inductance, which amplifier further comprises a first resistor connected in series with the two secondary windings and a second resistor connected between the output of the amplifier and the transistor base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.