Self-oscillating mixer with Darlington transistors
US4688005A · kind A · utility
8Cited by
4References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 1, 1986 |
| Grant date | Aug 18, 1987 |
| Priority date | — |
| Expiry date | Apr 1, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B5/1847
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A self-oscillating mixer is disclosed, and includes two bipolar transistors coupled as a Darlington pair, where the base of the first transistor receives an input signal, and where the common collectors of the transistors generate an output signal; and a feedback resonator operable for coupling signals at the local-oscillator frequency from the output side of the transistors to the input side of the transistors. Such a self-oscillating mixer can provide signal conversion gain at microwave frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.