Signal mixer having a single-ended input and a differential output
US7676212B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2006 |
| Grant date | Mar 9, 2010 |
| Priority date | — |
| Expiry date | Oct 19, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D2200/0088
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A mixer comprises a differential input circuit that is configured to receive an input signal. The mixer comprises a tank circuit including a tuning capacitor arranged in parallel with an inductor. A resonant frequency of the inductor and tuning capacitor is substantially centered around a predetermined frequency of the input signal. The mixer comprises a mixer circuit that communicates with the differential input circuit and that is configured to receive first and second current signals and a second input signal. The mixer circuit is configured as a Gilbert cell double-balanced switching mixer for generating a differential mixer output signal as a product of the first and second current signals and the second input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.