Active mixer circuit and a receiver circuit or a millimeter-wave communication unit using it
US8121579B2 · kind B2 · utility
6Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2009 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | May 3, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D2200/0043
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention provides a semiconductor integrated circuit including an active mixer circuit that is operated at low voltage, low noise, and low power consumption. It includes a transconductance amplifier, a transformer, and a multiplier, connects a transformer between the transconductance amplifier and the multiplier, and separates between the transconductance amplifier and the multiplier with respect to direct current inside the transformer. Further, each of the tranconductance amplifier and the multiplier is configured of transistors that are single-stacked between the supply voltage terminal and ground terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.