Mixer having low noise, controllable gain, and/or low supply voltage operation
US6865382B2 · kind B2 · utility
30Cited by
11References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 7, 2002 |
| Grant date | Mar 8, 2005 |
| Priority date | — |
| Expiry date | Mar 24, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D2200/0084
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A mixer includes a reference current source, a programmable gain RF transconductance section or an RF transconductance section, switching quad native transistors or switching quad transistors, and a folded-cascoded common mode output section or an output section. When the mixer included the programmable gain RF transconductance section, the gain of the mixer is adjustable. When the mixer includes the switching quad native transistors, flicker noise of the mixer is reduced. When the mixer includes the folded-cascoded common mode output section, the mixer operates reliably from low supply voltages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.