Balanced mixer with calibration of load impedances
US7890077B2 · kind B2 · utility
0Cited by
13References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 31, 2009 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | Jul 31, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D2200/0088
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A calibration device is coupled to a balanced circuit device including first and second outputs provided with first and second load impedances. The calibration device includes an adjusting circuit to adjust the first and second load impedances into a load imbalance for linearization. A coupling circuit is inserted between the adjusting circuit and the first and second outputs to selectively couple the adjusting circuit to one of the first and second outputs, so that the adjusting circuit is coupled in parallel either to the first load impedance or to the second load impedance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.