Wideband RF amplifiers
US7944307B2 · kind B2 · utility
9Cited by
3References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2009 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Mar 25, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45666
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A device for amplifying signals over a wide frequency range features stacked amplifying modules connected between a DC voltage source and an electrical ground. The stacking configuration reuses the DC current produced the voltage source, and thus reduces the amount of operational DC current permitting the use of lower voltage, higher frequency devices to be used. The amplifying modules are fed signals which are different versions of an input signal, and the output signals are AC coupled using capacitors to balance out gain imbalances and asymmetries between the amplifying modules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.