Drive amplifier
US8410852B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2011 |
| Grant date | Apr 2, 2013 |
| Priority date | — |
| Expiry date | Jul 11, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45644
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A drive amplifier having improved linearity while being characterized by low current consumption. The drive amplifier includes first and second transistors having a gate to which first and second differential Radio Frequency (RF) voltages are respectively input; a third transistor which has a drain connected to a drain of the second transistor and a source connected to the gate of the first transistor, and a drain-source current which increases with an increase in the second differential RF voltage; and a fourth transistor which has a drain connected to a drain of the first transistor and a source connected to the gate of the second transistor, and a drain-source current which increases with an increase in the first differential RF voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.