Techniques on input transformer to push the OP1dB higher in power amplifier design
US8629727B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2011 |
| Grant date | Jan 14, 2014 |
| Priority date | — |
| Expiry date | Dec 23, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45731
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A power amplifier includes a first transistor and a first inductor disposed between the first transistor and a voltage source. A first node between the first transistor and the first inductor is an output node. The power amplifier further includes a second inductor disposed between the first transistor and ground The power amplifier further includes a third inductor coupled to a gate of the first transistor and configured as a first AC input. The power amplifier further includes a first phase conditioner inductively coupled to the second inductor and the third inductor and configured to set phases of AC signals across the first inductor and the second inductor in phase. The second inductor is configured to release energy into the first inductor to raise a voltage of the AC signal and raise a power output at the output node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.