Power amplifier and gain switching circuit thereof
US9887679B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2017 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | Jan 29, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/462
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A power amplifier gain switching circuit includes: a gain controller configured to receive an external input signal, output a first input signal, receive an external drive signal, and output a control signal based on the drive signal; an amplifier including: a bias input terminal configured to receive an external bias voltage; a signal input terminal configured to receive the first input signal; a control terminal configured to receive the control signal; and an output terminal configured to output an output signal with a gain; wherein the amplifier is configured to switch a gain factor of the output signal based on the control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.