Digital radio frequency circuitry
US11128326B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 13, 2020 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Nov 13, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/045
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A digital radio-frequency (RF) circuitry is disclosed. In one aspect, the circuitry includes a digitally controlled amplifier configured to receive an RF input signal and a digital control signal, and to output an amplitude controlled output signal. The digitally controlled amplifier includes one or more common-source amplifying unit cells. A respective common-source amplifying unit cell includes a sources node connected to a switching circuitry controllable by the digital control signal so as to activate or deactivate the common-source amplifying unit cell. The switching circuitry comprises a first switch configured to connect the source node with a first power supply node and a second switch configured to connect the source node with a second power supply node when activating and deactivating, respectively, the common-source amplifying unit cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.