Digital radio frequency circuitry

Johan Hoang-Dung Nguyen (Inventor), Khaled Khalaf (Inventor), Pierre Wambacq (Inventor), Jan Craninckx (Inventor)

Research output: Patent

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.
Original languageEnglish
Patent numberUS11128326
Publication statusPublished - 2021

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