Biasing radio frequency circuits with digital controls

An antenna subsystem, comprising:

• a plurality of beamforming circuits, wherein each beamforming circuit of the plurality of beamforming circuits is configured to adjust component radio frequency signals for one or more antenna elements, and wherein each beamforming circuit of the plurality of beamforming circuits comprises one or more phase shifters, one or more amplifiers, and a supply input for providing supply power to the one or more amplifiers;
• and
• a programmable digital device comprising:
• a beam steering input configured to receive a beam direction value;
• a control mode input configured to receive a control mode value for the plurality of beamforming circuits;
• and
• a plurality of digital outputs, including:
• a first set of the plurality of digital outputs configured to provide phase adjustment control signals to the one or more phase shifters of at least a subset of the plurality of beamforming circuits based at least in part on the beam direction value;
• and
• a second set of the plurality of digital outputs configured to directly power supply inputs of the at least the subset of the plurality of beamforming circuits based at least in part on the control mode value, wherein the programmable digital device controls whether individual beamforming circuits of the at least the subset of the plurality of beamforming circuits are enabled or disabled via the second set of the plurality of digital outputs.