US 12695468 B2 / Jul 28, 2026

Phase keeping method to mitigate temperature related phase bias changes in duty cycled array

An apparatus comprises: antennas to each receive energy across a radio frequency range; a controller; and receiver channels configured to (i) when energized, pass the energy received by corresponding ones of the antennas to the controller with phase responses that vary with temperature, and (ii) when de-energized, not pass the energy; wherein the controller is configured to perform: operating one or more first receiver channels of the receiver channels in an operational mode that continuously energizes each first receiver channel; and operating second receiver channels of the receiver channels that are not in the operational mode in a phase-keeping mode that cyclically energizes and de-energizes each second receiver channel to maintain temperature equilibrium across the second receiver channels.