Patent ID: 10123286

Abstract:
An outphasing power management circuit for radio frequency (RF) beamforming is disclosed. The outphasing power management circuit includes a first outphasing amplifier branch consisting of a plurality of first power amplifiers and a second outphasing amplifier branch consisting of a plurality of second power amplifiers. A controller operates the first outphasing amplifier branch and the second outphasing amplifier branch as a pair of outphasing power amplifiers. The first outphasing amplifier branch generates a plurality of first output signals, and the second outphasing amplifier branch generates a plurality of second output signals. The first output signals and the second output signals are transmitted in an RF beam without being combined. As such, it is possible to support RF beamforming with a reduced number of power amplifiers and/or direct current (DC) to DC converters, thus helping to improve efficiency and reduce cost.