Apparatus and method for synchronizing power circuits with coherent rf signals to form a steered composite rf signal

An apparatus has a Radio Frequency (RF) signal generator to produce RF signals phase shifted relative to one another in accordance with RF frequency waveform parameters. Amplifier chains process the RF signals to produce channels of amplified RF signals. Each amplifier chain includes a plurality of solid state amplifiers each of which has a tunable gate voltage; power sequencers controlled by the RF signal generator in order to turn on or off the solid state amplifiers in the amplifier chains based on a presence of RF signals to be amplified; and smart slave circuits configured to offset received master voltages from the power sequencers and provide, to each solid state amplifier, a tuned gate voltage, the smart slave circuits further configured to determine during an automatic calibration, for each solid state amplifier, the tuned gate voltage by: sensing with a current sensor a current flowing in a drain of the solid state amplifier; and adjusting a voltage offset added to a master voltage until the current flowing in the drain of the solid state amplifier reaches an optimum current value.