Patent ID: 9088249
Filing Date: 2015-07-21
Classification: H01L,H03F

Abstract:
1. A method of powering a power amplifier system of a wireless device, the method comprising: generating a first power amplifier supply voltage using an envelope tracker; providing the first power amplifier supply voltage from an output of the envelope tracker to three or more power amplifiers over a first power supply network, the three or more power amplifiers including a first power amplifier and a second power amplifier, the first power amplifier supply network including a first inductor electrically connected between a first supply input of the first power amplifier and the output of the envelope tracker, and a second inductor electrically connected between a first supply input of the second power amplifier and the output of the envelope tracker; resonating the first inductor and a distributed capacitance of the first power supply network at a first frequency greater than a modulation bandwidth of the envelope tracker; and resonating the second inductor and the distributed capacitance of the first power supply network at a second frequency greater than the modulation bandwidth of the envelope tracker.