Patent ID: 11916517
Assignee: SKYWORKS SOLUTIONS, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A power amplifier system comprising:
a power amplifier including an input configured to receive a radio frequency signal, a gain bipolar transistor configured to amplify the radio frequency signal, and a capacitor connected between the input of the power amplifier and a base of the gain bipolar transistor; and
a saturation detector including a detection bipolar transistor that is thermally coupled to the gain bipolar transistor, the saturation detector further including an input electrically connected to the base of the gain bipolar transistor and an output configured to generate a saturation detection signal indicating a saturation of the gain bipolar transistor, the saturation detector further including a modulation bandwidth filter electrically connected between the base of the gain bipolar transistor and a base of the detection bipolar transistor.