Patent ID: 11942910
Assignee: SKYWORKS SOLUTIONS, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A method of power amplifier biasing, the method comprising:
amplifying a radio frequency signal using a power amplifier, including receiving the radio frequency signal at a base of a bipolar transistor of the power amplifier, and receiving a power amplifier supply voltage at a collector of the bipolar transistor;
biasing the base of the bipolar transistor using a base bias signal;
controlling the base bias signal based on a bandwidth signal using the power amplifier bias control circuit, including adapting a bandwidth of the power amplifier bias control circuit to a bandwidth of the radio frequency signal indicated by the bandwidth signal; and
generating a bias input signal, controlling a filter characteristic of a controllable filter using the bandwidth signal, and generating the base bias signal based on filtering the bias input signal using the controllable filter.