Patent ID: 11936416
Assignee: SKYWORKS SOLUTIONS, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A method of power amplifier biasing, the method comprising:
amplifying a radio frequency input signal using a cascode power amplifier that includes a gain field-effect transistor having a gate configured to receive the radio frequency input signal, a first cascode field-effect transistor connected in series with the gain field-effect transistor, and a bias field-effect transistor connected to the gate of the gain field-effect transistor to form an input current mirror;
generating a plurality of selectable bias voltages using a bias voltage generator;
biasing a gate of the first cascode field-effect transistor with a first cascode bias voltage selected from amongst the plurality of selectable bias voltages by a bias voltage selector; and
providing the input current mirror with a reference current chosen from a plurality of reference currents using a bias current generator.