Patent ID: 11864295
Assignee: SKYWORKS SOLUTIONS, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H  F | IPC F  H

Claim 0:
1. A packaged module comprising:
a package substrate;
a radio frequency shielding structure extending above the package substrate;
a front end integrated circuit positioned in an interior of the radio frequency shielding structure, the front end integrated circuit including a multi-mode power amplifier circuit that includes an input stage and a stacked output stage that is coupled to the input stage by way of an inter-stage matching network, the stacked output stage including a transistor stack of two or more transistors arranged in series with each other, and a bias circuit configured to bias the transistor stack such that the stacked output stage functions like there is at least one less transistor in the transistor stack in a second mode relative to a first mode; and
an antenna on the package substrate external to the radio frequency shielding structure.