Patent ID: 11942912
Assignee: SKYWORKS SOLUTIONS, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. An amplifier comprising:
a transistor including a gate or a base coupled to an input node and a drain or a collector coupled to an output node, the transistor being configured to selectively operate in a first gain mode based on a first amount of voltage and a second gain mode based on a second amount of voltage; and
a circuit coupled between the input node and the gate or the base of the transistor without being coupled to a source or an emitter of the transistor, the circuit including an inductor and a switching-capacitive arm coupled in parallel to the inductor, the switching-capacitive arm including a capacitor and a switch coupled in series, the circuit being configured to (i) a first state for the first gain mode that includes the switch in an open state and the inductor included on a signal path between the input node and the gate or the base of the transistor, and (ii) a second state for the second gain mode that includes the switch in a closed state and the inductor and the capacitor included on the signal path between the input node and the gate or the base of the transistor, the transistor being configured to amplify a signal in the first gain mode and the second gain mode.