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

Claim 6:
7. A radio-frequency module comprising:
a low noise amplifier configured to amplify a first signal;
a power amplifier configured to amplify a second signal; and
a controller coupled to at least one of the low noise amplifier or the power amplifier, the controller being configured to select a first gain mode or a second gain mode for the radio-frequency module by causing a change in a supply voltage,
wherein at least one of the low noise amplifier or the power amplifier includes a transistor and an impedance circuit, the transistor including a gate or a base coupled to an input node and a drain or a collector coupled to an output node, the impedance circuit being coupled to the gate or the base of the transistor without being coupled to a source or an emitter of the transistor, the impedance 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 impedance circuit being configurable to (i) a first state, for the first gain mode, that includes the switch in an open state and the inductor 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 on the signal path between the input node and the gate or the base of the transistor, the transistor being part of the signal path in the first gain mode and the second gain mode.