Patent ID: 11909360
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A radio frequency circuit, comprising:
an amplifier configured to amplify radio frequency signals having different bandwidths;
a first bias power supply circuit configured to output a first bias signal to the amplifier; and
a second bias power supply circuit configured to output a second bias signal to the amplifier,
wherein bias voltages of the first and second bias signals applied to the amplifier tracks a change in a power amplitude of the radio frequency signal amplified by the amplifier,
wherein a degree of tracking the change in the power amplitude corresponds to a bandwidth of the radio frequency signal amplified by the amplifier, and
wherein the first bias signal changes to track the change in power amplitude at a different degree than the second bias signal.