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

Claim 14:
15. A radio frequency circuit, comprising:
an amplifier configured to amplify radio frequency signals having different bandwidths,
wherein a bias voltage of a bias signal 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,
wherein a modulation scheme of the amplifier corresponds to the bandwidth of the radio frequency signal amplified by the amplifier,
wherein the modulation scheme for a first radio frequency signal amplified by the amplifier is based on a fourth generation mobile communication system (4G),
wherein the modulation scheme for a second radio frequency signal amplified by the amplifier is based on a wireless local area network (WLAN), and
wherein a peak to average power ratio (PAPR) of the bias signal when the first radio frequency signal is amplified by the amplifier is lower than the PAPR of the bias signal when the second radio frequency signal is amplified by the amplifier.