US Patent No. 10,484,024

TRANSMISSION UNIT


Patent No. 10,484,024
Issue Date November 19, 2019
Title Transmission Unit
Inventorship Kiichiro Takenaka, Kyoto (JP)
Assignee MURATA MANUFACTURING CO., LTD., Kyoto (JP)

Claim of US Patent No. 10,484,024

1. A transmission unit comprising:a power amplification circuit configured to amplify a power of an input signal and to output an amplified signal; and
a power supply circuit configured to supply a power supply voltage to the power amplification circuit based on a first control signal that corresponds to a band width of the input signal,
wherein the power supply circuit is configured to:
vary the power supply voltage in accordance with an amplitude level of the input signal when the band width of the input signal is a first band width, and
vary the power supply voltage in accordance with an average output power of the power amplification circuit when the band width of the input signal is a second band width,
wherein the second band width is larger than the first band width.