Power amplification module

Provided is a power amplification module that includes: an amplification transistor that has a constant power supply voltage supplied to a collector thereof, a bias current supplied to a base thereof and that amplifies an input signal input to the base thereof and outputs an amplified signal from th...

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Bibliographische Detailangaben
Hauptverfasser: Ono, Seiko, Ishihara, Shota, Shimamune, Yusuke, Soga, Takashi, Adachi, Tetsuaki, Morisawa, Fuminori
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:Provided is a power amplification module that includes: an amplification transistor that has a constant power supply voltage supplied to a collector thereof, a bias current supplied to a base thereof and that amplifies an input signal input to the base thereof and outputs an amplified signal from the collector thereof; a first current source that outputs a first current that corresponds to a level control voltage that is for controlling a signal level of the amplified signal; and a bias transistor that has the first current supplied to a collector thereof, a bias control voltage connected to a base thereof and that outputs the bias current from an emitter thereof.