Title:
電力増幅装置
Document Type and Number:
Japanese Patent JP5624569
Kind Code:
B2
Abstract:
A power amplifier device includes an input terminal for a RF input signal. The power amplifier device includes an output terminal a RF output signal. The power amplifier device includes a first power amplifier connected to the input terminal, amplifies the RF input signal with a first gain, and outputs a first amplified signal. The power amplifier device includes a second power amplifier that amplifies a signal on the basis of the first amplified signal and outputs a second amplified signal with a second gain. The power amplifier device includes a low-pass filter or a band-pass filter that filters the second amplified signal. The power amplifier device includes an amplitude comparator to compare the first amplitude of the first comparison signal generated from the RF input signal with the second amplitude of the second comparison signal generated from the filtered signal and to output an amplitude comparison signal.
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Inventors:
香 西 昌 平
Application Number:
JP2012032749A
Publication Date:
November 12, 2014
Filing Date:
February 17, 2012
Export Citation:
Assignee:
株式会社東芝
International Classes:
H03F1/32
Attorney, Agent or Firm:
Katsunuma Hirohito
Yasukazu Sato
Kawasaki 康
Takeshi Sekine
Akaoka 明
Tomoya Deguchi
Yasukazu Sato
Kawasaki 康
Takeshi Sekine
Akaoka 明
Tomoya Deguchi