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专利名称：Power amplifier and communication device发明人：Yoichi Kawano申请号：US14227975申请日：20140327公开号：US09209769B2公开日：20151208
专利附图：
摘要：A power amplifier, includes: a first and a second amplifier circuits that arecontrolled so that one of them do not amplify a signal when another one of themamplifies the signal; a first impedance conversion circuit, coupled between the firstamplifier circuit and the output terminal, that converts an output impedance of the first
amplifier circuit; a second impedance conversion circuit, coupled between the secondamplifier circuit and a wiring coupling the first impedance conversion circuit and theoutput terminal, that converts an output impedance of the second amplifier circuit; and aconnection circuit that, when the first amplifier circuit amplifies the signal, forms a pathwhich bypasses the second impedance conversion circuit between a reference potentialand the wiring coupling the first impedance conversion circuit and the output terminal, bycoupling a wiring coupling the first amplifier circuit and the output terminal, with thereference potential.
申请人：FUJITSU SEMICONDUCTOR LIMITED
地址：Yokohama-shi, Kanagawa JP
国籍：JP
代理机构：Arent Fox LLP
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