发明授权
- 专利标题: Radio frequency power amplifier
- 专利标题(中): 射频功率放大器
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申请号: US12823474申请日: 2010-06-25
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公开(公告)号: US08134409B2公开(公告)日: 2012-03-13
- 发明人: Masato Seki , Masahiro Maeda , Masatosi Kamitani
- 申请人: Masato Seki , Masahiro Maeda , Masatosi Kamitani
- 申请人地址: JP Osaka
- 专利权人: Panasonic Corporation
- 当前专利权人: Panasonic Corporation
- 当前专利权人地址: JP Osaka
- 代理机构: Greenblum & Bernstein, P.L.C.
- 优先权: JP2009-158265 20090702
- 主分类号: H03F3/68
- IPC分类号: H03F3/68
摘要:
A radio frequency power amplifier includes an input terminal to which a radio frequency signal is applied; a first hetero-bipolar transistor (HBT), which amplifies the radio frequency signal; a second HBT, which amplifies the radio frequency signal; a matching circuit connected to an output node of the second HBT; a switch connected to an output node of the matching circuit; and an output matching circuit connected to an output node of the first HBT. The output node of the switch is connected to the output node of the first HBT via the output matching circuit, and an impedance looking into an output side of the radio frequency power amplifier from the output node of the switch is higher than an impedance looking into the output side of the radio frequency power amplifier from the output node of the first HBT.
公开/授权文献
- US20110001566A1 RADIO FREQUENCY POWER AMPLIFIER 公开/授权日:2011-01-06
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